MAX232数据手册

The MAX211E/MAX213E/MAX241E are available in 28-pin SO packages, as well as a 28-pin SSOP that uses60% less board space. The MAX202E/MAX232E comein 16-pin narrow SO, wide SO, and DIP packages. TheMAX203E comes in a 20-pin DIP/SO package, andneeds no external charge-pump capacitors. TheMAX205E comes in a 24-pin wide DIP package, andalso eliminates external charge-pump capacitors. TheMAX206E/MAX207E/MAX208E come in 24-pin SO,SSOP, and narrow DIP packages. The MAX232E/MAX241E operate with four 1µF capacitors, while theMAX202E/MAX206E/MAX207E/MAX208E/MAX211E/MAX213E operate with four 0.1µF capacitors, furtherreducing cost and board space.

____________________________FeaturesoESD Protection for RS-232 I/O Pins:±15kV—Human Body Model

±8kV—IEC1000-4-2, Contact Discharge±15kV—IEC1000-4-2, Air-Gap DischargeoLatchup Free (unlike bipolar equivalents)oGuaranteed 120kbps Data Rate—LapLink™CompatibleoGuaranteed 3V/µs Min Slew RateoOperate from a Single +5V Power Supply

MAX202E–MAX213E, MAX232E/MAX241E_________________Pin Configurations TOP VIEWC1+1V+2C1-3C2+4C2-5V-6T2OUT7R2IN816VCC15GND14T1OUTMAX202E󰀀MAX232E13R1IN12R1OUT11T1IN10T2IN9R2OUT________________________ApplicationsNotebook, Subnotebook, and Palmtop ComputersBattery-Powered EquipmentHand-Held Equipment

Ordering Information appears at end of data sheet.DIP/SOPin Configurations and Typical Operating Circuits continued atend of data sheet._____________________________________________________________Selection GuidePARTMAX202EMAX203EMAX205EMAX206EMAX207EMAX208EMAX211EMAX213EMAX232EMAX241E

No. of RS-232DRIVERS

2254544424

No. of RS-232RECEIVERS

2253345525

RECEIVERSACTIVE INSHUTDOWN

0000000200

No. ofEXTERNALCAPACITORS4 (0.1µF)NoneNone4 (0.1µF)4 (0.1µF)4 (0.1µF)4 (0.1µF)4 (0.1µF)4 (1µF)4 (1µF)

LOW-POWERSHUTDOWN

NoNoYesYesNoNoYesYesNoYes

TTL THREE-STATE

NoNoYesYesNoNoYesYesNoYes

LapLink is a registered trademark of Traveling Software, Inc.________________________________________________________________Maxim Integrated Products1

For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800±15kV ESD-Protected, +5V RS-232 Transceivers MAX202E–MAX213E, MAX232E/MAX241EABSOLUTE MAXIMUM RATINGS

VCC...........................................................................-0.3V to +6VV+................................................................(VCC- 0.3V) to +14VV-............................................................................-14V to +0.3VInput Voltages

T_IN............................................................-0.3V to (V+ + 0.3V)R_IN...................................................................................±30VOutput Voltages

T_OUT.................................................(V- - 0.3V) to (V+ + 0.3V)R_OUT......................................................-0.3V to (VCC+ 0.3V)Short-Circuit Duration, T_OUT....................................ContinuousContinuous Power Dissipation (TA= +70°C)

16-Pin Plastic DIP (derate 10.53mW/°C above +70°C)....842mW16-Pin Narrow SO (derate 8.70mW/°C above +70°C).....696mW16-Pin Wide SO (derate 9.52mW/°C above +70°C)......762mW20-Pin Plastic DIP (derate 11.11mW/°C above +70°C)...889mW

20-Pin SO (derate 10.00mW/°C above +70°C).............800mW24-Pin Narrow Plastic DIP

(derate 13.33mW/°C above +70°C) ...............................1.07W24-Pin Wide Plastic DIP

(derate 14.29mW/°C above +70°C)................................1.14W24-Pin SO (derate 11.76mW/°C above +70°C).............941mW24-Pin SSOP (derate 8.00mW/°C above +70°C)..........640mW28-Pin SO (derate 12.50mW/°C above +70°C)....................1W28-Pin SSOP (derate 9.52mW/°C above +70°C)..........762mWOperating Temperature Ranges

MAX2_ _EC_ _.....................................................0°C to +70°CMAX2_ _EE_ _...................................................-40°C to +85°CStorage Temperature Range.............................-65°C to +165°CLead Temperature (soldering, 10sec).............................+300°C

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functionaloperation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure toabsolute maximum rating conditions for extended periods may affect device reliability.ELECTRICAL CHARACTERISTICS

(VCC= +5V ±10% for MAX202E/206E/208E/211E/213E/232E/241E; VCC= +5V ±5% for MAX203E/205E/207E; C1–C4 = 0.1µF forMAX202E/206E/207E/208E/211E/213E; C1–C4 = 1µF for MAX232E/241E; TA= TMINto TMAX; unless otherwise noted. Typical valuesare at TA= +25°C.)

PARAMETERDC CHARACTERISTICSMAX202E/203EMAX205E–208EVCCSupply CurrentICCNo load, TA= +25°CMAX211E/213EMAX232EMAX241EMAX205E/206EShutdown Supply CurrentLOGICInput Pull-Up CurrentInput Leakage CurrentInput Threshold LowVILT_IN = 0V (MAX205E–208E/211E/213E/241E)T_IN = 0V to VCC(MAX202E/203E/232E)T_IN; EN, SHDN(MAX213E) or EN, SHDN (MAX205E–208E/211E/241E)T_INInput Threshold HighVIHEN, SHDN(MAX213E) or EN, SHDN(MAX205E–208E/211E/241E)R_OUT; IOUT= 3.2mA (MAX202E/203E/232E) orIOUT= 1.6mA (MAX205E/208E/211E/213E/241E)R_OUT; IOUT= -1.0mAEN= VCC, EN = 0V, 0V ≤ ROUT≤ VCC,MAX205E–208E/211E/213E/241E outputs disabled3.5VCC - 0.4±0.05±102.02.40.4V15200±100.8µAµAVTA= +25°C, Figure 1MAX211E/241EMAX213E811145711151520201015101050µAmASYMBOLCONDITIONSMINTYPMAXUNITSOutput Voltage LowOutput Voltage HighOutput Leakage CurrentVOLVOHVVµA2_______________________________________________________________________________________

±15kV ESD-Protected, +5V RS-232 Transceivers ELECTRICAL CHARACTERISTICS (continued)

(VCC= +5V ±10% for MAX202E/206E/208E/211E/213E/232E/241E; VCC= +5V ±5% for MAX203E/205E/207E; C1–C4 = 0.1µF forMAX202E/206E/207E/208E/211E/213E; C1–C4 = 1µF for MAX232E/241E; TA= TMINto TMAX; unless otherwise noted. Typical valuesare at TA= +25°C.)

PARAMETERInput Voltage RangeAll parts, normal operationInput Threshold LowTA= +25°C, VCC= 5VTA= +25°C, VCC= 5VMAX213E, SHDN= 0V,EN = VCCAll parts, normal operationMAX213E (R4, R5), SHDN= 0V, EN = VCC0.23±5300±10±60SYMBOLCONDITIONSMIN-300.80.6TYPMAX301.21.51.71.50.55±92.42.41.07VVkΩVΩmAVUNITSVEIA/TIA-232E RECEIVER INPUTSMAX202E–MAX213E, MAX232E/MAX241EInput Threshold HighInput HysteresisInput ResistanceEIA/TIA-232E TRANSMITTER OUTPUTSOutput Voltage SwingOutput ResistanceOutput Short-Circuit CurrentTIMING CHARACTERISTICSMaximum Data RatetPLHR,tPHLRVCC= 5V, no hysteresis in shutdownTA= +25°C, VCC= 5VAll drivers loaded with 3kΩto ground (Note 1)VCC= V+ = V- = 0V, VOUT= ±2VRL= 3kΩto 7kΩ, CL= 50pF to 1000pF, one transmitter switchingAll parts, normal operationCL= 150pFMAX213E (R4, R5), SHDN= 0V, EN = VCC1200.5460020021040kbpsReceiver Propagation DelayµsReceiver Output Enable TimeReceiver Output Disable TimeTransmitter Propagation DelaytPLHT,tPHLTMAX205E/206E/211E/213E/241E normaloperation, Figure 2MAX205E/206E/211E/213E/241E normaloperation, Figure 2RL= 3kΩ, CL= 2500pF, all transmitters loadedTA= +25°C, VCC= 5V, RL= 3kΩto 7kΩ, CL= 50pF to 1000pF, measured from -3V to+3V or +3V to -3V, Figure 3Human Body ModelnsnsµsTransition-Region Slew Rate3630V/µsESD PERFORMANCE: TRANSMITTER OUTPUTS, RECEIVER INPUTS±15±8±15kVESD-Protection VoltageIEC1000-4-2, Contact DischargeIEC1000-4-2, Air-Gap DischargeNote 1:MAX211EE_ _ and MAX213EE_ _ tested with VCC= +5V ±5%.Note 1:MAX211EE_ _ tested with VCC= +5V ±5%.

_______________________________________________________________________________________3

±15kV ESD-Protected, +5V RS-232 TransceiversMAX202E–MAX213E, MAX232E/MAX241E__________________________________________Typical Operating Characteristics(Typical Operating Circuits, VCC= +5V, TA= +25°C, unless otherwise noted.)

MAX232E󰀀TRANSMITTER OUTPUT VOLTAGE󰀀vs. LOAD CAPACITANCEMAX202E-TOC1MAX202E-TOC27.5VOH, -VOL (V)7.06.5ALL TRANSMITTERS LOADED󰀀DATA RATE = 120kbps󰀀RL = 3kΩ7.5VOH, -VOL (V)7.06.56.05.5ALL TRANSMITTERS LOADED󰀀DATA RATE = 120kbps󰀀RL = 3kΩ7.5VOH, -VOL (V)7.06.56.05.5ALL TRANSMITTERS LOADED󰀀DATA RATE = 120kbps󰀀RL = 3kΩVCC = 5.5VVCC = 5.5VVCC = 5.0VVCC = 5.5VVCC = 5.0V6.05.5VCC = 4.5V5.0010002000300040005000LOAD CAPACITANCE (pF)VCC = 5.0VVCC = 4.5V5.0010002000300040005000LOAD CAPACITANCE (pF)5.00VCC = 4.5V10002000300040005000LOAD CAPACITANCE (pF)MAX202E-TOC47.5VOH, -VOL (V)7.06.56.05.55.0

VCC = 4.5V0

1000

ALL TRANSMITTERS LOADED󰀀DATA RATE = 120kbps󰀀RL = 3kΩ25SLEW RATE ( V/µs)201510

ALL TRANSMITTERS LOADED󰀀DATA RATE = 120kbps󰀀RL = 3kΩVCC = 5.5V-SLEW RATE5

+SLEW RATE0

VCC = 5.0V2000

3000

4000

5000

010002000300040005000

LOAD CAPACITANCE (pF)LOAD CAPACITANCE (pF)

4_______________________________________________________________________________________

MAX202E-TOC58.0

MAX211E/MAX213E󰀀

TRANSMITTER OUTPUT VOLTAGE󰀀

vs. LOAD CAPACITANCE

30

MAX211E/MAX213E/MAX241E󰀀TRANSMITTER SLEW RATE󰀀vs. LOAD CAPACITANCE

MAX202E-TOC38.08.0MAX202E/MAX203E󰀀TRANSMITTER OUTPUT VOLTAGE󰀀vs. LOAD CAPACITANCE8.0MAX241E󰀀TRANSMITTER OUTPUT VOLTAGE󰀀vs. LOAD CAPACITANCE±15kV ESD-Protected, +5V RS-232 Transceivers____________________________Typical Operating Characteristics (continued)(Typical Operating Circuits, VCC= +5V, TA= +25°C, unless otherwise noted.)

MAX202E/MAX203E/MAX232E󰀀MAX205E–MAX208E󰀀

MAX205E–MAX208E󰀀TRANSMITTER SLEW RATE󰀀TRANSMITTER OUTPUT VOLTAGE󰀀

TRANSMITTER SLEW RATE󰀀vs. LOAD CAPACITANCEvs. LOAD CAPACITANCE

vs. LOAD CAPACITANCE14

6C7.5

2080-ALL TRANSMITTERS LOADED󰀀O20kbps70-TCC-OOET VT2 CC = +4.5V, RL = 3kΩ 0EE222X0012DATA RATE = 120kbps󰀀18A22XRMAL = 3kΩ5.0 1 TRANSMITTER AT FULL DATA RATE󰀀120kbpsXAMM240kbps16 4 TRANSMITTERS AT 1/8 DATA RATE))V)(s µE/102.5sµ14/VGV A(T V(CC = +4.5V, RL = 3kΩ 12 ELETO0 1 TRANSMITTER AT FULL DATA RATE󰀀TARISEA8

V10R 4 TRANSMITTERS AT 1/8 DATA RATER W-SLEW RATE TWFALLUPE8ELS6TU-2.5

LSO6240kbps4+SLEW RATE-5.0120kbps420kbps22

-7.5

00

1000

2000

3000

4000

5000

0

1000

2000

3000

4000

5000010002000300040005000LOAD CAPACITANCE (pF)

LOAD CAPACITANCE (pF)LOAD CAPACITANCE (pF)MAX205E–MAX208E󰀀SUPPLY CURRENT󰀀MAX205E–MAX208E󰀀

vs. LOAD CAPACITANCE

OUTPUT VOLTAGE vs. DATA RATE

50

910.0

001--CCOO240kbpsTT EV+E22002245X7.5XAAMM)A)mV5.0VOUT+(( T40EN120kbpsGEA2.5RT VLCC = +4.5V, RL = 3kΩROU35V0 1 TRANSMITTER AT FULL DATA RATE󰀀C T 4 TRANSMITTERS AT 1/8 DATA RATEYULPPT-2.5PUU3020kbpsOS-5.0VOUT-25 VCC = +4.5V, RL = 3kΩ 1 TRANSMITTER AT FULL DATA RATE󰀀-7.5V- 4 TRANSMITTERS AT 1/8 DATA RATE20

-10.0

0

1000

2000

3000

40005000

0

30

60

90120150180210240LOAD CAPACITANCE (pF)

DATA RATE (kbps)_______________________________________________________________________________________5

MAX202E–MAX213E, MAX232E/MAX241E±15kV ESD-Protected, +5V RS-232 TransceiversMAX202E–MAX213E, MAX232E/MAX241E_____________________________________________________________Pin DescriptionsMAX202E/MAX232E

PINDIP/SO1, 324, 567, 148, 139, 1210, 111516__LCC2, 435, 789, 1810, 1712, 1513, 1419201, 6, 11, 16NAMEC1+, C1-V+C2+, C2-V-T_OUTR_INR_OUTT_INGNDVCCN.C.FUNCTIONTerminals for positive charge-pump capacitor+2VCCvoltage generated by the charge pumpTerminals for negative charge-pump capacitor-2VCCvoltage generated by the charge pumpRS-232 Driver OutputsRS-232 Receiver OutputsRS-232 Receiver OutputsRS-232 Driver InputsGround+4.5V to +5.5V Supply-Voltage InputNo Connect—not internally connected.MAX203E

PINDIP1, 23, 204,195,186, 97810, 1612, 17131411, 15SO1, 23, 204, 195, 186, 971311, 1610, 1714812, 15NAMET_INR_OUTR_INT_OUTGNDVCCC1+C2-V-C1-V+C2+FUNCTIONRS-232 Driver InputsRS-232 Receiver OutputsRS-232 Receiver InputsRS-232 Transmitter OutputsGround+4.5V to +5.5V Supply-Voltage InputMake no connection to this pin.Connect pins together.-2VCCvoltage generated by the charge pump. Connect pins together.Make no connection to this pin.+2VCCvoltage generated by the charge pumpConnect pins together.MAX205E

PIN1–4, 195, 10, 13, 18, 246, 9, 14, 17, 237, 8, 15, 16, 2211122021NAMET_OUTR_INR_OUTT_INGNDVCCENSHDNFUNCTIONRS-232 Driver OutputsRS-232 Receiver InputsTTL/CMOS Receiver Outputs. All receivers are inactive in shutdown.TTL/CMOS Driver Inputs. Internal pull-ups to VCC.Ground+4.75V to +5.25V Supply VoltageReceiver Enable—active lowShutdown Control—active high6_______________________________________________________________________________________

±15kV ESD-Protected, +5V RS-232 Transceivers ________________________________________________Pin Descriptions (continued)MAX206E

PINNAMEFUNCTION1, 2, 3, 24T_OUTRS-232 Driver Outputs4, 16, 23R_INRS-232 Receiver Inputs5, 17, 22R_OUTTTL/CMOS Receiver Outputs. All receivers are inactive in shutdown.6, 7, 18, 19T_INTTL/CMOS Driver Inputs. Internal pull-ups to VCC.8GNDGround9VCC+4.5V to +5.5V Supply Voltage10, 12C1+, C1-Terminals for positive charge-pump capacitor11V++2VCCgenerated by the charge pump13, 14C2+, C2-Terminals for negative charge-pump capacitor15V--2VCCgenerated by the charge pump20ENReceiver Enable—active low21SHDNShutdown Control—active highMAX207E

PINNAMEFUNCTION1, 2, 3, 20, 24T_OUTRS-232 Driver Outputs4, 16, 23R_INRS-232 Receiver Inputs5, 17, 22R_OUTTTL/CMOS Receiver Outputs. All receivers are inactive in shutdown.6, 7, 18, 19, 21T_INTTL/CMOS Driver Inputs. Internal pull-ups to VCC.8GNDGround9VCC+4.75V to +5.25V Supply Voltage10, 12C1+, C1-Terminals for positive charge-pump capacitor11V++2VCCgenerated by the charge pump13, 14C2+, C2-Terminals for negative charge-pump capacitor15V--2VCCgenerated by the charge pumpMAX208E

PINNAMEFUNCTION1, 2, 20, 24T_OUTRS-232 Driver Outputs3, 7, 16, 23R_INRS-232 Receiver Inputs4, 6, 17, 22R_OUTTTL/CMOS Receiver Outputs. All receivers are inactive in shutdown.5, 18, 19, 21T_INTTL/CMOS Driver Inputs. Internal pull-ups to VCC.8GNDGround9VCC+4.5V to +5.5V Supply Voltage10, 12C1+, C1-Terminals for positive charge-pump capacitor11V++2VCCgenerated by the charge pump13, 14C2+, C2-Terminals for negative charge-pump capacitor15V--2VCCgenerated by the charge pump_______________________________________________________________________________________7

MAX202E–MAX213E, MAX232E/MAX241E±15kV ESD-Protected, +5V RS-232 Transceivers MAX202E–MAX213E, MAX232E/MAX241E________________________________________________Pin Descriptions (continued)MAX211E/MAX213E/MAX241E

PIN1, 2, 3, 284, 9, 18, 23, 275, 8, 19, 22, 266, 7, 20, 21101112, 141315, 16172425NAMET_OUTR_INR_OUTT_INGNDVCCC1+, C1-V+C2+, C2-V-ENENSHDNSHDNFUNCTIONRS-232 Driver OutputsRS-232 Receiver InputsTTL/CMOS Receiver Outputs. For the MAX213E, receivers R4 and R5 are active in shutdownmode when EN = 1. For the MAX211E and MAX241E, all receivers are inactive in shutdown.TTL/CMOS Driver Inputs. Only the MAX211E, MAX213E, and MAX241E have internal pull-ups to VCC.Ground+4.5V to +5.5V Supply VoltageTerminals for positive charge-pump capacitor+2VCCvoltage generated by the charge pumpTerminals for negative charge-pump capacitor-2VCCvoltage generated by the charge pumpReceiver Enable—active low (MAX211E, MAX241E)Receiver Enable—active high (MAX213E)Shutdown Control—active high (MAX211E, MAX241E)Shutdown Control—active low (MAX213E) ISHDN +5.5V0.1µF*C1+󰀀0.1µF*C1-󰀀 VCC V+0.1µF* V-RECEIVER󰀀OUTPUT󰀀CL = 150pF0.1µF*EN󰀀INPUT+3V0VOUTPUT ENABLE TIME+3.5V+0.8VMAX206E󰀀MAX213E󰀀MAX241E0.1µF*MAX211E󰀀C2+󰀀 VCCC2-T_IN400k +5.5VT1 TO T5T_OUT3kNOTE:POLARITY OF EN󰀀IS REVERSED󰀀FOR THE󰀀MAX213EEN󰀀INPUT0V+3VR_OUT0V OR +5.5V󰀀DRIVE+5.5V (0V)( ) ARE FOR MAX213E󰀀*1µF FOR MAX241EEN (EN)󰀀 R1 TO R5R_IN5k +5.5VOUTPUT DISABLE TIMEVOHVOLVOH - 0.1VRL = 1kΩVOL + 0.1V+2.5VRECEIVER󰀀OUTPUTSSHDN (SHDN)GNDCAPACITORS MAY BE 󰀀POLARIZED OR UNPOLARIZEDFigure 1. Shutdown-Current Test Circuit (MAX206E,MAX211E/MAX213E/MAX241E)8

Figure 2. Receiver Output Enable and Disable Timing(MAX205E/MAX206E/MAX211E/MAX213E/MAX241E)_______________________________________________________________________________________

±15kV ESD-Protected, +5V RS-232 Transceivers MAX202E–MAX213E, MAX232E/MAX241E +5V0.1µF*C1+󰀀0.1µF*C1-󰀀C2+󰀀 VCCC2-T_INR_R_OUT0V (+5V)0V (+5V)EN (EN)󰀀SHDN (SHDN)MINIMUM SLEW-RATE TEST CIRCUIT400kT_T_OUT3k2500pF VCC V+0.1µF*0.1µF* +5V0.1µF*C1+󰀀0.1µF*C1-󰀀C2+󰀀 VCCC2-T_IN400kT_T_OUT VCC V+0.1µF*0.1µF*MAX2_ _E V-0.1µF*MAX2_ _E V-0.1µF*R_IN5k R_R_OUT0V (+5V)0V (+5V)EN (EN)󰀀SHDN (SHDN)R_IN5k7k50pFMAXIMUM SLEW-RATE TEST CIRCUIT ( ) ARE FOR MAX213E󰀀 * 1µF FOR MAX232E/MAX241ETRANSMITTER INPUT PULL-UP RESISTORS, ENABLE, AND SHUTDOWN ARE NOT PROVIDED ON THE MAX202E, MAX203E, AND MAX232E.󰀀ENABLE AND SHUTDOWN ARE NOT PROVIDED ON THE MAX207E AND MAX208E.Figure 3. Transition Slew-Rate Circuit_______________Detailed DescriptionThe MAX202E–MAX213E, MAX232E/MAX241E consist ofthree sections: charge-pump voltage converters,drivers (transmitters), and receivers. These E versionsprovide extra protection against ESD. They survive±15kV dischargesto the RS-232 inputs andoutputs,testedusingthe Human Body Model. When testedaccording to IEC1000-4-2, they survive ±8kV contact-discharges and ±15kV air-gap discharges. The ruggedE versions are intended for use in harsh environmentsor applications where the RS-232 connection isfrequently changed (such as notebook computers). Thestandard (non-“E”) MAX202, MAX203, MAX205–MAX208, MAX211, MAX213, MAX232, and MAX241 arerecommended for applications where cost is critical.

into -10V, storing the -10V on the V- output filtercapacitor, C4.

In shutdown mode, V+ is internally connected to VCCbya 1kΩpull-down resistor, and V- is internally connectedto ground by a 1kΩpull-up resistor.

RS-232 DriversWith VCC= 5V, the typical driver output voltage swingis ±8V when loaded with a nominal 5kΩRS-232receiver. The output swing is guaranteed to meetEIA/TIA-232E and V.28 specifications that call for ±5Vminimum output levels under worst-case conditions.These include a 3kΩload, minimum VCC, andmaximum operating temperature. The open-circuitoutput voltage swings from (V+ - 0.6V) to V-.

Input thresholds are CMOS/TTL compatible. Theunused drivers’ inputs on the MAX205E–MAX208E,MAX211E, MAX213E, and MAX241E can be leftunconnected because 400kΩpull-up resistors to VCCare included on-chip. Since all drivers invert, the pull-up resistors force the unused drivers’ outputs low. TheMAX202E, MAX203E, and MAX232E do not have pull-up resistors on the transmitter inputs.

9

+5V to ±10V Dual Charge-PumpVoltage ConverterThe +5V to ±10V conversion is performed by dualcharge-pump voltage converters (Figure 4). The firstcharge-pump converter uses capacitor C1 to doublethe +5V into +10V, storing the +10V on the output filtercapacitor, C3. The second uses C2 to invert the +10V

_______________________________________________________________________________________

±15kV ESD-Protected, +5V RS-232 Transceivers MAX202E–MAX213E, MAX232E/MAX241EWhen in low-power shutdown mode, the MAX205E/MAX206E/MAX211E/MAX213E/MAX241E driver outputsare turned off and draw only leakage currents—even ifthey are back-driven with voltages between 0V and12V. Below -0.5V in shutdown, the transmitter output isdiode-clamped to ground with a 1kΩseriesimpedance.

Shutdown and Enable Control(MAX205E/MAX206E/MAX211E/MAX213E/MAX241E)In shutdown mode, the charge pumps are turned off,V+ is pulled down to VCC, V- is pulled to ground, andthe transmitter outputs are disabled. This reducessupply current typically to 1µA (15µA for the MAX213E).The time required to exit shutdown is under 1ms, asshown in Figure 5.

RS-232 ReceiversThe receivers convert the RS-232 signals to CMOS-logicoutput levels. The guaranteed 0.8V and 2.4V receiverinput thresholds are significantly tighter than the ±3Vthresholds required by the EIA/TIA-232E specification.This allows the receiver inputs torespond to TTL/CMOS-logic levels, as well as RS-232 levels.

The guaranteed 0.8V input low threshold ensures thatreceivers shorted to ground have a logic 1 output. The5kΩinput resistance to ground ensures that a receiverwith its input left open will also have a logic 1 output. Receiver inputs have approximately 0.5V hysteresis.This provides clean output transitions, even with slowrise/fall-time signals with moderate amounts of noiseand ringing.

In shutdown, the MAX213E’s R4 and R5 receivers haveno hysteresis.

ReceiversAll MAX213E receivers, except R4 and R5, are put intoa high-impedance state in shutdown mode (see Tables1a and 1b). The MAX213E’s R4 and R5 receivers stillfunction in shutdown mode. These two awake-in-shutdown receivers can monitor external activity whilemaintaining minimal power consumption.

The enable control is used to put the receiver outputs intoa high-impedance state, to allow wire-OR connection oftwo EIA/TIA-232E ports (or ports of different types) at theUART. It has no effect on the RS-232 drivers or thecharge pumps.

Note: The enable control pin is active low for theMAX211E/MAX241E (EN), but is active high for theMAX213E (EN). The shutdown control pin is active highfor the MAX205E/MAX206E/MAX211E/MAX241E(SHDN), but is active low for the MAX213E (SHDN).

V+VCCS1C1+C1S2C3S5C2+S6C2C4S8C2-V -GNDIL-RL-IL +RL +GNDS3C1-S4VCCS7fCLKPARTMAX202EMAX203EMAX205E–208EMAX211E/213EMAX232EMAX241EfCLK(kHz)23023020020014030Figure 4. Charge-Pump Diagram10______________________________________________________________________________________

±15kV ESD-Protected, +5V RS-232 Transceivers The MAX213E’s receiver propagation delay is typically0.5µs in normal operation. In shutdown mode,propagation delay increases to 4µs for both rising andfalling transitions. The MAX213E’s receiver inputs haveapproximately 0.5V hysteresis, except in shutdown,when receivers R4 and R5 have no hysteresis.

When entering shutdown with receivers active, R4 andR5 are not valid until 80µs after SHDNis driven low.When coming out of shutdown, all receiver outputs areinvalid until the charge pumps reach nominal voltagelevels (less than 2ms when using 0.1µF capacitors).

MAX202E–MAX213E, MAX232E/MAX241EMAX211E

3V0V10V5V0V-5V-10V

V-V+SHDN

±15kV ESD ProtectionAs with all Maxim devices, ESD-protection structuresare incorporated on all pins to protect againstelectrostatic discharges encountered during handlingand assembly. The driver outputs and receiver inputshave extra protection against static electricity. Maxim’sengineers developed state-of-the-art structures toprotect these pins against ESD of ±15kV withoutdamage. The ESD structures withstand high ESD in allstates: normal operation, shutdown, and powereddown. After an ESD event, Maxim’s Eversions keepworking without latchup, whereas competing RS-232products can latch and must be powered down toremove latchup.

ESD protection can be tested in various ways; thetransmitter outputs and receiver inputs of this productfamily are characterized for protection to the followinglimits:

1)±15kV using the Human Body Model

2)±8kV using the contact-discharge method specified

in IEC1000-4-2

3)±15kV using IEC1000-4-2’s air-gap method.

200µs/div

Figure 5. MAX211E V+ and V- when Exiting Shutdown (0.1µFcapacitors)Table 1a. MAX205E/MAX206E/MAX211E/MAX241E Control Pin Configurations

SHDNEN001

01X

OPERATIONSTATUSNormalOperationNormalOperationShutdown

TxAll ActiveAll ActiveAll High-Z

RxAll ActiveAll High-ZAll High-Z

X = Don't CareESD Test ConditionsESD performance depends on a variety of conditions.Contact Maxim for a reliability report that documentstest set-up, test methodology, and test results.

Human Body ModelFigure 6a shows the Human Body Model, and Figure6b shows the current waveform it generates whendischarged into a low impedance. This model consistsof a 100pF capacitor charged to the ESD voltage ofinterest, which is then discharged into the test devicethrough a 1.5kΩresistor.

Table 1b. MAX213E Control PinConfigurations

SHDN0011

EN0101

OPERATIONSTATUSShutdownShutdownNormalOperationNormalOperation

Tx 1–4All High-ZAll High-ZAll ActiveAll Active

Rx1–3High-ZHigh-ZHigh-ZActive

4, 5High-ZActive*High-ZActive

*Active = active with reduced performance______________________________________________________________________________________11

±15kV ESD-Protected, +5V RS-232 Transceivers MAX202E–MAX213E, MAX232E/MAX241ERC 1MCHARGE-CURRENT󰀀LIMIT RESISTORHIGH-󰀀VOLTAGE󰀀DC󰀀SOURCERD 1500ΩDISCHARGE󰀀RESISTANCEDEVICE󰀀UNDER󰀀TESTHIGH- 󰀀VOLTAGE󰀀DC󰀀SOURCERC 50M to 100MCHARGE CURRENT󰀀LIMIT RESISTORRD 330ΩDISCHARGE󰀀RESISTANCEDEVICE󰀀UNDER󰀀TESTCs100pFSTORAGE󰀀CAPACITORCs150pFSTORAGE󰀀CAPACITORFigure 6a. Human Body ESD Test ModelFigure 7a. IEC1000-4-2 ESD Test ModelIIP 100%󰀀90%AMPERES36.8%10%󰀀00tRLTIMEtDLCURRENT WAVEFORMIPEAKIrPEAK-TO-PEAK RINGING󰀀(NOT DRAWN TO SCALE)100%90%10%tr = 0.7ns to 1nst30ns60nsFigure 6b. Human Body Model Current WaveformIEC1000-4-2The IEC1000-4-2 standard covers ESD testing andperformance of finished equipment; it does notspecifically refer to integrated circuits. TheMAX202E/MAX203E–MAX213E, MAX232E/MAX241Ehelp you design equipment that meets level 4 (thehighest level) of IEC1000-4-2, without the need foradditional ESD-protection components.

The major difference between tests done using theHuman Body Model and IEC1000-4-2 is higher peakcurrent in IEC1000-4-2, because series resistance islower in the IEC1000-4-2 model. Hence, the ESDwithstand voltage measured to IEC1000-4-2 isgenerally lower than that measured using the HumanBody Model. Figure 7b shows the current waveform forthe 8kV IEC1000-4-2 level-four ESD contact-dischargetest.

12

Figure 7b. IEC1000-4-2 ESD Generator Current WaveformThe air-gap test involves approaching the device with acharged probe. The contact-discharge methodconnects the probe to the device before the probe isenergized.

Machine ModelThe Machine Model for ESD tests all pins using a200pF storage capacitor and zero dischargeresistance. Its objective is to emulate the stress causedby contact that occurs with handling and assemblyduring manufacturing. Of course, all pins require thisprotection during manufacturing, not just RS-232 inputsand outputs. Therefore,after PC board assembly,theMachine Model is less relevant to I/O ports.

______________________________________________________________________________________

±15kV ESD-Protected, +5V RS-232 Transceivers __________Applications InformationCapacitor SelectionThe capacitor type used for C1–C4 is not critical forproper operation. The MAX202E, MAX206–MAX208E,MAX211E, and MAX213E require 0.1µF capacitors,and the MAX232E and MAX241E require 1µFcapacitors, although in all cases capacitors up to 10µFcan be used without harm. Ceramic, aluminum-electrolytic, or tantalum capacitors are suggested forthe 1µF capacitors, and ceramic dielectrics aresuggested for the 0.1µF capacitors. When using theminimum recommended capacitor values, make surethe capacitance value does not degrade excessivelyas the operating temperature varies. If in doubt, usecapacitors with a larger (e.g., 2x) nominal value. Thecapacitors’ effective series resistance (ESR), whichusually rises at low temperatures, influences theamount of ripple on V+ and V-.

Use larger capacitors (up to 10µF) to reduce the outputimpedance at V+ and V-. This can be useful when“stealing” power from V+ or from V-. The MAX203E andMAX205E have internal charge-pump capacitors.

Bypass VCCto ground with at least 0.1µF. Inapplications sensitive to power-supply noise generatedby the charge pumps, decouple VCCto ground with a

capacitor the same size as (or larger than) the charge-pump capacitors (C1–C4).

MAX202E–MAX213E, MAX232E/MAX241EV+ and V- as Power SuppliesA small amount of power can be drawn from V+ and V-,although this will reduce both driver output swing andnoise margins. Increasing the value of the charge-pumpcapacitors (up to 10µF) helps maintain performancewhen power is drawn from V+ or V-.

Driving Multiple ReceiversEach transmitter is designed to drive a single receiver.Transmitters can be paralleled to drive multiplereceivers.

Driver Outputs when Exiting ShutdownThe driver outputs display no ringing or undesirabletransients as they come out of shutdown.

High Data RatesThese transceivers maintain the RS-232 ±5.0Vminimum driver output voltages at data rates of over120kbps. For data rates above 120kbps, refer to theTransmitter Output Voltage vs. Load Capacitancegraphs in the Typical Operating Characteristics.Communication at these high rates is easier if thecapacitive loads on the transmitters are small; i.e.,short cables are best.

Table 2. Summary of EIA/TIA-232E, V.28 Specifications

PARAMETER

0 Level1 Level

CONDITIONS

3kΩto 7kΩload3kΩto 7kΩloadNo load

3kΩ≤RL≤7kΩ, CL≤2500pF

0 Level1 Level

EIA/TIA-232E, V.28SPECIFICATIONS+5V to +15V-5V to -15V±25VUp to 20kbps+3V to +15V-3V to -15V±25V

3kΩ≤RL≤7kΩ, CL≤2500pF

30V/µs100mA

V.28EIA/TIA-232E-2V < VOUT< +2V

1ms or 3% of the period4% of the period300Ω

Driver Output VoltageDriver Output Level, MaxData Rate

Receiver Input VoltageReceiver Input Level

Instantaneous Slew Rate, Max

Driver Output Short-Circuit Current, Max Transition Rate on Driver Output Driver Output Resistance

______________________________________________________________________________________13

±15kV ESD-Protected, +5V RS-232 Transceivers MAX202E–MAX213E, MAX232E/MAX241ETable 3. DB9 Cable Connections

Commonly Used for EIA/TIAE-232E andV.24 Asynchronous Interfaces

PINCONNECTIONReceived Line SignalDetector (sometimescalled Carrier Detect,DCD)Receive Data (RD)Transmit Data (TD)Data Terminal ReadySignal GroundData Set Ready (DSR)Request to Send (RTS)Clear to Send (CTS)Ring Indicator1Handshake from DCE23456789Data from DCEData from DTEHandshake from DTEReference point forsignalsHandshake from DCEHandshake from DTEHandshake from DCEHandshake from DCE____________Pin Configurations and Typical Operating Circuits (continued)TOP VIEW+5V INPUT0.1µF1610.1µF*󰀀6.3VC1+1V+2C1-3C2+4C2-5V-6T2OUT7R2IN816VCC15GND14T1OUT0.1µF*󰀀16V345C1+VCC+5V TO +10V󰀀C1-VOLTAGE DOUBLERC2++10V TO -10V󰀀C2-VOLTAGE INVERTERV+2+10V-10V0.1µF*󰀀16V0.1µF*󰀀6.3VV-6MAX202E󰀀MAX232E13R1IN12R1OUT11T1IN10T2IN9R2OUTTTL/CMOS󰀀OUTPUTSTTL/CMOS󰀀INPUTS11T1INT1T1OUT14RS-232 󰀀OUTPUTS10T2INT2T2OUT712R1OUTR15kR1IN13RS-232󰀀INPUTSDIP/SO9R2OUTR25kR2IN8PIN NUMBERS ON TYPICAL OPERATING CIRCUIT REFER TO DIP/SO PACKAGE, NOT LCC. 󰀀 * 1.0µF CAPACITORS, MAX232E ONLY.󰀀GND1514______________________________________________________________________________________±15kV ESD-Protected, +5V RS-232 Transceivers ____________Pin Configurations and Typical Operating Circuits (continued)+5V INPUT0.1µF7VCC400kT2IN1T1IN2R1OUT3R1IN4T1OUT5GND620R2OUT19R2IN18T2OUT17V-TTL/CMOS󰀀INPUTS13TTL/CMOS󰀀OUTPUTS20R2OUTR2T2INR1OUT2T1IN+5V400kT2R1T2OUTR1IN5kR2IN5kDO NOT MAKE󰀀CONNECTION TO󰀀THESE PINSINTERNAL -10V󰀀POWER SUPPLYINTERNAL +10V󰀀POWER SUPPLYPIN NUMBERS IN ( ) ARE FOR SO PACKAGE.8(13)13(14)12(10)1714(8)C1+C1-V-V-V+GND6GND9C2+C2+C2-C2-11(12)151610(11)19184RS-232󰀀INPUTST1T1OUT5RS-232 󰀀OUTPUTSMAX202E–MAX213E, MAX232E/MAX241ETOP VIEW+5VMAX203E16C2-15C2+14V+ (C1-)13C1- (C1+)12V- (C2+)11C2+ (C2-)VCC7C1+ (V+)8GND9C2- (V-)10DIP/SO______________________________________________________________________________________15

±15kV ESD-Protected, +5V RS-232 Transceivers MAX202E–MAX213E, MAX232E/MAX241E____________Pin Configurations and Typical Operating Circuits (continued)TOP VIEW0.1µF +5V INPUT12 VCC +5V400k8󰀀T1IN +5V400k7󰀀T2IN +5V400kT4OUT󰀀T3OUT󰀀T1OUT󰀀T2OUT󰀀R2IN󰀀R2OUT󰀀T2IN󰀀T1IN󰀀R1OUT󰀀R1IN󰀀GNDVCC1󰀀2󰀀3󰀀4󰀀5󰀀6󰀀7󰀀8󰀀9󰀀10󰀀11󰀀1224󰀀R3IN󰀀23󰀀R3OUT󰀀22󰀀T5IN󰀀21󰀀SHDN󰀀20󰀀EN󰀀16󰀀T4IN +5V400k22T5IN9R1OUTT5R1T5OUT19R1IN105k6R2OUTR2IN55kTTL/CMOS󰀀INPUTS15󰀀T3IN +5V400kT4T4OUT1T3T3OUT2RS-232󰀀OUTPUTST2T2OUT4T1T1OUT3MAX205E19󰀀T5OUT󰀀18󰀀R4IN󰀀17󰀀R4OUT󰀀16󰀀T4IN󰀀15󰀀T3IN󰀀14󰀀R5OUT󰀀13R5INR2DIPTTL/CMOS󰀀OUTPUTS23R3OUTR3R3IN245k17R4OUTR4IN185k14R5OUTR5IN135k20ENGND1121RS-232󰀀INPUTSR4R5SHDN 16______________________________________________________________________________________±15kV ESD-Protected, +5V RS-232 Transceivers ____________Pin Configurations and Typical Operating Circuits (continued)TOP VIEW +5V INPUT0.1µF0.1µF6.3V910󰀀 VCCC1+󰀀 V+11󰀀0.1µF12+5V TO +10V󰀀6.3VC1-VOLTAGE DOUBLER0.1µF13󰀀C2+󰀀16V0.1µF14+10V TO -10V󰀀 V-1516VC2-VOLTAGE INVERTER +5V400kT3OUT󰀀1󰀀24󰀀T4OUT󰀀7󰀀T1INT1OUT󰀀2󰀀23󰀀R2IN󰀀T1T1OUT2 +5VT2OUT󰀀3󰀀22󰀀R2OUT󰀀400kR1IN󰀀4󰀀21󰀀SHDN󰀀6󰀀T2INT2T2OUT3R1OUT󰀀5󰀀20󰀀EN󰀀TTL/CMOS󰀀 +5VRS-232󰀀T2IN󰀀6󰀀MAX206E19󰀀T4IN󰀀INPUTS400kOUTPUTST1IN󰀀7󰀀18󰀀T3IN󰀀18󰀀T3INT3T3OUT1GND󰀀8󰀀17󰀀R3OUT󰀀 +5VVCC9󰀀16󰀀R3IN󰀀400kC1+󰀀10󰀀15󰀀V-󰀀19T4INT4T4OUT24V+11󰀀14󰀀C2-󰀀5R1OUTC1-1213C2+R1R1IN45kDIP/SO/SSOPTTL/CMOS󰀀22R2OUTR2IN23OUTPUTSR2RS-232󰀀INPUTS5k17R3OUTR3R3IN165k20ENSHDN 21GND8______________________________________________________________________________________17MAX202E–MAX213E, MAX232E/MAX241E±15kV ESD-Protected, +5V RS-232 Transceivers MAX202E–MAX213E, MAX232E/MAX241E____________Pin Configurations and Typical Operating Circuits (continued) +5V INPUT0.1µF9 VCCC1+󰀀+5V TO +10V󰀀VOLTAGE DOUBLER+10V TO -10V󰀀VOLTAGE INVERTER V-15 V+0.1µF6.3VTOP VIEW10󰀀0.1µF6.3V0.1µF16V11󰀀0.1µF16V12C1-13󰀀C2+󰀀14C2- +5V400k7󰀀T1IN +5V400kT3OUT󰀀T1OUT󰀀T2OUT󰀀R1IN󰀀R1OUT󰀀T2IN󰀀T1IN󰀀GND󰀀VCCC1+󰀀V+C1-1󰀀2󰀀3󰀀4󰀀5󰀀6󰀀7󰀀8󰀀9󰀀10󰀀11󰀀1224󰀀T4OUT󰀀23󰀀R2IN󰀀22󰀀R2OUT󰀀21󰀀T5IN󰀀20󰀀T5OUT󰀀TTL/CMOS󰀀INPUTS18󰀀T3IN +5V400k19󰀀T4IN +5V400k21T5IN5R1OUTT5R1T5OUT20R1IN45k22R2OUTR2IN235k17R3OUTR3IN165kRS-232󰀀INPUTST4T4OUT246󰀀T2IN +5V400kT3T3OUT1RS-232󰀀OUTPUTST2T2OUT3T1T1OUT2MAX207E19󰀀T4IN󰀀18󰀀T3IN󰀀17󰀀R3OUT󰀀16󰀀R3IN󰀀15󰀀V-󰀀14󰀀C2-󰀀13C2+DIP/SO/SSOPTTL/CMOS󰀀OUTPUTSR2R3GND818______________________________________________________________________________________±15kV ESD-Protected, +5V RS-232 Transceivers MAX202E–MAX213E, MAX232E/MAX241E____________Pin Configurations and Typical Operating Circuits (continued)TOP VIEW +5V INPUT0.1µF9 VCCC1+󰀀+5V TO +10V󰀀VOLTAGE DOUBLER+10V TO -10V󰀀VOLTAGE INVERTER400k5󰀀T1INT2OUT󰀀T1OUT󰀀R2IN󰀀R2OUT󰀀T1IN󰀀R1OUT󰀀R1IN󰀀GND󰀀VCCC1+󰀀V+C1-1󰀀2󰀀3󰀀4󰀀5󰀀6󰀀7󰀀8󰀀9󰀀10󰀀11󰀀1224󰀀T3OUT󰀀23󰀀R3IN󰀀22󰀀R3OUT󰀀21󰀀T4IN󰀀20󰀀T4OUT󰀀TTL/CMOS󰀀INPUTS +5V400k18󰀀T2IN +5V400k19󰀀T3IN +5V400k21T4IN6R1OUTT4R1T4OUT20R1IN75k4R2OUTR2IN35k22R3OUTR3IN235k17R4OUTR4IN165kGND8RS-232󰀀INPUTST3T3OUT24T2T2OUT1RS-232󰀀OUTPUTST1T1OUT2 V-15 V+0.1µF6.3V10󰀀0.1µF6.3V0.1µF16V11󰀀0.1µF16V12C1-13󰀀C2+󰀀14C2- +5VMAX208E19󰀀T3IN󰀀18󰀀T2IN󰀀17󰀀R4OUT󰀀16󰀀R4IN󰀀15󰀀V-󰀀14󰀀C2-󰀀13C2+R2DIP/SO/SSOPTTL/CMOS󰀀OUTPUTSR3R4______________________________________________________________________________________19±15kV ESD-Protected, +5V RS-232 Transceivers MAX202E–MAX213E, MAX232E/MAX241E____________Pin Configurations and Typical Operating Circuits (continued) +5V INPUT0.1µF*󰀀6.3VTOP VIEW0.1µF12󰀀0.1µF*󰀀6.3V0.1µF*󰀀16VC1+󰀀11 VCC+5V TO +10V󰀀VOLTAGE DOUBLER+10V TO -10V󰀀VOLTAGE INVERTER400k7󰀀T1IN +5V400kT3OUT󰀀T1OUT󰀀T2OUT󰀀R2IN󰀀R2OUT󰀀T2IN󰀀T1IN󰀀R1OUT󰀀R1IN󰀀GND󰀀VCC󰀀C1+󰀀V+󰀀C1-1󰀀2󰀀3󰀀4󰀀5󰀀6󰀀7󰀀8󰀀9󰀀10󰀀11󰀀12󰀀13󰀀1428󰀀T4OUT󰀀27󰀀R3IN󰀀26󰀀R3OUT󰀀25󰀀SHDN (SHDN)󰀀24󰀀EN (EN)󰀀TTL/CMOS󰀀INPUTS6󰀀T2IN +5V400k20󰀀T3IN +5V400k21T4IN8R1OUTT4R1T4OUT28R1IN95k5R2OUTR2IN45kTTL/CMOS󰀀OUTPUTS26R3OUTR3IN275k22R4OUTR4IN235k19R5OUT( ) ARE FOR MAX213E ONLY󰀀 * 1.0µF CAPACITORS, MAX241E ONLY24EN (EN)GND105k25R5IN18T3T3OUT1T2T2OUT3T1T1OUT2 V-1713󰀀 V+14C1-15󰀀C2+󰀀16C2- +5V0.1µF*󰀀16VRS-232󰀀OUTPUTSMAX211E󰀀MAX213E󰀀MAX241E23󰀀R4IN󰀀22󰀀R4OUT󰀀21󰀀T4IN󰀀20󰀀T3IN󰀀19󰀀R5OUT󰀀18󰀀R5IN󰀀17󰀀V-󰀀16󰀀C2-󰀀15C2+R2R3RS-232󰀀INPUTSSO/SSOPR4R5SHDN (SHDN)20______________________________________________________________________________________±15kV ESD-Protected, +5V RS-232 Transceivers ________________________________________________________Ordering Information PARTMAX202ECPEMAX202ECSEMAX202ECWEMAX202EC/DMAX202EEPEMAX202EESEMAX202EEWEMAX203ECPPMAX203ECWPMAX203EEPPMAX203EEWPMAX205ECPGMAX205EEPGMAX206ECNGMAX206ECWGMAX206ECAGMAX206EENGMAX206EEWGMAX206EEAGMAX207ECNGMAX207ECWGMAX207ECAGMAX207EENGMAX207EEWGMAX207EEAGTEMP. RANGE0°C to +70°C0°C to +70°C0°C to +70°C0°C to +70°C-40°C to +85°C-40°C to +85°C-40°C to +85°C0°C to +70°C0°C to +70°C-40°C to +85°C-40°C to +85°C0°C to +70°C-40°C to +85°C0°C to +70°C0°C to +70°C0°C to +70°C-40°C to +85°C-40°C to +85°C-40°C to +85°C0°C to +70°C0°C to +70°C0°C to +70°C-40°C to +85°C-40°C to +85°C-40°C to +85°CPIN-PACKAGE16 Plastic DIP16 Narrow SO16 Wide SODice*16 Plastic DIP16 Narrow SO16 Wide SO20 Plastic DIP20 SO20 Plastic DIP20 SO24 Wide Plastic DIP24 Wide Plastic DIP24 Narrow Plastic DIP24 SO24 SSOP24 Narrow Plastic DIP24 SO24 SSOP24 Narrow Plastic DIP24 SO24 SSOP24 Narrow Plastic DIP24 SO24 SSOPPARTMAX208ECNGMAX208ECWGMAX208ECAGMAX208EENGMAX208EEWGMAX208EEAGMAX211ECWIMAX211ECAIMAX211EEWIMAX211EEAIMAX213ECWIMAX213ECAIMAX213EEWIMAX213EEAIMAX232ECPEMAX232ECSEMAX232ECWEMAX232EC/DMAX232EEPEMAX232EESEMAX232EEWEMAX241ECWIMAX241ECAIMAX241EEWIMAX241EEAITEMP. RANGE0°C to +70°C0°C to +70°C0°C to +70°C-40°C to +85°C-40°C to +85°C-40°C to +85°C0°C to +70°C0°C to +70°C-40°C to +85°C-40°C to +85°C0°C to +70°C0°C to +70°C-40°C to +85°C-40°C to +85°C0°C to +70°C0°C to +70°C0°C to +70°C0°C to +70°C-40°C to +85°C-40°C to +85°C-40°C to +85°C0°C to +70°C0°C to +70°C-40°C to +85°C-40°C to +85°CPIN-PACKAGE24 Narrow Plastic DIP24 SO24 SSOP24 Narrow Plastic DIP24 SO24 SSOP28 SO28 SSOP28 SO28 SSOP28 SO28 SSOP28 SO28 SSOP16 Plastic DIP16 Narrow SO16 Wide SODice*16 Plastic DIP16 Narrow SO16 Wide SO28 SO28 SSOP28 SO28 SSOPMAX202E–MAX213E, MAX232E/MAX241E*Dice are specified at TA= +25°C.______________________________________________________________________________________21

±15kV ESD-Protected, +5V RS-232 Transceivers MAX202E–MAX213E, MAX232E/MAX241E__________________________________________________________Chip TopographiesMAX202E/MAX232E

MAX211E/MAX213E/MAX241E

V+C1+ C1-C2+ C2- V-VCCGNDT1OUTT4OUT R3INT2OUTT3OUT R3OUT SHDN (SHDN) R2IN R2OUT T2IN0.117\"󰀀(2.972mm) R1OUT R1IN GND R1OUT T1IN T1INT1OUT R1IN EN (EN) R4IN R4OUT T4IN T3IN R5OUT R5IN0.174\"󰀀(4.420mm)R2IN T2OUTT2INR2OUTVCCC1+V+C1-C2+0.188\"󰀀(4.775mm)C2-V-0.080\"󰀀(2.032mm)( ) ARE FOR MAX213E ONLYTRANSISTOR COUNT: 123

SUBSTRATE CONNECTED TO GND

TRANSISTOR COUNT: 542

SUBSTRATE CONNECTED TO GND

___________________Chip InformationMAX205E/MAX206E/MAX207E/MAX208ETRANSISTOR COUNT: 328

SUBSTRATE CONNECTED TO GND

22______________________________________________________________________________________

±15kV ESD-Protected, +5V RS-232 Transceivers ________________________________________________________Package InformationEDIM󰀀INCHESMILLIMETERSMIN󰀀MAX󰀀MIN󰀀MAX󰀀DE1A󰀀–󰀀0.200󰀀–󰀀5.08󰀀A1󰀀0.015󰀀–󰀀0.38󰀀–󰀀A3A2󰀀0.125󰀀0.175󰀀3.18󰀀4.45󰀀AA2A3󰀀0.055󰀀0.080󰀀1.40󰀀2.03󰀀B󰀀0.016󰀀0.022󰀀0.41󰀀0.56󰀀B1󰀀0.045󰀀0.065󰀀1.14󰀀1.65󰀀C󰀀0.008󰀀0.012󰀀0.20󰀀0.30󰀀LA10° - 15°D1󰀀0.005󰀀0.080󰀀0.13󰀀2.03󰀀E󰀀0.300󰀀0.325󰀀7.62󰀀8.26󰀀eCE1󰀀0.240󰀀0.310󰀀6.10󰀀7.87󰀀B1eAe󰀀0.100󰀀–󰀀2.54󰀀–󰀀BeBeA󰀀0.300󰀀–󰀀7.62󰀀–󰀀eB󰀀–󰀀0.400󰀀–󰀀10.16󰀀D1L0.1150.1502.923.81MILLIMETERSPlastic DIP󰀀PKG.󰀀INCHESPLASTIC󰀀DIM󰀀PINSMIN󰀀MAX󰀀MIN󰀀MAX󰀀P󰀀D󰀀8󰀀0.348󰀀0.390󰀀8.84󰀀9.91󰀀DUAL-IN-LINE󰀀P󰀀D󰀀14󰀀0.735󰀀0.765󰀀18.67󰀀19.43󰀀PACKAGE󰀀P󰀀D󰀀16󰀀0.745󰀀0.765󰀀18.92󰀀19.43󰀀(0.300 in.)P󰀀D󰀀18󰀀0.885󰀀0.915󰀀22.48󰀀23.24󰀀P󰀀D󰀀20󰀀1.015󰀀1.045󰀀25.78󰀀26.54󰀀ND241.141.26528.9632.1321-0043ADIM󰀀INCHESMILLIMETERSMIN󰀀MAX󰀀MIN󰀀MAX󰀀A󰀀0.068󰀀0.078󰀀1.73󰀀1.99󰀀A1󰀀0.002󰀀0.008󰀀0.05󰀀0.21󰀀B󰀀0.010󰀀0.015󰀀0.25󰀀0.38󰀀C󰀀0.004󰀀0.008󰀀0.09󰀀0.20󰀀αD󰀀SEE VARIATIONSEHE󰀀0.205󰀀0.209󰀀5.20󰀀5.38󰀀e󰀀0.0256 BSC0.65 BSCH󰀀0.301󰀀0.311󰀀7.65󰀀7.90󰀀CL0.025󰀀0.037󰀀0.63󰀀0.95󰀀Lα0˚8˚0˚8˚ DIM󰀀PINS󰀀INCHESMILLIMETERSMIN󰀀MAX󰀀MIN󰀀MAX󰀀e SSOP󰀀D󰀀14󰀀0.239󰀀0.249󰀀6.07󰀀6.33󰀀D󰀀16󰀀0.239󰀀0.249󰀀6.07󰀀6.33󰀀ASHRINK󰀀D󰀀20󰀀0.278󰀀0.289󰀀7.07󰀀7.33󰀀SMALL-OUTLINE󰀀D󰀀24󰀀0.317󰀀0.328󰀀8.07󰀀8.33󰀀D280.3970.40710.0710.33BA1PACKAGE21-0056AD______________________________________________________________________________________23MAX202E–MAX213E, MAX232E/MAX241E±15kV ESD-Protected, +5V RS-232 TransceiversMAX202E–MAX213E, MAX232E/MAX241E___________________________________________Package Information (continued)DIM󰀀A󰀀A1󰀀B󰀀C󰀀E󰀀e󰀀H󰀀LINCHESMAX󰀀MIN󰀀0.104󰀀0.093󰀀0.012󰀀0.004󰀀0.019󰀀0.014󰀀0.013󰀀0.009󰀀0.299󰀀0.291󰀀0.0500.419󰀀0.394󰀀0.0500.016MILLIMETERSMIN󰀀MAX󰀀2.35󰀀2.65󰀀0.10󰀀0.30󰀀0.35󰀀0.49󰀀0.23󰀀0.32󰀀7.40󰀀7.60󰀀1.2710.00󰀀10.65󰀀0.401.27DAeB0.101mm󰀀0.004in.0°- 8°A1CLEHWide SO󰀀SMALL-OUTLINE󰀀PACKAGE󰀀(0.300 in.)DIM󰀀D󰀀D󰀀D󰀀D󰀀DPINS16󰀀18󰀀20󰀀24󰀀28INCHESMIN󰀀MAX󰀀0.398󰀀0.413󰀀0.447󰀀0.463󰀀0.496󰀀0.512󰀀0.598󰀀0.614󰀀0.6970.713MILLIMETERSMIN󰀀MAX󰀀10.10󰀀10.50󰀀11.35󰀀11.75󰀀12.60󰀀13.00󰀀15.20󰀀15.60󰀀17.7018.1021-0042AMaxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses areimplied. Maxim reserves the right to change the circuitry and specifications without notice at any time.24__________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600©1996 Maxim Integrated Products

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