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MAX232, MAX232I DUAL EIA-232 DRIVERS/RECEIVERS
SLLS047I – FEBRUARY 1989 – REVISED OCTOBER 2002

D D D D D D D D D

Meet or Exceed TIA/EIA-232-F and ITU Recommendation V.28 Operate With Single 5-V Power Supply Operate Up to 120 kbit/s Two Drivers and Two Receivers ±30-V Input Levels Low Supply Current . . . 8 mA Typical Designed to be Interchangeable With Maxim MAX232 ESD Protection ExceedsJESD 22 – 2000-V Human-Body Model (A114-A) Applications TIA/EIA-232-F Battery-Powered Systems Terminals Modems Computers

MAX232 . . . D, DW, N, OR NS PACKAGE MAX232I . . . D, DW, OR N PACKAGE (TOP VIEW)

C1+ VS+ C1– C2+ C2– VS– T2OUT R2IN

1 2 3 4 5 6 7 8

16 15 14 13 12 11 10 9

VCC GND T1OUT R1IN R1OUT T1IN T2IN R2OUT

description/ordering information
The MAX232 is a dualdriver/receiver that includes a capacitive voltage generator to supply EIA-232 voltage levels from a single 5-V supply. Each receiver converts EIA-232 inputs to 5-V TTL/CMOS levels. These receivers have a typical threshold of 1.3 V and a typical hysteresis of 0.5 V, and can accept ±30-V inputs. Each driver converts TTL/CMOS input levels into EIA-232 levels. The driver, receiver, and voltage-generatorfunctions are available as cells in the Texas Instruments LinASIC library. ORDERING INFORMATION
TA PDIP (N) SOIC (D) 0°C to 70°C SOIC (DW) SOP (NS) PDIP (N) –40°C to 85°C SOIC (D) SOIC (DW) PACKAGE† Tube Tube Tape and reel Tube Tape and reel Tape and reel Tube Tube Tape and reel Tube Tape and reel ORDERABLE PART NUMBER MAX232N MAX232D MAX232DR MAX232DW MAX232DWR MAX232NSR MAX232IN MAX232ID MAX232IDRMAX232IDW MAX232IDWR TOP-SIDE MARKING MAX232N MAX232 MAX232 MAX232 MAX232IN MAX232I MAX232I

† Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductorproducts and disclaimers thereto appears at the end of this data sheet. LinASIC is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.

Copyright  2002, Texas Instruments IncorporatedPOST OFFICE BOX 655303

• DALLAS, TEXAS 75265

1

MAX232, MAX232I DUAL EIA-232 DRIVERS/RECEIVERS
SLLS047I – FEBRUARY 1989 – REVISED OCTOBER 2002

Function Tables
EACH DRIVER INPUT TIN L H OUTPUT TOUT H L

H = high level, L = low level EACH RECEIVER INPUT RIN L H OUTPUT ROUT H L

H = high level, L = low level

logic diagram (positive logic)
11 T1IN 10 T2IN 12 R1OUT 9 R2OUT 8 R2IN 13R1IN 7 T2OUT 14 T1OUT

2

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

MAX232, MAX232I DUAL EIA-232 DRIVERS/RECEIVERS
SLLS047I – FEBRUARY 1989 – REVISED OCTOBER 2002

absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†
Input supply voltage range, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . –0.3 V to 6 V Positive output supply voltage range, VS+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VCC – 0.3 V to 15 V Negative output supply voltage range, VS– . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to –15 V Input voltage range, VI: Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . –0.3 V to VCC + 0.3 V Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±30 V Output voltage range, VO: T1OUT, T2OUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VS– – 0.3 V to VS+ + 0.3 V R1OUT, R2OUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....
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