Texas Instruments MAX232DWR, MAX232DW, MAX232DR, MAX232D, MAX232NS Datasheet

logic symbol

†

†

This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC
Publication 617-12.

2VCC – 1.5 V

–2VCC + 1.5 V

2

6

14

7

13

8

C1+
C1–
C2+
C2–

1
3
4
5

11

10

12

9

GND

15

0 V

V

CC

16

V

CC

C1+
C1–
C2+
C2–

T1IN

T2IN

R1OUT

R2OUT

T1OUT

T2OUT

R1IN

R2IN

V

S+

V

S–

MAX232, MAX232I

DUAL EIA-232 DRIVER/RECEIVER

SLLS047G – FEBRUARY 1989 – REVISED AUGUST 1998

1

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

D

Operates With Single 5-V Power Supply

D

LinBiCMOS Process Technology

D

Two Drivers and Two Receivers

D

±30-V Input Levels

D

Low Supply Current...8 mA Typical

D

Meets or Exceeds TIA/EIA-232-F and ITU
Recommendation V.28

D

Designed to be Interchangeable With
Maxim MAX232

D

Applications

TIA/EIA-232-F
Battery-Powered Systems
T erminals
Modems
Computers

D

ESD Protection Exceeds 2000 V Per
MIL-STD-883, Method 3015

D

Package Options Include Plastic
Small-Outline (D, DW) Packages and
Standard Plastic (N) DIPs

description

The MAX232 device is a dual driver/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-generator
functions are available as cells in the Texas
Instruments LinASIC library.

The MAX232 is characterized for operation from
0°C to 70°C. The MAX232I is characterized for
operation from –40°C to 85°C.

AVAILABLE OPTIONS

PACKAGED DEVICES

T

A

SMALL

OUTLINE

(D)

SMALL

OUTLINE

(DW)

PLASTIC DIP

(N)

0°C to 70°C MAX232D

‡

MAX232DW

‡

MAX232N

–40°C to 85°C MAX232ID

‡

MAX232IDW

‡

MAX232IN

‡

This device is available taped and reeled by adding an R to the part number (i.e., MAX232DR).

Copyright  1998, Texas Instruments Incorporated

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.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

LinASIC and LinBiCMOS are trademarks of Texas Instruments Incorporated.

1
2
3
4
5
6
7
8

16
15
14
13
12
11
10

9

C1+

V

S+

C1–

C2+

C2–
V

S–

T2OUT

R2IN

V

CC

GND
T1OUT
R1IN
R1OUT
T1IN
T2IN
R2OUT

D, DW, OR N PACKAGE

(TOP VIEW)

MAX232, MAX232I
DUAL EIA-232 DRIVER/RECEIVER

SLLS047G – FEBRUARY 1989 – REVISED AUGUST 1998

2

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

absolute maximum ratings over operating free-air temperature range (unless otherwise noted)

†

Input supply voltage range, V

CC

(see Note 1) –0.3 V to 6 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Positive output supply voltage range, V

S+

V

CC

–0.3 V to 15 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Negative output supply voltage range, V

S–

–0.3 V to –15 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Input voltage range, V

I

: Driver –0.3 V to V

CC

+ 0.3 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Receiver ±30 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Output voltage range, V

O

: T1OUT, T2OUT V

S–

–0.3 V to V

S+

+ 0.3 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

R1OUT, R2OUT –0.3 V to V

CC

+ 0.3 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Short-circuit duration: T1OUT, T2OUT Unlimited. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Package thermal impedance, θ

JA

(see Note 2): D package 113°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DW package 105°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

N package 78°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Storage temperature range, T

stg

–65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds 260°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

†

Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTE 1: All voltage values are with respect to network ground terminal.

2. The package thermal impedance is calculated in accordance with JESD 51, except for through-hole packages, which use a trace length
of zero.

recommended operating conditions

MIN NOM MAX UNIT

Supply voltage, V

CC

4.5 5 5.5 V
High-level input voltage, VIH (T1IN,T2IN) 2 V
Low-level input voltage, VIL (T1IN, T2IN) 0.8 V
Receiver input voltage, R1IN, R2IN ±30 V

p

p

MAX232 0 70

°

Operating free-air temperature,T

A

MAX232I –40 85

°C

MAX232, MAX232I

DUAL EIA-232 DRIVER/RECEIVER

SLLS047G – FEBRUARY 1989 – REVISED AUGUST 1998

3

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature range (unless otherwise noted)

PARAMETER TEST CONDITIONS MIN TYP†MAX UNIT

p

T1OUT, T2OUT RL = 3 kΩ to GND

5

7

VOHHigh-level out ut voltage

R1OUT, R2OUT IOH = –1 mA 3.5

V

T1OUT, T2OUT RL = 3 kΩ to GND –7 –5

V

OL

L

ow-level output voltage

‡

R1OUT, R2OUT IOL = 3.2 mA 0.4

V

V

IT+

Receiver positive-going input
threshold voltage

R1IN, R2IN VCC = 5 V, TA = 25°C 1.7 2.4 V

V

IT–

Receiver negative-going input
threshold voltage

R1IN, R2IN VCC = 5 V, TA = 25°C 0.8 1.2 V

V

hys

Input hysteresis voltage R1IN, R2IN VCC = 5 V 0.2 0.5 1 V

r

i

Receiver input resistance R1IN, R2IN VCC = 5, TA = 25°C 3 5 7 kΩ

r

o

Output resistance T1OUT, T2OUT VS+ = VS– = 0, VO = ± 2 V 300 Ω

I

OS

§

Short-circuit output current T1OUT, T2OUT VCC = 5.5 V, VO = 0 ±10 mA

I

IS

Short-circuit input current T1IN, T2IN VI = 0 200 µA

I

CC

Supply current

VCC = 5.5 V,
TA = 25°C

All outputs open,

8 10 mA

†

All typical values are at VCC = 5 V, TA = 25°C.

‡

The algebraic convention, in which the least positive (most negative) value is designated minimum, is used in this data sheet for logic voltage
levels only.

§

Not more than one output should be shorted at a time.

switching characteristics, VCC = 5 V, TA = 25°C

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

t

PLH(R)

Receiver propagation delay time, low- to high-level output See Figure 1 500 ns

t

PHL(R)

Receiver propagation delay time, high- to low-level output See Figure 1 500 ns

SR Driver slew rate

RL = 3 kΩ to 7 kΩ,
See Figure 2

30 V/µs

SR(tr) Driver transition region slew rate See Figure 3 3 V/µs