_______________General Description

The MAX3186 is a complete DCE RS-232 serial port

designed to meet the stringent ESD requirements of the

European community. All transmitter outputs and receiv-

er inputs are protected to ±15kV using IEC 1000-4-2

Air-Gap Discharge, ±8kV using IEC 1000-4-2 Contact

Discharge, and ±15kV using the Human Body Model.

The MAX3186 has five RS-232 transmitters, three RS-

232 receivers, and no charge pump, optimizing it for

operation in modem applications. It is guaranteed to

run at data rates up to 230kbps, providing compatibility

with popular software for communicating with personal

computers. Power-supply current is less than 300µA for

The MAX3186 is available in an SO package and in the

tiny SSOP that further reduces board space.

________________________Applications

Modems

ISDN Modems

Instruments

Equipment Meeting IEC1000-4-2

____________________________Features

o Enhanced ESD Protection:

±15kV—Human Body Model

±8kV—IEC1000-4-2, Contact Discharge

±15kV—IEC1000-4-2, Air-Gap Discharge

o Latchup Free During an ESD Event

o 20-Pin SSOP or SO Packages

o Guaranteed 230kbps Data Rate

o Flow-Through Pinout

o Complete DCE Serial Port

±15kV ESD-Protected, EMC-Compliant, 230kbps

RS-232 Serial Port for Modems

________________________________________________________________

Maxim Integrated Products

1

20

19

18

17

16

15

14

13

1

2

3

4

5

6

7

8

T1IN

R1OUT

T2IN

T2OUT

R1IN

T1OUT

TOP VIEW

R2OUT

R3OUT

T3IN

T4IN

T4OUT

T3OUT

R3IN

R2IN

12

11

9

10

T5IN

GND

T5OUT

SO/SSOP

MAX3186

__________________Pin Configuration

MAX3186

MAX3185

RS-232

INTERCONNECTING

CABLE

T1

T2

T3

T4

T5

R1

R1

R2

R3

R4

R5

R3

R2

T1

T2

T3

TTL/CMOS

LOGIC

I/O

TTL/CMOS

LOGIC

I/O

__________Typical Operating Circuit

19-1077; Rev 0; 9/96

PART

MAX3186CWP

MAX3186CAP

0°C to +70°C

0°C to +70°C

TEMP. RANGE

PIN-PACKAGE

20 SO

20 SSOP

______________Ordering Information

For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800

MAX3186EWP

-40°C to +85°C

20 SO

MAX3186EAP

-40°C to +85°C

20 SSOP