_______________General Description

The MAX214 +5V RS-232 transceiver provides a com-

plete, 8-line, software-configurable, DTE or DCE port

RS-232 interface. Tx, Rx, RTS, CTS, DTR, DSR, DCD,

and RI circuits can be configured as either Data

Terminal Equipment (DTE) or Data Circuit-Terminating

Equipment (DCE) using the DTE/DCE control pin. The

MAX214 eliminates the need to swap cables when

switching between DTE and DCE configurations.

________________________Applications

AT-Compatible Laptop Computers

AT-Compatible Desktop Computers

Modems, Printers, and Other Peripherals

____________________________Features

o Eliminates Null Modem Cables

o Programmable DTE or DCE Serial Port

o 1µF Charge-Pump Capacitors

o 116kbps Data Rate—Guaranteed

o 20µA Shutdown Mode

o Receivers Active in Shutdown

______________Ordering Information

Programmable DTE/DCE,

+5V RS-232 Transceiver

________________________________________________________________

Maxim Integrated Products

1

28

27

26

25

24

23

22

21

20

19

18

17

16

15

1

2

3

4

5

6

7

8

9

10

11

12

13

14

TOP VIEW

MAX214

C1-

C1+

SHDN

TB

TC

RB

RC

DTE/DCE

TRB

RTB

TRC

RTC

V+

C2+

C2-

HI-Z

N.C.

TA

RA

RDC

RE

TRA

RTA

RDTC

RRE

GND

V-

DIP/SO

__________________Pin Configuration

RTA

TRA

TRB

RTB

TRC

RTC

RDTC

RRE

RE

RC

TC

RB

TB

RA

TA

C1+

C1-

C2+

C2-

V+

V-

15

14

9

10

20

19

18

17

11

12

5

6

25

23

24

22

7

8

27

28

1

2

16

GND

13

1

µF

1

µF

1

µF

1

µF

+5V

DTE

DTE

DCE

DTE

DTE

DCE

DTE

DTE

DCE

DTE

DTE

DCE

DTE/DCE

SHDN

HI-Z

21

26

3

RDC

DCE

MAX214

1

µF

__________Typical Operating Circuit

Call toll free 1-800-998-8800 for free samples or literature.

PART

TEMP. RANGE

PIN-PACKAGE

MAX214CPI

0°C to +70°C

28 Plastic DIP

MAX214CWI

0°C to +70°C

28 Wide SO

MAX214C/D

0°C to +70°C

Dice*

MAX214EPI

-40°C to +85°C

28 Plastic DIP

MAX214EWI

-40°C to +85°C

28 Wide SO

19-0199; Rev 1; 8/95