Programmable DTE/DCE,

+5V RS-232 Transceiver

6

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Table 1a. DTE-Operation Pin Configurations

TTL/CMOS

I/O LABEL

MAX214

PIN

Detector Carrier Data (DCD)

7

Data Set Ready (DSR)

22

Data Terminal Ready (DTR)

24

Clear to Send (CTS)

23

Ring Indicator (RI)

8

Receiver (RxD)

Transmitter (TxD)

6

Request to Send (RTS)

25

FUNCTION

5

11

17

18

19

12

9

10

20

RS-232

I/O LABEL

DCD

DSR

DTR

CTS

RI

TxD

RxD

RTS

INPUT

THRESHOLD

+

-

-

+

+

MAX214

PIN

DB-25

PIN

8

6

20

5

22

2

3

4

Table 1b. DCE-Operation Pin Configurations

MAX214

PIN

MAX214

PIN

12

18

17

20

8

11

10

9

19

RS-232

I/O LABEL

22

RI

DTR

24

DSR

RTS

23

DCD

RxD

TxD

CTS

INPUT

THRESHOLD

8

7

+

-

-

+

DB-25

PIN

22

20

6

4

3

2

5

5

6

25

FUNCTION