GD65232, GD75232

MULTIPLE RS232 DRIVERS AND RECEIVERS

SLLS206J − MAY 1995 − REVISED NOVEMBER 2004

11

POST OFFICE BOX 655303

APPLICATION INFORMATION

the device outputs are shorted to

±15 V and the power supplies are at low and provide low-impedance paths to ground

(see Figure 15).

VDD

VSS

±15 V

Output

GD65232,

GD75232

GD65232,

GD75232

VSS

VDD

Figure 15. Power-Supply Protection to Meet Power-Off Fault Conditions of TIA/EIA-232-F

GD65232,

GD75232

5 V

TL16C450

ACE

−12 V

TIA/EIA-232-F

DB9S

Connector

11

12

13

14

15

16

17

18

19

20

10

9

8

7

6

5

4

3

2

1

43

37

40

13

36

11

41

42

RI

DTR

CTS

SO

RTS

SI

DSR

DCD

12 V

5

9

6

1

C3

C2

C1

GND

RY5

DA3

RY4

DA2

DA1

RY3

RY2

RY1

VCC

RA5

DY3

RA4

DY2

DY1

RA3

RA2

RA1

VDD

VSS

RI

DTR

CTS

TX

RTS

RX

DSR

DCD

Figure 16. Typical Connection