SP3238ECA Ver la hoja de datos (PDF) - Signal Processing Technologies

Número de pieza

componentes Descripción

Fabricante

SP3238ECA

Intelligent +3.0V to +5.5V RS-232 Transceivers

Signal Processing Technologies 

TBD

Figure 16. Driver Output Voltages vs. Load Current

per Transmitter

VCC

+

C5 0.1µF

28

+

C1+

C1 0.1µF

26

VCC

25 C1-

V+

1 C2+ SP3238E

+

C2 0.1µF

3 C2-

V-

16 R1OUT

21 R1OUT

R1IN

20 R2OUT

5kΩ

R2IN

18 R3OUT

5kΩ

R3IN

5kΩ

24 T1IN

T1OUT

27

+

C3 0.1µF

4

C4 0.1µF

+

8

9

11

5

23 T2IN

T2OUT 6

22 T3IN

T3OUT 7

19 T4IN

T4OUT 10

VCC

To µP Supervisor

Circuit

17 T5IN

14

SHUTDOWN

13 ONLINE

15 STATUS

GND

2

T5OUT 12

DB-9 Connector Pins:

1. Received Line Signal Detector

2. Received Data

3. Transmitted Data

4. Data Terminal Ready

5. Signal Ground (Common)

6. DCE Ready

7. Request to Send

8. Clear to Send

9. Ring Indicator

DB-9

Connector

6

7

8

9

1

2

3

4

5

Figure 17. Circuit for the connectivity of the SP3238E with a DB-9 connector

SP3238EDS/04

SP3238E +3.0V to +5.5V RS-232 Transceivers

13

© Copyright 1999 Sipex Corporation

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