Date: 03/30/05

SP3203E, 3V RS232 Serial Transceiver with Logic Selector and 15kV ESD

© Copyright 2005 Sipex Corporation

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Figure 17. Circuit for the connectivity of the SP3203E with a DB-9 connector

6

7

8

9

1

2

3

4

5

DB-9

Connector

6. DCE Ready

7. Request to Send

8. Clear to Send

9. Ring Indicator

DB-9 Connector Pins:

1. Received Line Signal Detector

2. Received Data

3. Transmitted Data

4. Data Terminal Ready

5. Signal Ground (Common)

SP3203E

1

3

5

4

2

6

19

GND

C1+

C1-

C2+

C2-

V+

V-

7

8

9

11

10

0.1µF

0.1µF

0.1µF

+

C2

C5

C1

+

+

C3

C4

+

+

0.1µF

0.1µF

17

16

15

14

13

18

T

R

R

T

T

T

T

T

R

R

12

Shutdown

20