RS-232 View Datasheet(PDF) - Exar Corporation

Part Name

Description

MFG CO.

RS-232

RS-232/RS-485/RS-422 TRANSCEIVER WITH INTERNAL TERMINATION

Exar Corporation 

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SP339E

RS-232/RS-485/RS-422 TRANSCEIVER WITH INTERNAL TERMINATION

FIGURE 4. MODE 11 - RS-485/422 FULL DUPLEX

C2

C3

0.1µF

0.1µF

C1

0.1µF

C4

0.1µF

40

39

38

37

36

35

34

33

Cc

1.0µF

32

31

REV. 1.0.4

L1 = 1

1

L2

2

L3

3

4

L6 = 1

5

T1

R1

120̢

R2

30

29

R3

28

R4

27

26

6

25

L8 = 1

7

24

L9 = 1

8

23

Vcc

9

22

All pull-downs 330k̢

10

21

11

12

13

14

15

16

17

18

19

20

14

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