SP339B Datasheet, PDF (12/23 Pages) Exar Corporation – TRANSCEIVER WITH INTERNAL TERMINATION

SP339B
RS-232/RS-485/RS-422 TRANSCEIVER WITH INTERNAL TERMINATION
FIGURE 2. MODE 01 - RS-232
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. 1.0.0
L1
1
L2
2
L3
3
R1
5kΩ
R2
5kΩ
T1
R2
30
29
R3
28
L4
4
L6
5
L7
6
L8
7
L9
8
Vcc
9
10
T2
R3
5kΩ
T3
R4
5kΩ
R5
5kΩ
All pull-downs 330kΩ
R4
27
26
R6
25
R7
24
23
R8
22
R9
21
11
12
13
14
15
16
17
18
19
20
12