SP335E_17 Datasheet, PDF (10/23 Pages) Exar Corporation – TRANSCEIVER WITH INTERNAL TERMINATION

SP335E
RS-232/RS-485/RS-422 TRANSCEIVER WITH INTERNAL TERMINATION
BLOCK DIAGRAMS
FIGURE 1. RS-232 MODE
REV. 1.0.2
Cc
1.0µF
C1
0.1µF
C3
0.1µF
C2
0.1µF
C4
0.1µF
32
31
30
29
28
27
26
25
1
GND
2
T1OUT
3
T2OUT
4
SP335
32 pin QFN
RS-232
T1
T2
24
23
T1IN
22
T2IN
21
5
R1OUT
6
R2OUT
7
8
9
20
R1
R1IN
5kΩ
19
R2
R2IN
5kΩ
18
GND
17
10
11
12
13
14
15
16
Pins 12, 13, and 20 have 300k internal pull-downs (not shown).
10