SP331 Datasheet, PDF (6/13 Pages) Sipex Corporation – Programmable RS-232/RS-485 Transceiver

TTL
INPUT
DRIVER
OUTPUT
Figure 7. Typical RS-232 Driver Output
TI4 1
SEL_B 2
TX4 3
TX3 4
VCC 5
TX1 6
TX2 7
GND 8
C1+ 9
V+ (VDD) 10
C2+ 11
C1– 12
C2– 13
V– (VSS) 14
Figure 9. SP331 Pinout
28 TI3
27 TI2
26 TI1
25 SEL_C
24 SEL_A
23 SEL_D
22 RX4
21 RX3
20 RX2
19 RX1
18 RI4
17 RI3
16 RI2
15 RI1
TTL
Input
Driver Output A
Driver Output B
Differential
Output
VA - VB
Figure 8. Typical RS-485 Driver Output
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com

SP331_100_012610