SP522 Datasheet, PDF (15/23 Pages) Sipex Corporation – Low-Cost Programmable Multi-Protocol Transceivers

MODE: RS422/485
DRIVER
RECEIVER
DP0
DP1
DP0
DP1
0
1
0
1
R1INA (3)
R1OUT (44)
R1INB (4)
R2INA (5)
R2OUT (43)
R2INB (6)
R3INA (7)
R3OUT (42)
R3INB (8)
R4INA (9)
R4OUT (41)
R4INB (10)
SP524
RECEIVERS DRIVERS
T1IN (24)
T1OUTA (22)
T1OUTB (20)
T2IN (25)
T2OUTA (18)
T2OUTB (17)
T3IN (26)
T3OUTA (16)
T3OUTB (15)
T4IN (27)
T4OUTA (13)
T4OUTB (11)
LATCH_EN
1
LOOPBCK
1
ENTX ENRX
1
0
Figure 13. Mode Diagram — RS422/RS485 for the SP524
Rev. 7/10/03
SP522 Multi–Mode Serial Transceivers
15
© Copyright 2003 Sipex Corporation