DS75176B Datasheet, PDF (5/14 Pages) National Semiconductor (TI) – Multipoint RS-485/RS-422 Transceivers

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DS75176B, DS75176BT
SNLS381C – JULY 1998 – REVISED APRIL 2013
Note: Differential input voltage may may be realized by grounding RI and pulsing RI between +2.5V and −2.5V
Figure 8. Receiver Propagation Delays
Function Tables
Figure 9. Receiver Enable and Disable Times
Table 1. DS75176B Transmitting⁽¹⁾
Inputs
Line Condition
Outputs
RE
DE
DI
DO
DO
X
1
1
No Fault
0
1
X
1
0
No Fault
1
0
X
0
X
X
Z
Z
X
1
X
Fault
Z
Z
(1) X — Don't care condition
Z — High impedance state
Fault — Improper line conditons causing excessive power dissipation
in the driver, such as shorts or bus contention situations
**This is a fail safe condition
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