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SP481R Datasheet, PDF (5/9 Pages) Sipex Corporation – High-Fanout RS-485 Transceiver
+3V
DE
0V
5V
A, B
VOL
VOH
A, B
0V
f = 1MHz; tR < 10ns; tF < 10ns
1.5V
tZL
2.3V Output normally LOW
2.3V Output normally HIGH
tZH
Figure 6. Driver Enable and Disable Times
1.5V
tLZ
0.5V
0.5V
tHZ
V0D2+
A–B
V0D2–
VOH
RECEIVER OUT
VOL
tPHL
tSKEW = | tPHL - tPLH |
f = 1MHz; tR < 10ns; tF < 10ns
0V
INPUT
1.5V
OUTPUT
tPLH
0V
1.5V
Figure 7. Receiver Propagation Delays
+3V
RE
0V
5V
RECEIVER OUT
VIL
VIH
RECEIVER OUT
0V
1.5V f = 1MHz; tR < 10ns; tF < 10ns
tZL
1.5V Output normally LOW
1.5V
tLZ
0.5V
1.5V Output normally HIGH
tZH
0.5V
tHZ
Figure 8. Receiver Enable and Disable Times
Date: 6/21/04
SP485R RS-485 Serial Transceiver
5
© Copyright 2004 Sipex Corporation