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SP485REP-L Datasheet(PDF) 5 Page - Exar Corporation

Part # SP485REP-L
Description  1/10th Unit Load RS-485 Transceiver
PDF  9 Pages
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Manufacturer  EXAR [Exar Corporation]
Direct Link  http://www.exar.com
Logo EXAR - Exar Corporation

SP485REP-L Datasheet(HTML) 5 Page - Exar Corporation

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Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 50-668-707 • www.exar.com
SP485R_00_072309
Figure 6. Driver Propagation Delays
+3V
0V
DRIVER INPUT
A
B
DRIVER
OUTPUT
VO+
DIFFERENTIAL
OUTPUT
VA –VB
0V
VO–
1.5V
1.5V
tPLH
tF
tR
f ≥1MHz; tR ≤10ns; tF ≤10ns
VO 1/2VO
1/2VO
tPHL
tSKEW = |tDPLH- tDPHL|
tDPLH
tDPHL
Figure 7. Driver Enable and Disable Times
Figure 9. Receiver Enable and Disable Times
+3V
0V
DE
5V
VOL
A,B
0V
1.5V
1.5V
tZL
tZH
f = 1MHz; tR < 10ns; tF < 10ns
VOH
A,B
2.3V
2.3V
tLZ
tHZ
0.5V
0.5V
Output normally LOW
Output normally HIGH
VOH
VOL
RECEIVER OUT
1.5V
1.5V
tPHL
f = 1MHz; tR 10ns; tF ≤ 10ns
OUTPUT
VOD2+
VOD2–
A – B
0V
0V
tPLH
INPUT
≤
+3V
0V
5V
0V
1.5V
1.5V
tZL
tZH
f = 1MHz; tR ≤ 10ns; tF ≤ 10ns
RECEIVER OUT
1.5V
1.5V
tLZ
tHZ
0.5V
0.5V
Output normally LOW
Output normally HIGH
VIL
VIH
RE
RECEIVER OUT
Figure 8. Receiver Propagation Delays
SWITCHING WAVEFORMS



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