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SP485 Datasheet(PDF) 7 Page - Sipex Corporation

Part No. SP485
Description  Low Power Half-Duplex RS-485 Transceivers
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Maker  SIPEX [Sipex Corporation]
Homepage  http://www.sipex.com
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 7 page
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7
Rev. 07/28/04
SP481/483/485 Low Power Half-Duplex RS485 Transceivers
© Copyright 2002 Sipex Corporation
+3V
0V
DE
5V
VOL
A, B
0V
1.5V
1.5V
tZL
tZH
VOH
A, B
2.3V
2.3V
tLZ
tHZ
0.5V
0.5V
Output normally LOW
Output normally HIGH
fSP481/485 = 1MHz; fSP483 = 100kHz; tR < 10ns; tF < 10ns
+3V
0V
RE
5V
R
0V
1.5V
1.5V
tZL
tZH
R
1.5V
1.5V
tLZ
tHZ
0.5V
0.5V
Output normally LOW
Output normally HIGH
VIL
VIH
fSP481/485 = 1MHz; fSP483 = 100kHz; tR < 10ns; tF < 10ns
Figure 9. Receiver Enable and Disable Times
Figure 8. Receiver Propagation Delays
Figure 7. Driver Enable and Disable Times
VOH
VOL
R
1.5V
1.5V
tPHL
fSP481/485 = 1MHz; fSP483 = 100kHz; tR < 10ns; tF < 10ns
OUTPUT
V0D2+
V0D2
A – B
0V
0V
tPLH
INPUT
tSKEW = | tPHL - tPLH |




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