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SP483E Datenblatt(PDF) 5 Page - Sipex Corporation

Teilenummer SP483E
Bauteilbeschribung  Enhanced Low EMI Half-Duplex RS-485 Transceiver
PDF  11 Pages
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Hersteller  SIPEX [Sipex Corporation]
Direct Link  http://www.sipex.com
Logo SIPEX - Sipex Corporation

SP483E Datenblatt(HTML) 5 Page - Sipex Corporation

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5
SP483EDS/05
SP483E Low EMI Half-Duplex RS485 Transceiver
© Copyright 2000 Sipex Corporation
INPUTS
OUTPUTS
LINE
RE
DE
DI CONDITION
B
A
X
1
1
No Fault
0
1
X
1
0
No Fault
1
0
X0
X
X
ZZ
X
1
X
Fault
Z
Z
INPUTS
OUTPUTS
RE
DE
A - B
R
0
0
+0.2V
1
0
0
-0.2V
0
0
0
Inputs Open
1
10
X
Z
Table 1. Transmit Function Truth Table
Table 2. Receive Function Truth Table
+3V
0V
DE
5V
VOL
A, B
0V
1.5V
1.5V
tZL
tZH
f = 100kHz; tR < 10ns; tF < 10ns
VOH
A, B
2.3V
2.3V
tLZ
tHZ
0.5V
0.5V
Output normally LOW
Output normally HIGH
+3V
0V
RE
5V
R
0V
1.5V
1.5V
tZL
tZH
f = 100kHz; tR < 10ns; tF < 10ns
R
1.5V
1.5V
tLZ
tHZ
0.5V
0.5V
Output normally LOW
Output normally HIGH
VIL
VIH
Figure 8. Receiver Enable and Disable Times
Figure 7. Receiver Propagation Delays
Figure 6. Driver Enable and Disable Times
VOH
VOL
R
1.5V
1.5V
tPHL
f = 100kHz; tR < 10ns; tF < 10ns
OUTPUT
V0D2+
V0D2–
A – B
0V
0V
tPLH
INPUT
tSKEW = | tPHL - tPLH |



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