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SP336ECT-L Datasheet(PDF) 17 Page - Exar Corporation

Part # SP336ECT-L
Description  3.3V - 5V PROGRAMMABLE RS-232/RS-485/RS-422 SERIAL TRANSCEIVER
PDF  30 Pages
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Manufacturer  EXAR [Exar Corporation]
Direct Link  http://www.exar.com
Logo EXAR - Exar Corporation

SP336ECT-L Datasheet(HTML) 17 Page - Exar Corporation

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FIGURE 7. RS-485 DRIVER PROPAGATION DELAY TEST CIRCUIT
A
B
Tx
DI
R
L
54Ω
C
L
50pF
3.3V
VOD
FIGURE 8. RS-485 DRIVER TIMING DIAGRAM
Vcc
0V
DI
A
B
VO+
V
DIFF
VA –VB
0V
VO–
Vcc/2
Vcc/2
tPLH
tF
tR
VO
1/2VO
1/2VO
tPHL
t SKEW = |t DPLH- tDPHL|
tDPLH
tDPHL
10%
90%
10%
90%
FIGURE 9. RS-485 DRIVER ENABLE AND DISABLE TEST CIRCUIT
GENERATOR
50Ω
S1
R
L = 500Ω
OUT
C
L = 50pF
Tx
Vcc
B
A
DI
SP336E
17
REV. 1.0.0
3.3V - 5V PROGRAMMABLE RS-232/RS-485/RS-422 SERIAL TRANSCEIVER



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