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SP3243E Datasheet(PDF) 13 Page - Exar Corporation

Part # SP3243E
Description  Intelligent 3.0V to 5.5V RS-232 Transceiver
PDF  20 Pages
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Manufacturer  EXAR [Exar Corporation]
Direct Link  http://www.exar.com
Logo EXAR - Exar Corporation

SP3243E Datasheet(HTML) 13 Page - Exar Corporation

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Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com
SP3238E_100_020111
13
Figure 16.
AUTO ON-LINE® Timing Waveforms
RECEIVER
RS-232 INPUT
VOLTAGES
STATUS
+5V
0V
-5V
tSTSL
tSTSH
tONLINE
VCC
0V
DRIVER
RS-232 OUTPUT
VOLTAGES
0V
+2.7V
-2.7V
S
H
U
T
D
O
W
N
Figure 17. Stage I of
AUTO ON-LINE® Circuitry
RS-232
Receiver Block
RXINACT
Inactive Detection Block
RXIN
RXOUT
R1INACT
R2INACT
R3INACT
R4INACT
R5INACT
Delay
Stage
Delay
Stage
Delay
Stage
Delay
Stage
Delay
Stage
SHUTDOWN
STATUS
Figure 18. Stage II of
AUTO ON-LINE® Circuitry



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