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SP3238E Datasheet, PDF (11/20 Pages) Sipex Corporation – Intelligent +3.0V to +5.5V RS-232 Transceivers | |||
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RECEIVER +2.7V
RS-232 INPUT 0V
VOLTAGES -2.7V
VCC
STATUS
0V
+5V
DRIVER
RS-232 OUTPUT 0V
VOLTAGES
-5V
Figure 10. Auto-Online Timing Waveforms
S
H
U
T
D
O
W
N
tSTSL
tSTSH
tONLINE
VCC = +5V
+
C1 â
â5V
+5V
+
C2 â
â5V
Figure 11. Charge Pump â Phase 1
C4
+ â VDD Storage Capacitor
â + VSS Storage Capacitor
C3
VCC = +5V
+
C1 â
Figure 12. Charge Pump â Phase 2
+
C2 â
â10V
C4
+ â VDD Storage Capacitor
â + VSS Storage Capacitor
C3
SP3238EDS/04
SP3238E +3.0V to +5.5V RS-232 Transceivers
11
© Copyright 1999 Sipex Corporation
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