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The ST202E/ST232E are a 2 driver 2 receiver devices designed for RS-232 and V.28 communications in harsh enviroments. Each transmitter output and receiver input is protected against ± 15KV electrostatic discharge (ESD) shocks. The drivers meet all EIA/TIA-232E and CCITT V.28 specifications at data rates up to 120Kbps, when loaded in accordance with the EIA/TIA-232Especification.
The ST202E/232E use a single 5V supply voltage.
The ST232E operates with four 1mF capacitors.
ST202E Maximum Ratings
Symbol
Parameter
Value
Unit
VCC
Supply Voltage
-0.3 to 6
V
V+
Extra Positive Voltage
(VCC - 0.3) to 14
V
V-
Extra Negative Voltage
-14 to 0.3
V
TIN
Transmitter Input Voltage Range
-0.3 to (VCC + 0.3)
V
RIN
Receiver Input Voltage Range
±30
V
TOUT
Transmitter Output Voltage Range
(V- - 0.3) to (V+ + 0.3)
V
ROUT
Receiver Output Voltage Range
-0.3 to (VCC + 0.3)
V
TSCTOUT
Short Circuit Duration on TOUT
infinite
Tstg
Storage Temperature Range
-65 to +150
ST202E Features
·ESDPROTECTIONFOR RS-232 I/OPINS: ± 15 KVHUMAN BODYMODEL ·GUARANTEED120 kbpsDATE RATE ·GUARANTEEDSLEWRATE RANGE3 to 30V/ms ·OPERATEFROMA SINGLE 5VPOWER SUPPLY