Datasheet

DS14C232
SNLS076C –OCTOBER 1999–REVISED APRIL 2013 www.ti.com
PIN DESCRIPTIONS
V
CC
(Pin 16)
Power supply pin for the device, +5V (±10%).
V+ (Pin 2)
Positive supply for TIA/EIA-232-E drivers. Recommended external capacitor: C4-1.0 μF (6.3V). Capacitor value should be larger than 1 μF.
This supply is not intended to be loaded externally.
V− (Pin 6)
Negative supply for TIA/EIA-232-E drivers. Recommended external capacitor: C3-1.0 μF (16V). Capacitor value should be larger than 1 μF.
This supply is not intended to be loaded externally.
C1+, C1− (Pins 1, 3)
External capacitor connection pins. Recommended capacitor: 1.0 μF (6.3V). Capacitor value should be larger than 1 μF.
C2+, C2− (Pins 4, 5)
External capacitor connection pins. Recommended capacitor: 1.0 μF (16V). Capacitor value should be greater than 1 μF.
D
IN
1, D
IN
2 (Pins 11, 10)
Driver input pins are TTL/CMOS compatible. Inputs of unused drivers may be left open, an internal active pull-up resistor (500 kΩ minimum,
typically 5 MΩ) pulls input HIGH. Output will be LOW for open inputs.
D
OUT
1, D
OUT
2 (Pins 14, 7)
Driver output pins conform to TIA/EIA-232-E levels.
R
IN
1, R
IN
2 (Pins 13, 8)
Receiver input pins accept TIA/EIA-232-E input voltages (±25V). Receivers feature a noise filter and specified hysteresis of 100 mV.
Unused receiver input pins may be left open. Internal input resistor 4.7 kΩ pulls input low, providing a failsafe high output.
R
OUT
1, R
OUT
2 (Pins 12, 9)
Receiver output pins are TTL/CMOS compatible. Receiver output HIGH voltage is specified for both CMOS and TTL load conditions.
GND (Pin 15)
Ground Pin.
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