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DS14C202 Datasheet(PDF) 4 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part No. DS14C202
Description  Low Power 5V Powered EIA/TIA-232 Dual Driver/Receiver
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Maker  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
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DS14C202 Datasheet(HTML) 4 Page - National Semiconductor (TI)

   
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Pin Descriptions
V
CC (Pin 16)
Power supply pin for the device, +5V (±10%).
V
+ (Pin 2)
Positive supply for EIA/TIA-232-E drivers. Recommended
external capacitor: C4 = 0.1 µF (
≥ 6.3V). Capacitor value
should not be less than 0.1 µF. This supply is not intended to
be loaded externally. (Note 9)
V
(Pin 6)
Negative supply for EIA/TIA-232-E drivers. Recommended
external capacitor: C3 = 0.1 µF (
≥ 16V). Capacitor value
should not be less than 0.1 µF. This supply is not intended to
be loaded externally. (Note 9)
C1+, C1− (Pins 1, 3)
External capacitor connection pins. Recommended capaci-
tor: C1 = 0.1 µF (
≥ 6.3V). Capacitor value should not be less
than 0.1 µF. (Note 9)
C2+, C2− (Pins 4, 5)
External capacitor connection pins. Recommended capaci-
tor: C2 = 0.1 µF (
≥ 16V). Capacitor value should not be less
than 0.1 µF. (Note 9)
D
IN1, DIN2 (Pins 11, 10)
Driver input pins are TTL/CMOS compatible. Inputs of un-
used drivers may be left open, an internal active pull-up re-
sistor (500 k
Ω minimum, typically 1 MΩ) pulls input HIGH.
Output will be LOW for input pins.
D
OUT1, DOUT2 (Pins 14, 7)
Driver output pins conform to EIA/TIA-232-E levels.
R
IN1, RIN2 (Pins 13, 8)
Receiver input pins accept EIA/TIA-232-E input voltages
(±25V). Receivers feature guaranteed hysteresis of 200 mV.
Unused receiver input pins may be left open. Internal input
resistor (5 k
Ω) pulls input LOW, providing a fail-safe HIGH
output.
R
OUT1, ROUT2 (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.
Note 9: All capacitor values have tolerances of less than ±20%.
Typical Application Information
Application of DS14C202 and INS8250
DS012622-7
PrintDate=1998/06/22 PrintTime=10:23:03 42589 ds012622 Rev. No. 0
cmserv
Proof
4
Book
Extract
End
www.national.com
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