Pin Descriptions

V

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 capaci-

tor: 1.0 µF (6.3V). Capacitor value should be larger than

1µF.

C2+, C2− (Pins 4, 5)

External capacitor connection pins. Recommended capaci-

tor: 1.0 µF (16V). Capacitor value should be greater than

1µF.

D

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 5 MΩ) pulls input HIGH.

Output will be LOW for open inputs.

D

Driver output pins conform to TIA/EIA-232-E levels.

R

Receiver input pins accept TIA/EIA-232-E input voltages

teresis of 100 mV. Unused receiver input pins may be left

open. Internal input resistor 4.7 k

Ω pulls input low, providing

a failsafe high output.

R

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.

DS010744-5

FIGURE 3. Receiver Load Circuit

DS010744-6

FIGURE 4. Receiver Propagation Delays and Noise Rejection (Note 4)

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