Hitachi HD74HC423A
This multivibrator features output-pulse-duration control by two methods. The basic pulse duration is programmed by selection of external resistance and capacitance values.| Part No. | HD74HC423A |
|---|---|
| Datasheet | HD74HC423A Download |
| Manufacturer |  Hitachi |
| Description | Dual Retriggerable Monostable Multivibrators |
| Buy | Stock & Price |
DESCRIPTION
Once triggered, the basic pulse duration may be extended by retriggering the gated low-level-active (A) or high-level-active (B) inputs, or be reduced by use of the overriding clear. The B input is a Schmitt trigger enabling jitter-free triggering from input signals with slow transition rates.FEATURES
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● High Speed Operation High Output Current: Fanout of 10 LSTTL Loads Wide Operating Voltage: VCC = 2 to 6 V Low Input Current: 1 µA max Low Quiescent Supply Current Function Table Inputs Clear L X X H H A X H X L H B X X L Output Q L L L Q H H H HD74HC423A Pin Arrangement 1A 1B 1CLR 1Q 2Q 2Cext 2Rext/Cect GND 1 2 3 4 5 6 7 8 CLR CLR 16 15 14 13 12 11 10 9 VCC 1Rext/Cext 1Cext 1Q 2Q 2CLR 2B 2A Logic diagram Rext Cext VCC VH VL OUT Q Q A B CLR CK CK CLR To Another Transceiver 2 HD74HC423A DC Characteristics SymItem Input voltage bol VIH VCC Ta = 25°C (V) Min Ta = –40 to +85°C Typ Max Min Max Unit Test Conditions — — — — 0.5 1.5 — V 2.0 1.5 4.5 3.15 — 6.0 4.2 VIL 2.0 — 4...
