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MM74HC4538 Datasheet PDF - Fairchild Semiconductor

Part NameDescriptionManufacturer
MM74HC4538 Dual Retriggerable Monostable Multivibrator Fairchild
Fairchild Semiconductor Fairchild
Other PDF  no available.
MM74HC4538 Datasheet PDF : MM74HC4538 pdf   
MM74HC4538 image

General Description
The MM74HC4538 high speed monostable multivibrator (one shots) is implemented in advanced silicon-gate CMOS technology. They feature speeds comparable to low power Schottky TTL circuitry while retaining the low power and high noise immunity characteristic of CMOS circuits.
Each multivibrator features both a negative, A, and a positive, B, transition triggered input, either of which can be used as an inhibit input. Also included is a clear input that when taken low resets the one shot. The MM74HC4538 is retriggerable. That is, it may be triggered repeatedly while their outputs are generating a pulse and the pulse will be extended.
Pulse width stability over a wide range of temperature and supply is achieved using linear CMOS techniques. The output pulse equation is simply: PW = 0.7(R)(C) where PW is in seconds, R is in ohms, and C is in farads. This device is pin compatible with the CD4528, and the CD4538 one shots. All inputs are protected from damage due to static discharge by diodes to VCC and ground.

Features
■ Schmitt trigger on A and B inputs
■ Wide power supply range: 2–6V
■ Typical trigger propagation delay: 32 ns
■ Fanout of 10 LS-TTL loads
■ Low input current: 1 µA max

 

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