HD74HC4538FPEL中文资料瑞萨数据手册PDF规格书

描述 Description

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 short. The HD74HC4538 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. The output pulse equation is simply: tw= 0.7 (R) (C).

特性 Features

• High Speed Operation: tpd(A or B to Y) = 22 ns typ (CL= 50 pF)

• 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