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74HC4538FT - Dual Monostable Multivibrator

General Description

2.

The 74HC4538FT is a high speed CMOS MONOSTABLE MULTIVIBRATOR fabricated with silicon gate CMOS technology.

It achieves the high speed operation similar to equivalent LSTTL while maintaining the CMOS low power dissipation.

Key Features

  • (Note) (1) Wide operating temperature range: Topr = -40 to 125  (2) High speed: tpd = 25 ns (typ. ) at VCC = 5.0 V (3) Low power dissipation: Standby state: ICC = 4.0 µA (max) at Ta = 25  Active state: ICC = 350 µA (max) at Ta = 25  (4) Balanced propagation delays: tPLH ≈ tPHL (5) Wide operating voltage range: VCC(opr) = 2.0 to 6.0 V Note: In the case of using only one circuit, CD should be tied to GND, T1T2QQ should be tied to OPEN, the other inputs should be tied to VCC or GND. 4. Packagi.

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Datasheet Details

Part number 74HC4538FT
Manufacturer Toshiba
File Size 358.20 KB
Description Dual Monostable Multivibrator
Datasheet download datasheet 74HC4538FT Datasheet

Full PDF Text Transcription (Reference)

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CMOS Digital Integrated Circuits Silicon Monolithic 74HC4538FT 74HC4538FT 1. Functional Description • Dual Monostable Multivibrator 2. General The 74HC4538FT is a high speed CMOS MONOSTABLE MULTIVIBRATOR fabricated with silicon gate CMOS technology. It achieves the high speed operation similar to equivalent LSTTL while maintaining the CMOS low power dissipation. There are two trigger inputs, A input (positive edge input), and B input (negative edge input). These inputs are valid for a slow rise/fall time signal (tr = tf = 1 s) as they are schmitt trigger inputs. After triggering, the output stays in a MONOSTABLE state for the time period determined by the external resistor and capacitor (RX, CX). A low level at CD input breaks this STABLE STATE.