ON MM74HC4538SJX

单稳态26 ns2 V ~ 6 V

Overview

The MM74HC4538SJX 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 MM74HC4538SJX 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.

■ 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

Features

74HC Series
in 16-SOIC (0.209, 5.30mm Width) package
Mounting Type: Surface Mount
Logic Type: Monostable
Operating Temperature: 74HC
based on 74HC4538
Quiescent Current at 130mA

2 V ~ 6 V Voltage - Supply

Applications

There are a lot of ON Semiconductor
MM74HC4538SJX applications of multivibrators.

• Puls delay and timing
• Pulse shaping
• Astable multivibrator
• Envelope detection
• Frequency multiplication
• Frequency division
• Frequency discriminators
• Timing clrcults
• Time-delay applications
• AV Receivers