DM74AS21中文资料Dual 4-Input AND Gate数据手册ONSEMI规格书

描述 Description

General Description
This device contains two independent 4-input gates, each of which performs the logic AND function.

特性 Features

■ Switching specifications at 50 pF
■ Switching specifications guaranteed over full temperature and VCC range
■ Advanced oxide-isolated, ion-implanted Schottky TTL process
■ Functionally and pin for pin compatible with Schottky,
   low power Schottky, and advanced low power Schottky TTL counterpart
■ Improved AC performance over Schottky, low power
   Schottky and advanced low power Schottky counter parts

简介

DM74AS21属于集成电路（IC）的门反相器。由制造生产的DM74AS21门和反相器逻辑栅极和逆变器系列中的产品对单个逻辑信号执行基本逻辑运算（例如 AND、NOT、OR 等）。与触发器不同，它们不能够存储信息，不会对提供给其输入的信号立即做出响应。虽然早就被集成电路实施形式所取代，以用于实现复杂功能，但分立栅极仍可在仅需要非常简单逻辑功能的情况下使用。