8位数值比较器（平等探测器） 8-Bit Magnitude Comparator Equality Detector
General Description
The MM74HC688 equality detector utilizes advanced silicon-gate CMOS technology to compare bit for bit two 8-bit words and indicates whether or not they are equal. The P Q output indicates equality when it is LOW. A single active low enable is provided to facilitate cascading of several packages and enable comparison of words greater than 8 bits.
Features
■ Typical propagation delay: 20 ns
■ Wide power supply range: 2–6V
■ Low quiescent current: 80 PA 74 Series
■ Large output current: 4 mA 74 Series
■ Same as HC521
| 型号 | 品牌 | 下载 |
|---|---|---|
| MM74HC688SJ | Fairchild 飞兆/仙童 | 下载 |
| MM74HCT245WM | Fairchild 飞兆/仙童 | 下载 |
| MM74HC245AWM | Fairchild 飞兆/仙童 | 下载 |
| MM74HC688WMX | National Semiconductor 美国国家半导体 | 下载 |
| MM74HC138M | Fairchild 飞兆/仙童 | 下载 |
| MM74HC273WM | Fairchild 飞兆/仙童 | 下载 |
| MM74HC574WM | Fairchild 飞兆/仙童 | 下载 |
| MM74HC74AM | Fairchild 飞兆/仙童 | 下载 |
| MM74HC164M | Fairchild 飞兆/仙童 | 下载 |
| MM74HC74AMX | Fairchild 飞兆/仙童 | 下载 |
| MM74HC574WMX | Fairchild 飞兆/仙童 | 下载 |