HD74HC688RP-EL

更新时间： 2024-01-13 02:45:14

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HD74HC688RP-EL 数据手册

HD74HC688

8-bit Magnitude Comparator

Description

The HD74HC688 compares 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.

This device is useful in memory block decoding applications, where memory block enable signals must be

generated from computer address information.

Features

•

High Speed Operation: t_pd(P or Q to Output) = 17 ns typ (C_L= 50 pF

High Output Current: Fanout of 10 LSTTL Loads

Wide Operating Voltage: V_CC= 2 to 6 V

Low Input Current: 1 µA max

Low Quiescent Supply Current: I_CC(static) = 4 µA max (Ta = 25°C)

Function Table

Input

Data P, Q

P=Q

Enable G

P=Q

P>Q

P<Q

12 3 4 5 6 7...9

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型号	品牌	获取价格	描述	数据表
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HD74HC7266FPEL	RENESAS	获取价格	Quad. 2-input Exclusive-NOR Gates
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HD74HC7266P	RENESAS	获取价格	Quad. 2-input Exclusive-NOR Gates
HD74HC7266RPEL	RENESAS	获取价格	Quad. 2-input Exclusive-NOR Gates
HD74HC7266RP-EL	RENESAS	获取价格	HC/UH SERIES, QUAD 2-INPUT XNOR GATE, PDSO14, SOP-14
HD74HC73	RENESAS	获取价格	Dual J-K Flip-Flops (with Clear)