7400中文資料仙童半導(dǎo)體數(shù)據(jù)手冊PDF規(guī)格書

General Description

The MM74HC00 NAND gates utilize advanced silicon-gate CMOS technology to achieve operating speeds similar to LS-TTL gates with the low power consumption of standard CMOS integrated circuits. All gates have buffered outputs. All devices have high noise immunity and the ability to drive 10 LS-TTL loads. The 74HC logic family is function ally as well as pin-out compatible with the standard 74LS logic family. All inputs are protected from damage due to static discharge by internal diode clamps to VCC and ground.

Features

■ Typical propagation delay: 8 ns

■ Wide power supply range: 2–6V

■ Low quiescent current: 20 μA maximum (74HC Series)

■ Low input current: 1 μA maximum

■ Fanout of 10 LS-TTL loads