SN74HC251DBR.A中文资料德州仪器数据手册PDF规格书

1 Features

• 3-state version of ’HC151

• Wide operating voltage range of 2 V to 6 V

• High-current 3-state outputs interface directly with

system bus or can drive up to 15 LSTTL loads

• Low power consumption, 80-μA max ICC

• Typical tpd = 9 ns

• ±6-mA output drive at 5 V

• Low input current of 1 μA max

• Perform parallel-to-serial conversion

• Complementary outputs provide true and inverted

data

2 Description

The SNx4HC251 is a data selector/multiplexer

containing full binary decoding to select 1-

of-8 data sources and features strobe-controlled

complementary 3-state outputs.