NXP 逻辑集成电路 74HC373D

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74HC373D

74HC373D


FEATURES

• 3-state non-inverting outputs for bus oriented

applications

• Common 3-state output enable input

• Functionally identical to the “563”, “573” and “533”

• Output capability: bus driver

• ICC category: MSI

74HC373D

GENERAL DESCRIPTION

The 74HC/HCT373 are high-speed Si-gate CMOS devices

and are pin compatible with low power Schottky TTL

(LSTTL). They are specified in compliance with JEDEC

standard no. 7A.

The 74HC/HCT373 are octal D-type transparent latches

featuring separate D-type inputs for each latch and 3-state

outputs for bus oriented applications. A latch enable (LE)



input and an output enable (OE) input are common to all

latches.

The “373” consists of eight D-type transparent latches with

3-state true outputs. When LE is HIGH, data at the Dn

inputs enters the latches. In this condition the latches are

transparent, i.e. a latch output will change state each time

its corresponding D-input changes.

When LE is LOW the latches store the information that was

present at the D-inputs a set-up time preceding the

HIGH-to-LOW transition of LE. When OE is LOW, the

contents of the 8 latches are available at the outputs.

When OE is HIGH, the outputs go to the high impedance

OFF-state. Operation of the OE input does not affect the

state of the latches.

The “373” is functionally identical to the “533”, “563” and

“573”, but the “563” and “533” have inverted outputs and

the “563” and “573” have a different pin arrangement.

74HC373D



型号/规格

74HC373D

品牌/商标

NXP

封装

SOP

批号

19+

环保

环保

包装

2000/盘

产地

中国

芯片颜色

黑色