SN74HCT245DWE4中文资料德州仪器数据手册PDF规格书

1 Features

• Operating voltage range of 4.5 V to 5.5 V

• High-Current 3-state outputs drive bus lines

directly or up to 15-LSTTL loads

• Low power consumption, 80-μA maximum ICC

• Typical tpd = 14 ns

• ±6-mA output drive at 5 V

• Low input current of 1 μA maximum

• Inputs are TTL-voltage compatible

2 Applications

• Factory Automation and Control

• Grid Infrastructure

• Electronic Point of Sale

• Multi-Function Printers

• Motor Drives

• Storage

• Telecom Infrastructure

3 Description

The SNx4HCT245 octal bus transceivers

are designed for asynchronous two-way

communication between data buses. The controlfunction

implementation minimizes external timing

requirements.

The SNx4HCT245 devices allow data transmission

from the A bus to the B bus or from the B bus to the

A bus, depending upon the logic level at the directioncontrol

(DIR) input. The output-enable ( OE) input can

be used to disable the device so that the buses are

effectively isolated.