HD74BC645A

更新时间： 2024-10-03 22:55:07

品牌	Logo	应用领域
日立 - HITACHI		总线收发器
页数	文件大小	规格书
9页	45K
描述
Octal Bus Transceivers With 3 State Outputs

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HD74BC645A 数据手册

HD74BC645A

Octal Bus Transceivers With 3 State Outputs

ADE-205-027 (Z)

Rev.0

June 1993

Description

The HD74BC645A provides high drivability and operation equal to or better than high speed bipolar

standard logic IC by using Bi-CMOS process. The device features low power dissipation that is about 1/5

of high speed bipolar logic IC. When the frequency is 10 MHz. The device has eight bus transceivers with

three state outputs in a 20 pin package. Each device has an active low enable input (G) and a direction

control input, DiR. When DiR is high, data flows from the A inputs to the B outputs. When DiR is high,

data flows from the B inputs to the A outputs. When enable inputs (G) is high, disables both A and B ports

by placing then in a high impedance.

Features

•

Input/Output are at high impedance state when power supply is off.

Input pins can be open, when not used, owing to built in input pull up circuit.

Input is TTL level.

Wide operating temperature range

Ta = –40 to +85°C.

Function Table

Control Inputs

DIR

Operation

B data to A bus

A data to B bus

H :

High level

Low level

Immaterial

High impedance

12 3 4 5 6 7...9

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型号	品牌	获取价格	描述	数据表
HD74BC645AFP	ETC	获取价格	BUS TRANSCEIVER\|SINGLE\|8-BIT\|BICMOS-TTL\|SOP\|20PIN\|PLASTIC
HD74BC645AFP-E	RENESAS	获取价格	BCT/FBT SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDSO20, FP-20DA
HD74BC645AFPEL	RENESAS	获取价格	Octal Bus Transceivers With 3 State Outputs
HD74BC645AFP-EL	RENESAS	获取价格	Bus Transceiver, BCT/FBT Series, 1-Func, 8-Bit, True Output, BICMOS, PDSO20, FP-20DA
HD74BC645AP	ETC	获取价格	BUS TRANSCEIVER\|SINGLE\|8-BIT\|BICMOS-TTL\|DIP\|20PIN\|PLASTIC
HD74BC645ARP	ETC	获取价格	Bus Transceiver
HD74BC645ARP-EL	HITACHI	获取价格	暂无描述
HD74BC645ARP-EL	RENESAS	获取价格	BCT/FBT SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDSO20, FP-20DB
HD74BC645ASS	HITACHI	获取价格	Bus Transceiver, BCT/FBT Series, 1-Func, 8-Bit, PDSO20
HD74BC645AT	ETC	获取价格	BUS TRANSCEIVER\|SINGLE\|8-BIT\|BICMOS-TTL\|TSSOP\|20PIN\|PLASTIC