參數(shù)資料
型號(hào): HD74HC245
廠(chǎng)商: Hitachi,Ltd.
英文描述: Octal Buffers And Line Drivers With 3-State Outputs 20-LCCC -55 to 125
中文描述: 八路總線(xiàn)收發(fā)器(3態(tài)輸出)
文件頁(yè)數(shù): 1/9頁(yè)
文件大?。?/td> 58K
代理商: HD74HC245
HD74HC245
Octal Bus Transceivers (with 3-state outputs)
Description
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 low, data flows from the B inputs to the A outputs.
The HD74HC245 transfers true data from one bus to the other. This device does not have schmitt trigger
inputs.
Features
High Speed Operation: t
pd
= 8 ns typ (C
L
= 50 pF)
High Output Current: Fanout of 15 LSTTL Loads
Wide Operating Voltage: V
CC
= 2 to 6 V
Low Input Current: 1 μA max
Low Quiescent Supply Current: I
CC
(static) = 4 μA max (Ta = 25°C)
Function Table
Enable G
Direction Control DIR
Operation
L
L
B data to A bus
L
H
A data to B bus
H
H :
L
X :
X
Isolation
high level
low level
irrelevant
:
相關(guān)PDF資料
PDF描述
HD74HC251 Octal Buffers And Line Drivers With 3-State Outputs 20-CDIP -55 to 125
HD74HC253 Octal Buffers And Line Drivers With 3-State Outputs 20-CFP -55 to 125
HD74HC257 Octal Buffers And Line Drivers With 3-State Outputs 20-CDIP -55 to 125
HD74HC258 Octal Buffers And Line Drivers With 3-State Outputs 20-CFP -55 to 125
HD74HC259 Octal Bus Transceivers With 3-State Outputs 20-LCCC -55 to 125
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