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參數(shù)資料
| 型號(hào)： | HD74LVC245 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | Octal Bidirectional Transceivers with 3-state Outputs |
| 中文描述： | 八路雙向收發(fā)器具有三態(tài)輸出 |
| 文件頁數(shù)： | 1/9頁 |
| 文件大小： | 51K |
| 代理商： | HD74LVC245 |
HD74LVC245A
Octal Bidirectional Transceivers with 3-state Outputs
ADE-205-111B(Z)
3rd Edition
December 1996
Description
The HD74LVC245A has eight buffers with three state outputs in a 20 pin package. When (T /
R
) is high,
data flows from the A inputs to the B outputs, and when (T /
R
) is low, data flows from the B inputs to the
A outputs. A and B bus are separated by making enable input (
OE
) high level. Low voltage and high
speed operation is suitable at the battery drive product (note type personal computer) and low power
consumption extends the life of a battery for long time operation.
Features
V
CC
= 2.0 V to 5.5 V
All inputs V
IH
(Max.) = 5.5 V (@V
CC
= 0 V to 5.5 V)
All input outputs V
I/O
(Max.) = 5.5 V (@V
CC
= 0 V or output off state)
Typical V
OL
ground bounce < 0.8 V (@V
CC
= 3.3 V, Ta = 25°C)
Typical V
OH
undershoot > 2.0 V (@V
CC
= 3.3 V, Ta = 25°C)
High output current ±24 mA (@V
CC
= 3.0 V to 5.5 V)
Function Table
Inputs
T /
R
OE
Operation
L
L
B data to A bus
L
H
A data to B bus
H
H :
L :
X :
Z :
X
Z
High level
Low level
Immaterial
High impedance
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