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參數(shù)資料
| 型號(hào)： | HD74LVCR2245A |
| 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(yè)數(shù)： | 1/13頁(yè) |
| 文件大?。?/td> | 68K |
| 代理商： | HD74LVCR2245A |
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HD74LVCR2245A
Octal Bidirectional Transceivers with 3–state Outputs
ADE-205-235A (Z)
Preliminary
2nd. Edition
January 1999
Description
The HD74LVCR2245A 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.
All outputs, which are designed to sink up to 12 mA, include equivalent 26
resistors to reduce overshoot
and undreshoot.
When V
CC
is between 0 and 1.5 V, the device is in the high impedance state during power up or power
down.
Low voltage and high speed operation is suitable at battery drive product (note type personal computer) and
low power consumption extends the life of a battery for long time operation.
Features
V
CC
= 1.65 to 5.5 V
All inputs V
IH
(Max) = 5.5 V (@V
CC
= 0 to 5.5 V)
All inputs / 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
±
12 mA (@V
CC
= 3.0 to 5.5 V)
All outputs have equivalent 26
series resistors, so no external resistors are required
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