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Hitachi Power Semiconductor Device Electronic Components Datasheet

HD74LVCR2245A Datasheet

Octal Bidirectional Transceivers with 3-state Outputs

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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 VCC 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
VCC = 1.65 to 5.5 V
All inputs VIH (Max) = 5.5 V (@VCC = 0 to 5.5 V)
All inputs / outputs VI / O (Max) = 5.5 V (@VCC = 0 V or output off state)
Typical VOL ground bounce < 0.8 V (@VCC = 3.3 V, Ta = 25°C)
Typical VOH undershoot > 2.0 V (@VCC = 3.3 V, Ta = 25°C)
High output current ±12 mA (@VCC = 3.0 to 5.5 V)
All outputs have equivalent 26 series resistors, so no external resistors are required


Hitachi Power Semiconductor Device Electronic Components Datasheet

HD74LVCR2245A Datasheet

Octal Bidirectional Transceivers with 3-state Outputs

No Preview Available !

HD74LVCR2245A
Function Table
Inputs
OE
L
L
H
H : High level
L : Low level
X : Immaterial
Z : High impedance
Pin Arrangement
T/R
L
H
X
Operation
B data to A bus
A data to B bus
Z
T/R 1
A0 2
A1 3
A2 4
A3 5
A4 6
A5 7
A6 8
A7 9
GND 10
(Top view)
20 VCC
19 OE
18 B0
17 B1
16 B2
15 B3
14 B4
13 B5
12 B6
11 B7
2


Part Number HD74LVCR2245A
Description Octal Bidirectional Transceivers with 3-state Outputs
Maker Hitachi Semiconductor
Total Page 13 Pages
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