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What is HD74LVC244?

This electronic component, produced by the manufacturer "Hitachi Semiconductor", performs the same function as "Octal Buffers / Line Drivers with 3-state Outputs".


HD74LVC244 Datasheet PDF - Hitachi Semiconductor

Part Number HD74LVC244
Description Octal Buffers / Line Drivers with 3-state Outputs
Manufacturers Hitachi Semiconductor 
Logo Hitachi Semiconductor Logo 


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HD74LVC244A
Octal Buffers / Line Drivers with 3-state Outputs
ADE-205-110B(Z)
3rd Edition
December 1996
Description
The HD74LVC244A has eight line drivers with three state outputs in a 20 pin package. This device is a
non inverting buffer and has two active low enables (1G and 2G). Each enable independently controls four
buffers. 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
VCC = 2.0 V to 5.5 V
All inputs VIH (Max.) = 5.5 V (@VCC = 0 V to 5.5 V)
All outputs VOUT (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 ±24 mA (@VCC = 3.0 V to 5.5 V)
Function Table
Inputs
GA
HX
LH
LL
H : High level
L : Low level
X : Immaterial
Z : High impedance
Output Y
Z
H
L

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HD74LVC244 equivalent
HD74LVC244A
Switching Characteristics
Ta = –40 to 85°C
Item
Propagation delay time
Symbol VCC (V)
tPLH 2.7
tPHL 3.3±0.3
5.0±0.5
Output enable time
tZH 2.7
tZL 3.3±0.3
5.0±0.5
Output disable time
tZH 2.7
tLZ 3.3±0.3
5.0±0.5
Between outut pins skew *1 tOSLH
t OSHL
2.7
3.3±0.3
5.0±0.5
Min Typ Max Unit From (Input) To (Output)
— — 7.5 ns A
Y
1.5 — 6.5 ns
— — 5.0 ns
— — 9.0 ns G
Y
1.5 — 8.0 ns
— — 6.5 ns
— — 8.0 ns G
Y
1.5 — 7.0 ns
— — 6.0 ns
— — — ns
— — 1.0 ns
— — 1.0 ns
Input capacitance
CIN 2.7
— 3.0
Output capacitance
CO 2.7
— 15.0
Note: 1. This parameter is characterized but not tested.
tosLH = | tPLHm - tPLHn|, tosHL = | tPHLm - tPHLn|
pF
pF
5


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Part Details

On this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for HD74LVC244 electronic component.


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1. Octal Buffer, Eight Line Driver

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