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HD74LV244

Octal Buffers / Drivers with 3-state Outputs

Hitachi -> Renesas Electronics 

HD74LV244A

Octal Buffers / Drivers with 3-state Outputs

ADE-205-246 (Z)

1st Edition

March 1999

Description

The HD74LV244A has eight line drivers with three-state outputs in a 20-pin package. Four non-inverters

are included in one circuit. Each circuit can be independently controlled by the enable signal 1OE or 2OE,

which enables outputs when receiving a low-level signal. Low-voltage operation is suitable for battery-

powered products (e.g., notebook computers), and the low-power consumption extends the battery life.

Features

• VCC = 2.0 V to 5.5 V operation

• All inputs VIH (Max.) = 5.5 V (@VCC = 0 V to 5.5 V)

• All outputs VO (Max.) = 5.5 V (@VCC = 0 V)

• Typical VOL ground bounce < 0.8 V (@VCC = 3.3 V, Ta = 25°C)

• Typical VOH undershoot > 2.3 V (@VCC = 3.3 V, Ta = 25°C)

• Output current ±8 mA (@VCC = 3.0 V to 3.6 V), ±16 mA (@VCC = 4.5 V to 5.5 V)

Function Table

Inputs

OE

A

L

H

L

L

H

X

Note:

H: High level

L: Low level

X: Immaterial

Z: High impedance

Output Y

H

L

Z

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