HD74LV244A Datasheet, PDF (1/15 Pages) Hitachi Semiconductor – Octal Buffers / Drivers with 3-state Outputs

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
• V_CC = 2.0 V to 5.5 V operation
• All inputs V_IH (Max.) = 5.5 V (@V_CC = 0 V to 5.5 V)
• All outputs V_O (Max.) = 5.5 V (@V_CC = 0 V)
• Typical V_OL ground bounce < 0.8 V (@V_CC = 3.3 V, Ta = 25°C)
• Typical V_OH undershoot > 2.3 V (@V_CC = 3.3 V, Ta = 25°C)
• Output current ±8 mA (@V_CC = 3.0 V to 3.6 V), ±16 mA (@V_CC = 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