HD74HC244 Datasheet, PDF (1/10 Pages) Hitachi Semiconductor – Octal Buffers/Line Drivers/Line Receivers(with noninverted 3-state outputs)

HD74HC244
Octal Buffers/Line Drivers/Line Receivers
(with noninverted 3-state outputs)
Description
The HD74HC244 is a non-inverting buffer and has two active low enables (1G and 2G). Each enable
independently controls 4 buffers.
This device does not have schmitt trigger inputs.
Features
• High Speed Operation: t_pd = 11 ns typ (C_L = 50 pF)
• High Output Current: Fanout of 15 LSTTL Loads
• Wide Operating Voltage: V_CC = 2 to 6 V
• Low Input Current: 1 µA max
• Low Quiescent Supply Current: I_CC (static) = 4 µA max (Ta = 25°C)
Function Table
Inputs
G
A
H
X
L
H
L
L
Notes
H: high level
L: low level
X: irrelevant
Z: off (high-impedance) state of a 3-state output
Output
Y
Z
H
L