54ACQ244 Datasheet, PDF (1/8 Pages) National Semiconductor (TI) – Quiet Series Octal Buffer/Line Driver with TRI-STATE Outputs

August 1998
54ACQ244 • 54ACTQ244
Quiet Series Octal Buffer/Line Driver with TRI-STATE^®
Outputs
General Description
The ’ACQ/’ACTQ244 is an octal buffer and line driver de-
signed to be employed as a memory address driver, clock
driver and bus oriented transmitter or receiver which pro-
vides improved PC board density. The ACQ/ACTQ utilizes
NSC Quiet Series technology to guarantee quiet output
switching and improved dynamic threshold performance.
FACT Quiet Series™ features GTO™ output control and un-
dershoot corrector in addition to a split ground bus for supe-
rior performance.
Features
n I_CC and I_OZ reduced by 50%
n Guaranteed simultaneous switching noise level and
dynamic threshold performance
n Improved latch-up immunity
n TRI-STATE outputs drive bus lines or buffer memory
address registers
n Outputs source/sink 24 mA
n Faster prop delays than the standard ’AC/’ACT244
n 4 kV minimum ESD immunity
n Standard Microcircuit Drawing (SMD)
— ’ACTQ244: 5962-92186
— ’ACQ244: 5962-92176
Logic Symbol
Connection Diagrams
IEE/IEC
Pin Assignment
for DIP and Flatpak
Pin Names
OE₁, OE₂
I₀–I ₇
O₀–O ₇
DS100236-1
Description
TRI-STATE Output Enable Inputs
Inputs
Outputs
GTO™ is a trademark of National Semiconductor Corporation.
TRI-STATE^® is a registered trademark of National Semiconductor Corporation.
FACT^® is a registered trademark of Fairchild Semiconductor Corporation.
FACT Quiet Series™ is a trademark of Fairchild Semiconductor Corporation.
© 1998 National Semiconductor Corporation DS100236
DS100236-2
Pin Assignment
for LCC
DS100236-3
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