54ACTQ841
Quiet Series 10-Bit Transparent Latch with TRI-STATE
®
Outputs
General Description
The ’ACTQ841 bus interface latch is designed to eliminate
the extra packages required to buffer existing latches and
provide extra data width for wider address/data paths or
buses carrying parity. The ’841 is a 10-bit transparent latch,
a 10-bit version of the ’373. The ’ACTQ841 utilizes NSC
Quiet Series technology to guarantee quiet output switching
and improved dynamic threshold performance, FACT Quiet
Series™ features GTO™ output control and undershoot cor-
rector in addition to a split ground bus for superior perfor-
mance.
Features
n Guaranteed simultaneous switching noise level and
dynamic threshold performance
n Inputs and outputs on opposite sides of package allow
easy interface with microprocessors
n Improved latch-up immunity
n Outputs source/sink 24 mA
n ’ACTQ841 has TTL-compatible inputs
n Standard Microcircuit Drawing (SMD) 5962-92200
Logic Symbols
Pin Names Description
D
0
–D
9
Data Inputs
O
0
–O
9
TRI-STATE Outputs
OE Output Enable
LE Latch Enable
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.
DS100250-1
DS100250-2
August 1998
54ACTQ841
Quiet
Series
10-Bit
T
ransparent
Latch
with
TRI-ST
A
T
E
Outputs
© 1998 National Semiconductor Corporation DS100250 www.national.com