54ACTQ543
Quiet Series Octal Registered Transceiver with
TRI-STATE
®
Outputs
General Description
The ACTQ543 is a non-inverting octal transceiver containing
two sets of D-type registers for temporary storage of data
flowing in either direction. Separate Latch Enable and Out-
put Enable inputs are provided for each register to permit in-
dependent input and output control in either direction of data
flow.
The ACTQ utilizes NSC Quiet Series technology to guaran-
tee quiet output switching and improved dynamic threshold
performance. FACT Quiet Series™ features GTO™ output
control and undershoot corrector in addition to a split ground
bus for superior performance.
Features
n Guaranteed simultaneous switching noise level and
dynamic threshold performance
n 8-bit octal latched transceiver
n Separate controls for data flow in each direction
n Back-to-back registers for storage
n Outputs source/sink 24 mA
n 4 kV minimum ESD immunity
Ordering Code
Military Package
Number
Package Description
54ACTQ543DMQB J24A 24-Lead Ceramic Dual-In-Line
54ACTQ543FMQB W24C 24-Lead Cerpack
54ACTQ543LMQB E28A 24-Lead Ceramic Leadless
Chip Carrier, Type C
Logic Symbols
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.
DS100233-1
IEEE/IEC
DS100233-4
August 1998
54ACTQ543
Quiet
Series
Octal
Registered
T
ransceiver
with
TRI-ST
A
T
E
Outputs
© 1998 National Semiconductor Corporation DS100233 www.national.com