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April 2012 Doc ID 17352 Rev 3 1/28
1
54ACxxxx, 54ACTxxxx
Rad-hard advanced high-speed 5 V CMOS logic series
Data brief
Features
■ 2 to 6 V operating voltage
■ High speed T
PD
= 4.5 ns (typ.)
■ Low DC power dissipation: 8 µA max.
■ Symmetrical 24 mA output characteristics
■ High noise immunity: 28% of min. V
CC
■
Power-down input protection
■ Balanced propagation delays
■ Improved electrical latch-up immunity
■ Controlled rise and fall times
■ Operating temperature: - 55 to 150 °C
■ Hermetic packages
■ Rad-hard: 300 kRad TID at any Mil1019 dose
rates
■ SEL immune to 110 MeV/cm²/mg LET ions
■ RHA QML-V qualified
■ Same die and electrical specification for
engineering and flight models
Description
The 54AC and 54ACT series represent over 60
product types with different high-speed CMOS
functions, specifically designed to meet the
radiation requirements of the aerospace industry.
They include a large set of gates, flip-flops,
multiplexers, counters, bus interfaces, and several
other functions. Their radiation hardness,
immunity from single event latch-up (SEL) and
single event upset (SEU), and housing in
hermetic packages make them suitable for the
most difficult environmental conditions. The
complete specification for each type is available
from the DSCC web site: www.dscc.dla.mil.
STMicroelectronics guarantees full compliance of
qualified parts with these DSCC specifications.
Flat-14
Flat-16
Flat-20
DIL-14
DIL-16
DIL-20
Flat-48
The upper metallic lid is not electrically connected to any
pins, nor to the IC die inside the package.
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