5962-917-2201MFA ,4-Bit Binary Counter, Asynchronous ResetFeaturesn I reduced by 50%CCLogic SymbolsPin Names DescriptionCEP Count Enable Parallel InputCET Co ..
5962-9205803MXA ,Digital Signal ProcessorNot Recommended for New Designs SGUS026G − APRIL ..
5962-9214701M2A ,Octal Buffers Drivers With 3-State Outputs SCBS099J − JANUARY 1991 − REVISED APR ..
5962-9217601MRA ,Quiet Series Octal Buffer/Line Driver w/TRI-STATE OutputsFeaturesn I and I reduced by 50%CC OZLogic Symbol Connection DiagramsIEE/IEC Pin Assignmentfor DIP ..
5962-9218701M2A ,Quiet Series Octal Bidirectional Transceiver w/TRI-STATE Outputsapplications. Current sinking capability is dynamic threshold performance24 mA at both the A and B ..
5962-9218701MSA ,Quiet Series Octal Bidirectional Transceiver w/TRI-STATE OutputsFeaturesn I and I reduced by 50%The ’ACQ/’ACTQ245 contains eight non-inverting bidirec- CC OZtional ..
74477007 , POWER-CHOKE WE-PD
744770112 , POWER-CHOKE WE-PD
74477110 , POWER-CHOKE WE-PD
744771122 , POWER-CHOKE WE-PD
744771168 , POWER-CHOKE WE-PD
7447745012 , POWER CHOKE WE-PD2
5962-917-2201MFA
4-Bit Binary Counter, Asynchronous Reset
54AC161• 54ACT161
Synchronous Presettable Binary Counter
General DescriptionThe ’AC/’ACT161are high-speed synchronous modulo-16
binary counters. Theyare synchronously presettableforap-
plicationin programmable dividers and havetwo typesof
Count Enable inputs plusa Terminal Count outputfor versa-
tilityin forming synchronous multistage counters. The ’AC/
’ACT161hasan asynchronous Master Reset inputthat over-
ridesall other inputsand forcesthe outputs LOW.
FeaturesICC reducedby 50% Synchronous countingand loading High-speed synchronous expansion Typical countrateof125 MHz Outputs source/sink24mA ’ACT161has TTL-compatible inputs Standard Microcircuit Drawing (SMD) ’AC161: 5962-89561 ’ACT161: 5962-91722
Logic Symbols Pin Names DescriptionCEP Count Enable Parallel Input
CET Count Enable Trickle Input Clock Pulse Input Asynchronous Master Reset Input
P0–P3 Parallel Data Inputs Parallel Enable Inputs
Q0–Q3 Flip-Flop Outputs Terminal Count Output
TRI-STATE®isa registeredtrademark ofNationalSemiconductorCorporation.
FACT™isatrademark ofFairchildSemiconductor Corporation.
DS100274-1
IEEE/IECDS100274-2
November 1998
54AC161
54ACT161
Synchronous
Presettable
Binary
Counter 1998 National Semiconductor Corporation DS100274
