54LS192 General Description
The 'LS192 is an updown BCD decade (8421) counter Separate Count Up and Count Down Clocks are used and in either counting mode the circuits operate synchronously The outputs change state synchronous with the LOW-to- HIGH transitions on the clock inputs Separate Terminal Count Up and Terminal Count Down out- puts are provided which are used as the clocks for a subse- quent stage without extra logic thus simplifying multistage counter designs Individual preset inputs allow the circuits to be used as programmable counters Both the Parallel Load (PL) and the Master Reset (MR) inputs asynchronously override the clocks
54LS192 Maximum Ratings
SupplyVoltage ......................................................7V
InputVoltage ........................................................7V
Operating Free Air Temperature Range
54LS ............................................-55to+ 125
DM74LS............................................... 0to +7
StorageTemperatureRange..............- 65to+ 150
54LS192 Connection Diagram
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