SN74193

      The SN74193 is desugned as synchronous 4-bit up/down counters (dual clock with clear).These SN74193 monolithic circuits are synchronous reversible (up/down) counters having a complexity of 55 equivalent gates.Synchronous operation is provided by having all flip-dlops clocked simltaneously so that the outputs change coincidently with each other when so instructed by the steering logic.This mode of operation eliminates the output counting spikes which are normally associated with asynchronous (ripple clock) counters.
      SN74193 has four features.The first one is that its cascading circuitry would be provided internally.The second one is that it would have synchronous operation.The third one is it would have individual preset to each flip-flop.The fourth one is that it would have fully independent clear input.That are all the features.
      Some absolute maximum ratings of SN74193 over operating free-air temperature range (unless otherwise noted) have been concluded into several points as follow.The first one is about its supply voltage whici would be 7V.The second one is about its input voltage which would be 5.5V.The third one is about its operating free-air temperature range which wold be from 0 to +70°C.The fourth one is about its storage temperature range which would be -65 to +150°C.Also some recommended operating conditions have been concluded into several points as follow.The first one is about its supply voltage which would be min 4.75V and typ 5V and max 5.25V.The second oen si about its high level output current which would be max -0.4mA.The next one is about its low level output current which would be max 16mA.The next one is about its clock frequency which would be min 0 and max 25MHz.The next one is about its width of any input pulse which would be min 20ns.The next one is about its data setup time which would be min 20ns.The next one is about its operating free-air temperature which would be from 0 to 70°C.And so on.For more information of SN74193 please contact us.