Part number:
DM74LS190
Manufacturer:
National Semiconductor
File Size:
125.07 KB
Description:
Synchronous 4-bit up/down counters.
DM74LS190-NationalSemiconductor.pdf
Datasheet Details
These circuits are synchronous reversible up down counters The LS191 is a 4-bit binary counter and the LS190 is a BCD counter Synchronous operation is provided by having all flip-flops clocked simultaneously so that the outputs change simultaneously when so instructed by the steering logic This mode
DM74LS190 Features
* Y Counts 8-4-2-1 BCD or binary Y Single down up count control line Y Count enable control input Y Ripple clock output for cascading Y Asynchronously presettable with load control Y Parallel outputs Y Cascadable for n-bit applications Y Average propagation delay 20 ns Y Typical clock frequency 25 MHz
DM74LS190-NationalSemiconductor.pdf
Datasheet Details
DM74LS190
National Semiconductor
125.07 KB
Synchronous 4-bit up/down counters.
📁 Related Datasheet
📌 All Tags