| Part Number | DM74LS190 |
| Manufacturer | National Semiconductor |
| Title | Synchronous 4-Bit Up/Down Counters |
| Description | These circuits are synchronous reversible up down counters The LS191 is a 4-bit binary counter and the LS190 is a BCD counter Synchronous operatio... |
| 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 propag...
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| Datasheet |
 DM74LS190 Datasheet
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