Datasheet Details
| Part number | SN54LS190 |
|---|---|
| Manufacturer | Motorola Semiconductor (now NXP Semiconductors) |
| File Size | 310.02 KB |
| Description | PRESETTABLE BCD/DECADE UP/DOWN COUNTER |
| Datasheet |
 SN54LS190 Datasheet
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General Description
The LS190 is a synchronous Up / Down BCD Decade Counter and the LS191 is a synchronous Up / Down 4-Bit Binary Counter.
The operating modes of the LS190 decade counter and the LS191 binary counter are identical, with the only difference being the count sequences as noted in the state diagrams.
Key Features
- e Min 25 35 20 5.0 40 Typ Max Unit ns ns ns ns ns VCC = 5.0 V Test Conditions.