This datasheet includes multiple variants, all published together in a single manufacturer document.
| Part number | HD74HC191 |
|---|---|
| Datasheet | HD74HC191 HD74HC190 Datasheet (PDF) |
| File Size | 342.29 KB |
| Manufacturer | Renesas |
| Description | Synchronous Up/Down 4-bit Binary Counter |
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The HD74HC190 is a 4-bit decade counter and the HD74HC191 is a 4-bit binary counter. Synchronous counting operation is provided by having all flip-flops clocked simultaneously so that the outputs change coincident with each other when so instructed by the steering logic. This mode of operation eliminates the output counting spikes normally associated with asynchronous (ripple clock) counters.
| Brand Logo | Part Number | Description | Other Manufacturers |
|---|---|---|---|
 |
HD74HC191 | Synchronous Up/Down Decade/4-bit Binary Counter(Single Clock Line) | Hitachi Semiconductor |
| Part Number | Description |
|---|---|
| HD74HC190 | Synchronous Up/Down Decade Counter |
| HD74HC192 | Synchronous Up/Down Decade Counter |
| HD74HC193 | Synchronous Up/Down 4-bit Binary Counter |
| HD74HC194 | 4-bit Bidirectional Universal Shift Register |
| HD74HC195 | 4-bit Parallel-Access Shift Register |
| HD74HC10 | Triple 3-input NAND Gates |
| HD74HC107 | Dual J-K Flip-Flops |
| HD74HC108 | Dual J-K Flip-Flops |
| HD74HC109 | Dual J-K Flip-Flops |
| HD74HC11 | Triple 3-input AND Gates |
