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HD74HC669 |
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| Part Number | HD74HC669 |
| Manufacturer | Renesas (https://www.renesas.com/) |
| Description | This synchronous presettable decade counter features an internal carry look-ahead for cascading in high-speed counting applications. Synchronous operation is provided by having all flip-flops clocked ... |
| Features |
an internal carry look-ahead for cascading in high-speed counting applications. Synchronous operation is provided by having all flip-flops clocked simultaneously so that the outputs change coincident with each other when so instructed by the count-enable inputs and internal gating. This mode of operation helps eliminate the output counting spikes that are normally associated with asynchronous (ripple-clock) counters.
A buffered clock input triggers the four master-slave flip-flops on the rising (positive going) edge of the clock waveform. This counter is fully programmable; that is, the output... |
| Document |
 HD74HC669 Data Sheet
PDF 216.77KB |
| Distributor | Stock | Price | Buy |
|---|
| No. | Parte # | Fabricante | Descripción | Hoja de Datos |
|---|---|---|---|---|
| 1 | HD74HC668 |
Hitachi Semiconductor |
Synchronous UP/Down Decade/4-bit binary Counter |
|
| 2 | HD74HC668 |
Renesas |
Synchronous UP/Down Decade Counter |
|
| 3 | HD74HC669 |
Hitachi Semiconductor |
Synchronous UP/Down Decade/4-bit binary Counter |
|
| 4 | HD74HC620 |
Hitachi Semiconductor |
Octal Bus Transceivers |
|
| 5 | HD74HC620 |
Renesas |
Octal Bus Transceivers |
|