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Partname: | CD54ACT191F3A |
Description: | PRESETTABLE SYNCHRONOUS 4-BIT BINARY UP/DOWN COUNTER |
Manufacturer: | Texas Instruments |
Package: | J |
Pins: | 16 |
Oper. temp.: | -55 to 125 |
Datasheet: | PDF (53.6K). Click here to download *) |
The CD54AC191 and CD54ACT191 are asynchronously presettable binary up/down synchronous counters that utilize Advanced CMOS Logic technology. Presetting the counter to the number on preset data inputs (P0-P3) is accomplished by setting LOW the asynchronous parallel load input (PL). Counting occurs when PL is HIGH, Count Enable (CE) is LOW, and the Up/Down (U/D) input is either LOW for upcounting or HIGH for down-counting. The counter is incremented or decremented synchronously with the LOW-toHIGH transition of the clock. |
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Click here to download CD54ACT191F3A Datasheet*) |
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