SYNCHRONOUS 4-BIT UP/DOWN BINARY COUNTERS

These synchronous 4-bit up/down binary presettable Counters SN54ALS169B SN54AS169A SN74ALS169B SN74AS169A feature an internal carry look-ahead circuitry 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 (ENP, ENT) inputs and internal gating. This mode of operation eliminates the output counting spikes normally associated with asynchronous (ripple-clock) Counters A buffered Clock (CLK) input triggers the four Flip-Flops on the rising (positive-going) edge of the Clock waveform. These Counters are fully programmable; that is, they may be preset to either level. The load-input circuitry allows loading with the carry-enable output of cascaded Counters Because loading is synchronous, setting up a low level at the load (LOAD) input disables the Counter and causes the outputs to agree with the data inputs after the next Clock pulse . By Texas Instruments
Part Manufacturer Description Datasheet Samples
SN54ALS169BJ Texas Instruments Synchronous 4-Bit Up/Down Binary Counters 16-CDIP -55 to 125
SN54ALS169B 's PackagesSN54ALS169B 's pdf datasheet
SN54AS169A




SN54ALS169B Pinout, Pinouts
SN54ALS169B pinout,Pin out
This is one package pinout of SN54ALS169B,If you need more pinouts please download SN54ALS169B's pdf datasheet.

SN54ALS169B Application circuits
SN54ALS169B circuits
This is one application circuit of SN54ALS169B,If you need more circuits,please download SN54ALS169B's pdf datasheet.


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