Synchronous 4-bit Up/down Counter , Inc

The SN54/74LS669 is a synchronous 4-bit up/down Counter The LS669 is a 4-bit binary Counter For high speed counting applications, this presettable Counter features an internal carry lookahead for cascading purposes. By clocking all Flip-Flops simultaneously so the outputs change coincident with each other (when instructed to do so by the count enable inputs and internal gating) synchronous operation is provided. This helps to eliminate output counting spikes, normally associated with asynchronous (ripple-clock) count- ers. The four master-slave Flip-Flops are triggered on the rising (positive-going) edge of the Clock waveform by a buffered Clock input. By Freescale Semiconductor, Inc
Part Manufacturer Description Datasheet Samples
SN54LS669FK Texas Instruments LS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, CQCC20, CERAMIC, LCC-20
SN54LS669W Texas Instruments LS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, CDFP16
SN54LS669J Texas Instruments Synchronous 4-Bit Up/Down Counters 16-CDIP -55 to 125
SNJ54LS669FK Texas Instruments Synchronous 4-Bit Up/Down Counters 20-LCCC -55 to 125
SNJ54LS669J Texas Instruments Synchronous 4-Bit Up/Down Counters 16-CDIP -55 to 125
SNJ54LS669W Texas Instruments Synchronous 4-Bit Up/Down Counters 16-CFP -55 to 125
SN54LS669 's PackagesSN54LS669 's pdf datasheet
SN54LS669J
SN74LS669N
SN74LS669D




SN54LS669 Pinout, Pinouts
SN54LS669 pinout,Pin out
This is one package pinout of SN54LS669,If you need more pinouts please download SN54LS669's pdf datasheet.

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