74F169 4-bit Up/down Binary Synchronous Counter

The 74F169 is a 4-bit synchronous, presettable Modulo 16 up/down Counter featuring an internal carry look-ahead for applications in high-speed counting designs. Synchronous operation is provided by having all Flip-Flops clocked simultaneously so that the outputs change coincident with each other when instructed by the Count Enable inputs and internal gating. This mode of operation eliminates the output spikes which are normally associated with asynchronous (ripple clock) Counters A buffered Clock input triggers the Flip-Flops on the Low-to-High transition of the Clock The Counter is fully programmable; that is, the outputs may be preset to either level.Presetting is synchronous with the Clock and takes place regardless of the levels of the Count Enable inputs. A Low level on the Parallel Enable (PE) input disables the Counter and causes the data at the D n input to be loaded into the Counter on the next Low-to-High transition of the Clock The direction of counting is controlled by the Up/Down (U/D) input; a High will cause the count to increase, a Low will cause the count to decrease.The carry look-ahead circuitry provides for n-bit synchronous applications without additional gating. Instrumental in accomplishing this function are two Count Enable inputs (CET, CEP) and a Terminal Count (TC) output. Both Count Enable inputs must be Low to count. The CET input is fed forward to enable the TC output. The TC output thus enabled will produce a Low output pulse with a duration approximately equal to the High level portion of the Q 0 output. The Low level TC pulse is used to enable successive cascaded stages.
By NXP Semiconductors
Part Manufacturer Description Datasheet Samples
SN74F169D-00R Texas Instruments F/FAST SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PDSO16
SN74F169D-00 Texas Instruments F/FAST SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PDSO16
SN74F169NE4 Texas Instruments F/FAST SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PDIP16, 0.300 INCH, ROHS COMPLIANT, PLASTIC, DIP-16
SN74F169DE4 Texas Instruments F/FAST SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PDSO16, GREEN, PLASTIC, MS-012AC, SOIC-16
SN74F169N Texas Instruments Synchronous 4-Bit Up/Down Binary Counter 16-PDIP 0 to 70
SN74F169N-10 Texas Instruments F/FAST SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PDIP16, PLASTIC, DIP-16
SN74F169DR Texas Instruments F/FAST SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PDSO16, PLASTIC, SO-16
SN74F169DG4 Texas Instruments F/FAST SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PDSO16, GREEN, PLASTIC, MS-012AC, SOIC-16
SN74F169D Texas Instruments Synchronous 4-Bit Up/Down Binary Counter 16-SOIC 0 to 70
SN74F169DRE4 Texas Instruments F/FAST SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PDSO16, PLASTIC, SO-16
74F169 's Packages74F169 's pdf datasheet



74F169 Pinout, Pinouts
74F169 pinout,Pin out
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