4-Bit Synchronous Binary Counters

These synchronous, presettable Counters SN74HC163 feature an internal carry look-ahead for application in high-speed counting designs. The ?HC163 devices are 4-bit binary Counters 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 (ENP, ENT) inputs and internal gating. This mode of operation eliminates the output counting spikes normally associated with synchronous (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 CAN be preset to any number between 0 and 9 or 15. As presetting is synchronous, setting up a low level at the load input disables the Counter and causes the outputs to agree with the setup data after the next Clock pulse, regardless of the levels of the enable inputs.
The clear function for the ?HC163 devices is synchronous. A low level at the clear (CLR) input sets all four of the Flip-Flop outputs low after the next low-to-high transition of CLK, regardless of the levels of the enable inputs. This synchronous clear allows the count length to be modified easily by decoding the Q outputs for the maximum count desired. The active-low output of the Gate used for decoding is connected to CLR to synchronously clear the Counter to 0000 (LLLL).
The carry look-ahead circuitry provides for cascading Counters for n-bit synchronous applications without additional gating. ENP, ENT, and a ripple-carry output (RCO) are instrumental in accomplishing this function. Both ENP and ENT must be high to count, and ENT is fed forward to enable RCO. Enabling RCO produces a high-level pulse while the count is maximum (9 or 15 with QA high). This high-level overflow ripple-carry pulse CAN be used to enable successive cascaded stages. Transitions at ENP or ENT are allowed, regardless of the level of CLK.
These Counters feature a fully independent Clock circuit. Changes at control inputs (ENP, ENT, or LOAD) that modify the operating mode have no effect on the contents of the Counter until clocking occurs. The function of the Counter (whether enabled, disabled, loading, or counting) is dictated solely by the conditions meeting the stable setup and hold times.
By Texas Instruments
Part Manufacturer Description Datasheet Samples
SN74HC163D Texas Instruments 4-Bit Synchronous Binary Counters 16-SOIC -40 to 85
SN74HC163DTE4 Texas Instruments 4-Bit Synchronous Binary Counters 16-SOIC -40 to 85
SN74HC163PWR Texas Instruments 4-Bit Synchronous Binary Counters 16-TSSOP -40 to 85
SN74HC163DBR Texas Instruments IC HC/UH SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, PDSO16, GREEN, PLASTIC, SSOP-16, Counter
SN74HC163DTG4 Texas Instruments HC/UH SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, PDSO16, GREEN, PLASTIC, MS-012AC, SOIC-16
SN74HC163PWRE4 Texas Instruments HC/UH SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, PDSO16, GREEN, PLASTIC, TSSOP-16
SN74HC163DT Texas Instruments 4-Bit Synchronous Binary Counters 16-SOIC -40 to 85
SN74HC163PWG4 Texas Instruments HC/UH SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, PDSO16, GREEN, PLASTIC, TSSOP-16
SN74HC163DBRE4 Texas Instruments HC/UH SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, PDSO16, GREEN, PLASTIC, SSOP-16
SN74HC163N Texas Instruments 4-Bit Synchronous Binary Counters 16-PDIP -40 to 85
SN74HC163 's PackagesSN74HC163 's pdf datasheet
SN74HC163D SOIC
SN74HC163DBR SSOP
SN74HC163DBRE4 SSOP
SN74HC163DBRG4 SSOP
SN74HC163DE4 SOIC
SN74HC163DG4 SOIC
SN74HC163DR SOIC
SN74HC163DRE4 SOIC
SN74HC163DRG4 SOIC
SN74HC163DT SOIC
SN74HC163DTE4 SOIC
SN74HC163DTG4 SOIC
SN74HC163N PDIP
SN74HC163NE4 PDIP
SN74HC163NSR SO
SN74HC163NSRE4 SO
SN74HC163NSRG4 SO
SN74HC163PW TSSOP
SN74HC163PWE4 TSSOP
SN74HC163PWG4 TSSOP
SN74HC163PWR TSSOP
SN74HC163PWRE4 TSSOP
SN74HC163PWRG4 TSSOP
SN74HC163PWT TSSOP
SN74HC163PWTE4 TSSOP
SN74HC163PWTG4 TSSOP




SN74HC163 Pinout, Pinouts
SN74HC163 pinout,Pin out
This is one package pinout of SN74HC163,If you need more pinouts please download SN74HC163's pdf datasheet.

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