4-Bit Synchronous Up/Down Binary Counters With Dual Clock And Clear

The SN74ALS193A are synchronous, reversible, 4-bit up/down binary Counters Synchronous counting operation is provided by having all Flip-Flops clocked simultaneously so that the outputs change coincident with each other when instructed by the steering Logic This mode of operation eliminates the output counting spikes normally associated with asynchronous (ripple-clock) Counters
The outputs of the four Flip-Flops are triggered on a low-to-high-level transition of either count Clock (UP or DOWN) input. The direction of the count is determined by which count input is pulsed while the other count input is high.
All four Counters are fully programmable; that is, each output may be preset to either level by placing a low on the load () input and entering the desired data at the data inputs. The output changes to agree with the data inputs independently of the count pulses. This feature allows the Counters to be used as modulo-N dividers by simply modifying the count length with the preset inputs.
A high level applied to the clear (CLR) input forces all outputs to the low level. The clear function is independent of the count and i nputs. The UP, DOWN, and inputs are buffered to lower the drive requirement, which significantly reduces the loading on, or current required by, Clock Drivers etc., for long parallel words.
These Counters are designed to be cascaded without the need for external circuitry. The borrow () output produces a low-level pulse while the count is zero (all Q outputs low) and the DOWN input is low. Similarily, the carry (CO) output produces a low-level pulse while the count is 9 or 15 (all Q outputs high) and the UP input is low. The Counters CAN then be easily cascaded by feeding and to the count-down and count-up inputs, respectively, of the succeeding Counter
The SN54ALS193A is characterized for operation over the full military temperature range of -55?C to 125?C. The SN74ALS193A is characterized for operation from 0?C to 70?C.
By Texas Instruments
Part Manufacturer Description Datasheet Samples
SN74ALS193ANSRE4 Texas Instruments ALS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PDSO16, GREEN, PLASTIC, SOP-16
SN74ALS193ANE4 Texas Instruments 4-Bit Synchronous Up/Down Binary Counters With Dual Clock and Clear 16-PDIP 0 to 70
SN74ALS193ANSR Texas Instruments ALS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PDSO16, GREEN, PLASTIC, SOP-16
SN74ALS193ADG4 Texas Instruments ALS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PDSO16, GREEN, PLASTIC, MS-012AC, SOIC-16
SN74ALS193ADE4 Texas Instruments ALS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PDSO16, GREEN, PLASTIC, MS-012AC, SOIC-16
SN74ALS193AD Texas Instruments 4-Bit Synchronous Up/Down Binary Counters With Dual Clock and Clear 16-SOIC 0 to 70
SN74ALS193ANSRG4 Texas Instruments ALS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PDSO16, GREEN, PLASTIC, SOP-16
SN74ALS193ADR Texas Instruments 4-Bit Synchronous Up/Down Binary Counters With Dual Clock and Clear 16-SOIC 0 to 70
SN74ALS193ADRG4 Texas Instruments 4-Bit Synchronous Up/Down Binary Counters With Dual Clock and Clear 16-SOIC 0 to 70
SN74ALS193ADRE4 Texas Instruments 4-Bit Synchronous Up/Down Binary Counters With Dual Clock and Clear 16-SOIC 0 to 70
SN74ALS193A 's PackagesSN74ALS193A 's pdf datasheet
SN74ALS193AD SOIC
SN74ALS193ADE4 SOIC
SN74ALS193ADG4 SOIC
SN74ALS193ADR SOIC
SN74ALS193ADRE4 SOIC
SN74ALS193ADRG4 SOIC
SN74ALS193AN PDIP
SN74ALS193ANE4 PDIP
SN74ALS193ANSR SO
SN74ALS193ANSRE4 SO
SN74ALS193ANSRG4 SO




SN74ALS193A Pinout, Pinouts
SN74ALS193A pinout,Pin out
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