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Part Name(s) : HD74LS163A Hitachi
Hitachi -> Renesas Electronics
Description : SYNCHRONOUS 4-BIT BINARY COUNTERS (SYNCHRONOUS clear) View

SYNCHRONOUS 4-BIT BINARY COUNTERS (SYNCHRONOUS clear)

Part Name(s) : AC163M CD54AC163 CD54AC163F CD74AC163 CD54AC163F3A CD74AC163E CD74AC163EE4 CD74AC163M CD74AC163M96 CD74AC163MG4 TI
Texas Instruments
Description : 4-BIT SYNCHRONOUS BINARY COUNTERS View

description/ordering information
The ’AC163 devices are 4-BIT BINARY COUNTERS. These SYNCHRONOUS, presettable COUNTERS feature an internal carry look-ahead for application in high-speed counting designs.

● Internal Look-Ahead for Fast Counting
● Carry Output for n-Bit Cascading
SYNCHRONOUS Counting
SYNCHRONOUSly Programmable

Part Name(s) : HD74LS393FPEL HD74LS393P HD74LS393RPEL HD74LS393 Renesas
Renesas Electronics
Description : Dual 4-BIT BINARY COUNTERS View

Dual 4-BIT BINARY COUNTERS

This circuit contains eight master-slave flip-flops and additional gating to implement two individual four-bit COUNTERS.
The HD74LS393 comprises two independent four-bit BINARY COUNTERS each having a clear and a clock input.
N-bit BINARY counter can be implemented with each package providing the capability of divide-by-258.

Part Name(s) : SN74HC191DG4 SN74HC191DRG4 SN74HC191NS TI
Texas Instruments
Description : 4-BIT SYNCHRONOUS UP/DOWN BINARY COUNTERS View

description/ordering information
The ’HC191 devices are 4-BIT SYNCHRONOUS, reversible, 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.

● Wide Operating Voltage Range of 2 V to 6 V
● Outputs Can Drive Up To 10 LSTTL Loads
● Low Power Consumption, 80-µA Max ICC
● Typical tpd = 13 ns
● ±4-mA Output Drive at 5 V
● Low Input Current of 1 µA Max
● Single Down/Up Count-Control Line
● Look-Ahead Circuitry Enhances Speed of Cascaded COUNTERS
● Fully SYNCHRONOUS in Count Modes
● ASYNCHRONOUSly Presettable With Load Control

 


Part Name(s) : ACT163M CD54ACT163 CD54ACT163F3A CD54ACT163F CD74ACT163 CD74ACT163E CD74ACT163EE4 CD74ACT163M CD74ACT163M96 CD74ACT163M96E4 CD74ACT163MG4 TI
Texas Instruments
Description : 4-BIT SYNCHRONOUS BINARY COUNTERS View

description/ordering information
The ’ACT163 devices are 4-BIT BINARY COUNTERS. These SYNCHRONOUS, presettable COUNTERS feature an internal carry look-ahead for application 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 (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.
The COUNTERS are fully programmable; that is, they can be preset to any number between 0 and 9 or 15. Presetting is SYNCHRONOUS; therefore, 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.

● Inputs Are TTL-Voltage Compatible
● Internal Look-Ahead for Fast Counting
● Carry Output for n-Bit Cascading
SYNCHRONOUS Counting
SYNCHRONOUSly Programmable

Part Name(s) : AC161M CD54AC161 CD74AC161 CD54AC161F3A CD74AC161E CD74AC161EE4 CD74AC161M CD74AC161M96 CD74AC161M96E4 CD74AC161M96G4 CD74AC161ME4 CD74AC161MG4 TI
Texas Instruments
Description : 4-BIT SYNCHRONOUS BINARY COUNTERS View

description/ordering information
The ’AC161 devices are 4-BIT BINARY COUNTERS. These SYNCHRONOUS, presettable COUNTERS feature an internal carry look-ahead for application in high-speed counting These devices are fully programmable; that is, they can be preset to any number between 0 and 9 or 15. Presetting is SYNCHRONOUS; therefore, 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.

● Internal Look-Ahead for Fast Counting
● Carry Output for n-Bit Cascading
SYNCHRONOUS Counting
SYNCHRONOUSly Programmable
● SCR-Latchup-Resistant CMOS Process and Circuit Design
● Exceeds 2-kV ESD Protection per MIL-STD-883, Method 3015

Part Name(s) : MM54HC190 MM54HC190J MM54HC191 MM54HC191J MM74HC190 MM74HC190J MM74HC190N MM74HC191 MM74HC191J MM74HC191N National-Semiconductor
National ->Texas Instruments
Description : SYNCHRONOUS Decade Up/Down COUNTERS with Mode Control, SYNCHRONOUS BINARY Up/Down COUNTERS with Mode Control View

General Description
These high speed SYNCHRONOUS COUNTERS utilize advanced silicon-gate CMOS technology. They possess the high noise immunity and low power consumption of CMOS technology, along with the speeds of low power Schottky TTL. These circuits are SYNCHRONOUS, reversible, up/down COUNTERS. The MM54HC191/MM74HC191 are 4-BIT BINARY COUNTERS and the MM54HC190/MM74HC190 are BCD COUNTERS.
SYNCHRONOUS operation is provided by having all flip-flops clocked simultaneously, so that the outputs change simultaneously when so 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 master-slave flip-flops are triggered on a low-to-high level transition of the clock input, if the enable input is low. A high at the enable input inhibits counting. The direction of the count is determined by the level of the down/up input. When low, the counter counts up and when high, it counts down.

Features
■ Level changes on Enable or Down/Up can be made re gardless of the level of the clock input
■ Wide power supply range: 2–6V
■ Low quiescent supply current: 80 μA maximum  (74HC Series)
■ Low input current: 1 μA maximum

 

Part Name(s) : SN54ALS193A SN74ALS193A SN74ALS193AD SN74ALS193ANE4 SN54ALS193AJ ALS193A SN74ALS193AN 5962-8869801EA SNJ54ALS193AJ 5962-8869801FA SNJ54ALS193AW Texas-Instruments
Texas Instruments
Description : SYNCHRONOUS 4-BIT UP/DOWN BINARY COUNTERS WITH DUAL CLOCK AND CLEAR View

description
The ’ALS193A 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.

● Look-Ahead Circuitry Enhances Cascaded COUNTERS
● Fully SYNCHRONOUS in Count Modes
● Parallel ASYNCHRONOUS Load for Modulo-N Count Lengths
● ASYNCHRONOUS Clear
● Package Options Include Plastic Small-Outline (D) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (N) and Ceramic (J) 300-mil DIPs

Part Name(s) : 5962-8869801EA 5962-8869801FA ALS193A SN54ALS193A SN54ALS193AFK SN54ALS193AJ SN74ALS193A SN74ALS193AD SN74ALS193ADR SN74ALS193ADRE4 SN74ALS193ADRG4 SN74ALS193AN SN74ALS193ANE4 SNJ54ALS193AJ SNJ54ALS193AW SNJ54ALS193AFK TI
Texas Instruments
Description : SYNCHRONOUS 4-BIT UP/DOWN BINARY COUNTERS WITH DUAL CLOCK AND CLEAR View

description
The ’ALS193A 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 (rippleclock) COUNTERS.

● Look-Ahead Circuitry Enhances Cascaded COUNTERS
● Fully SYNCHRONOUS in Count Modes
● Parallel ASYNCHRONOUS Load for Modulo-N Count Lengths
● ASYNCHRONOUS Clear
● Package Options Include Plastic Small-Outline (D) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (N) and Ceramic (J) 300-mil DIPs

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