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SNJ54HC191W - 4-BIT SYNCHRONOUS UP/DOWN BINARY COUNTERS

Download the SNJ54HC191W datasheet PDF. This datasheet also covers the SNJ54HC191J variant, as both devices belong to the same 4-bit synchronous up/down binary counters family and are provided as variant models within a single manufacturer datasheet.

General Description

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.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (SNJ54HC191J-etcTI.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer

Other Datasheets by Texas Instruments

Part Number Description
SNJ54HC191FK 4-BIT SYNCHRONOUS UP/DOWN BINARY COUNTERS
SNJ54HC191J 4-BIT SYNCHRONOUS UP/DOWN BINARY COUNTERS
SNJ54HC193FK 4-BIT SYNCHRONOUS UP/DOWN COUNTERS
SNJ54HC193J 4-BIT SYNCHRONOUS UP/DOWN COUNTERS
SNJ54HC193W 4-BIT SYNCHRONOUS UP/DOWN COUNTERS

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
SN54HC191, SN74HC191 4ĆBIT SYNCHRONOUS UP/DOWN BINARY COUNTERS D Wide Operating Voltage Range of 2 V to 6 V D Outputs Can Drive Up To 10 LSTTL Loads D Low Power Consumption, 80-µA Max ICC D Typical tpd = 13 ns D ±4-mA Output Drive at 5 V D Low Input Current of 1 µA Max D Single Down/Up Count-Control Line D Look-Ahead Circuitry Enhances Speed of Cascaded Counters D Fully Synchronous in Count Modes D Asynchronously Presettable With Load Control 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.