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SNJ54HC590AW Datasheet 8-BIT BINARY COUNTER

Manufacturer: Texas Instruments

Download the SNJ54HC590AW datasheet PDF. This datasheet also includes the SNJ54HC590AJ variant, as both parts are published together in a single manufacturer document.

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Note: The manufacturer provides a single datasheet file (SNJ54HC590AJ-etcTI.pdf) that lists specifications for multiple related part numbers.

General Description

/ordering information NC − No internal connection The ’HC590A devices contain an 8-bit binary counter that feeds an 8-bit storage register.

The storage register has parallel outputs.

Separate clocks are provided for both the binary counter and storage register.

Overview

D 2-V to 6-V VCC Operation D High-Current 3-State Parallel Register Outputs Can Drive Up To 15 LSTTL Loads D Low Power Consumption, 80-µA Max ICC D Typical tpd = 14 ns SN54HC590A .

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Key Features

  • direct clear (CCLR) and count-enable (CCKEN) inputs. A ripple-carry output (RCO) is provided for cascading. Expansion is accomplished easily for two stages by connecting RCO of the first stage to CCKEN of the second stage. Cascading for larger count chains can be accomplished by connecting RCO of each stage to the counter clock (CCLK) input of the following stage. CCLK and the register clock (RCLK) inputs are positive-edge triggered. If both clocks are connected together, the counter state alway.

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