SN74HC590AN

Counter Dividers Overview

The SN74HC590AN is an 8-bit binary counter with a storage register and 3-state outputs, manufactured by Texas Instruments. It operates on a 2 V to 6 V supply voltage within a -40°C to 85°C temperature range. The device features separate positive-edge triggered clocks for the counter (CCLK) and register (RCLK), a direct clear input (CCLR), and a count enable input (CCKEN). A ripple-carry output (RCO) facilitates cascading. It is housed in a 16-pin PDIP package.

Counter Dividers Feature Summary

• Contains an 8-bit binary counter feeding an 8-bit storage register with parallel outputs.
• Features high-current 3-state parallel outputs capable of driving up to 15 LSTTL loads.
• Includes a ripple-carry output (RCO) for easy cascading of multiple stages.

Counter Dividers Applications

• Digital counting systems requiring latched output states
• Cascaded multi-stage binary counters
• Data storage registers in microprocessor interfaces

Counter Dividers Procurement Notes

Verify the manufacturer designation as Texas Instruments, as Burr Brown was acquired by TI. Confirm the 'N' suffix indicates a 16-pin PDIP tube package. Ensure the component meets the specified -40°C to 85°C operating temperature range and RoHS compliance requirements for your specific application environment.

Counter Dividers Selection Notes

Select this component when an 8-bit synchronous binary counter with independent register storage is required. It is suitable for designs needing 3-state outputs for bus sharing. Consider the HC logic family speed and power characteristics relative to other TTL-compatible families if interface compatibility is critical.

Counter Dividers Part Context

This part belongs to the SN74HC590A series, which includes variants like SN74HC590ADT and SN74HC590ADWR. These devices share identical internal functionality but differ in packaging (SOIC, SOIC-Wide) and shipping quantities. The SN74HC590AN specifically denotes the through-hole PDIP version.

Counter Dividers Replacement Considerations

SN74HC590ANE4 is a qualified equivalent from Texas Instruments with identical specifications and pinout.

Counter Dividers FAQ

How are the counter and register clocks connected?

The device provides separate positive-edge triggered clock inputs: CCLK for the binary counter and RCLK for the storage register. They can be tied together or operated independently.

What is the function of the RCO pin?

The Ripple-Carry Output (RCO) indicates when the counter reaches its maximum value (all 1s). It is used to cascade multiple counters by connecting it to the Count Enable (CCKEN) of the next stage.