SN74HC590AN-NG

Counter Dividers Overview

The SN74HC590AN is an 8-bit binary counter with a storage register, manufactured by Texas Instruments in the HC logic series. It operates on a supply voltage of 2 V to 6 V and features high-current 3-state parallel outputs capable of driving up to 15 LSTTL loads. The device includes separate clocks for the counter and register, direct clear (CCLR), count-enable (CCKEN), and ripple-carry output (RCO) for cascading. It is housed in a 16-pin PDIP package and supports operation from -40°C to 85°C.

Counter Dividers Feature Summary

• Contains an 8-bit binary counter feeding an 8-bit storage register with parallel outputs.
• Features high-current 3-state outputs for bus-driven applications.
• Includes direct clear and count-enable inputs for precise control.
• Provides a ripple-carry output to facilitate easy cascading.

Counter Dividers Applications

• Digital counting systems
• Frequency division circuits
• Timing sequence generation

Counter Dividers Procurement Notes

Verify the specific ordering suffix against the manufacturer's current Package Option Addendum to confirm active status and packaging details. Ensure the component matches the required logic family and pinout configuration for your design. Cross-reference the datasheet revision date to validate electrical characteristics and timing requirements before finalizing procurement.

Counter Dividers Selection Notes

Select this component when an 8-bit synchronous binary counter with latched outputs is required. The HC logic series offers low power consumption and compatibility with standard CMOS interfaces. Consider the 3-state outputs if bus isolation is needed. Verify that the operating temperature range and supply voltage meet the system specifications.

Counter Dividers Part Context

This part belongs to the SN74HC590A family, which integrates an 8-bit counter and register. The 'N' suffix denotes the PDIP package variant. Other variants include SOIC packages like ADW or ADWR. The family is designed for general-purpose digital logic applications requiring reliable counting and data storage functions.

Counter Dividers Replacement Considerations

SN74HC590ADW

Counter Dividers FAQ

How are the counter and register clocks connected?

Separate clocks are provided for the binary counter (CCLK) and the storage register (RCLK). Both are positive-edge triggered. If connected together, the register state remains one count behind the counter.

What is the function of the RCO pin?

The Ripple-Carry Output (RCO) indicates when the counter reaches its maximum value (all Qs high). It can be connected to the CCKEN input of a subsequent stage to cascade counters easily.