CAT5409YI-00

Digital Potentiometers Overview

The CAT5409YI-00 is a quad digital potentiometer IC from onsemi, featuring four independent potentiometers with 64 taps each. It integrates non-volatile memory (NVRAM) to retain wiper settings upon power loss. The device utilizes a two-wire I2C serial interface for control. It operates within a supply voltage range of 2.5 V to 6 V and consumes approximately 1 mA of operating current. The component is available in surface-mount packages such as SOIC-24 and TSSOP-20, designed for PCB mounting in industrial applications.

Digital Potentiometers Feature Summary

• Quad configuration with 64 taps per potentiometer
• Non-volatile memory retains wiper position after power cycle
• I2C serial interface for simplified control
• Operates on 2.5 V to 6 V supply voltage

Digital Potentiometers Applications

• Audio volume control systems
• Programmable gain amplifiers
• Voltage reference adjustment
• Industrial process control instrumentation

Digital Potentiometers Procurement Notes

Verify the specific suffix (e.g., -T2) for packaging requirements such as reel or cut tape quantities. Confirm end-of-life status and discontinuance notifications from onsemi before finalizing design-in decisions. Ensure compatibility with existing I2C bus protocols and voltage levels during integration.

Digital Potentiometers Selection Notes

Select this component when a quad digital potentiometer with non-volatile storage is required. Verify that the 64-tap resolution meets the application's precision needs. Check package availability (SOIC-24 vs. TSSOP-20) against board space constraints. Confirm operating temperature range suitability for the target environment.

Digital Potentiometers Part Context

This part belongs to the CAT5409 family of digital potentiometers. Variants within the series may differ by resistance value, package type, or temperature grade. The 'YI' suffix typically indicates industrial temperature range and specific packaging. Cross-reference datasheets for exact electrical characteristics and pinout configurations.

Digital Potentiometers Replacement Considerations

Check for direct pin-to-pin replacements within the CAT5409 series with different resistance values or packages. Evaluate other quad digital potentiometers with NVRAM and I2C interfaces from onsemi or competitors if this part is discontinued. Ensure functional equivalence in terms of tap count, voltage range, and memory retention.