CAT5409YI10

Digital Potentiometers Overview

The CAT5409YI10 is a quad digital potentiometer integrated with control logic and non-volatile memory, manufactured by onsemi. It features four linear taper digital pots, each with 64 resistor taps and an end-to-end resistance of 10 kΩ. The device utilizes an I2C serial interface for communication and includes 16 bytes of NVRAM to store up to four wiper settings per potentiometer. Operating within a voltage range of 2.5 V to 6.0 V, it supports industrial temperatures from -40°C to +85°C. The component is housed in a 24-lead TSSOP package.

Digital Potentiometers Feature Summary

• Four independent linear taper digital potentiometers with 64 taps each
• 10 kΩ end-to-end resistance with ±20% tolerance
• I2C serial interface supporting up to sixteen devices on a single bus
• Non-volatile memory retains four wiper settings per pot, auto-loading DR0 at power-up

Digital Potentiometers Applications

• Circuit level adjustments requiring digital control
• System level calibration and configuration
• Variable resistor applications using RH and RL terminals

Digital Potentiometers Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation, as product lines may undergo discontinuation or revision changes. Confirm package availability and lead times through authorized distributors, noting that this specific part number may be subject to obsolescence notices.

Digital Potentiometers Selection Notes

Select the CAT5409YI10 when a quad-channel digital potentiometer with I2C control is required. Ensure the 10 kΩ resistance value matches the circuit design. Verify that the system can accommodate the 24-lead TSSOP footprint and that the I2C address pins (A0-A3) can be configured to avoid bus conflicts with other devices.

Digital Potentiometers Part Context

This component belongs to the CAT5409 family of quad digital potentiometers. Variants exist with different resistance values (2.5 kΩ, 50 kΩ, 100 kΩ) and packages (SOIC-24). The 'Y' suffix denotes the TSSOP-24 package, while 'I' indicates the industrial temperature range. The '10' specifies the 10 kΩ resistance value.

Digital Potentiometers Replacement Considerations

Direct replacements include other CAT5409 variants with different resistance values or packages, such as CAT5409WI10 (SOIC-24) or CAT5409YI25 (2.5 kΩ). Cross-family replacements require verification of pin compatibility and interface protocols.