CAT5419YI-00-T2

Digital Potentiometers Overview

The CAT5419YI-00-T2 is a dual-channel digital potentiometer IC from onsemi, featuring non-volatile memory to retain wiper settings upon power loss. It offers two independent potentiometers with 64 taps each and a nominal resistance of 100 kOhms with a 20% tolerance. The device operates on a 2-wire serial interface (I2C compatible) and supports a supply voltage range of 2.5 V to 6 V. Packaged in a 24-pin TSSOP, it functions within an industrial temperature range of -40°C to +85°C.

Digital Potentiometers Feature Summary

• Dual channel configuration with 64 positions per potentiometer
• Non-volatile memory retains wiper position after power cycle
• 100 kOhm nominal resistance with linear taper
• 2-Wire serial control interface for simplified connectivity

Digital Potentiometers Applications

• Audio volume and tone control circuits
• Programmable gain amplifier biasing
• Voltage reference adjustment
• System calibration and trimming

Digital Potentiometers Procurement Notes

This component is listed as obsolete or end-of-life by the manufacturer. Availability is limited to existing stock or third-party distributors. Verify the specific lot date code and authenticity when sourcing from secondary markets, as new production is no longer guaranteed.

Digital Potentiometers Selection Notes

Select this part for applications requiring dual independent variable resistors with persistent settings. Ensure the system voltage falls between 2.5 V and 6 V. For higher resolution requirements, consider models with more than 64 taps. Verify that the I2C address configuration meets the bus addressing constraints of the host microcontroller.

Digital Potentiometers Part Context

Part of the CAT5419 series, which includes variants with different resistance values and interfaces. The 'YI' suffix typically denotes the package type and temperature grade, while '00' indicates the 100 kOhm resistance value. The '-T2' suffix specifies the tape and reel packaging format.

Digital Potentiometers Replacement Considerations

Direct pin-to-pin replacements may include other CAT5419 variants with different resistance values (e.g., CAT5419WI-50 for 50 kOhm). Check datasheets for compatibility regarding I2C command sets and operating voltage ranges before substitution.