CAT5259YI-00-T2

Digital Potentiometers Overview

The CAT5259YI-00-T2 is a quad digitally programmable potentiometer (DPP) IC manufactured by onsemi. It integrates four independent linear taper potentiometers, each featuring 256 resistor taps for precise resistance adjustment. The device includes 16 bytes of nonvolatile memory to store wiper settings, ensuring data retention without power. It operates within a supply voltage range of 2.5 V to 6.0 V and communicates via an I²C interface. The component is housed in a 24-lead SOIC package and supports industrial temperature ranges.

Digital Potentiometers Feature Summary

• Four independent digitally programmable potentiometers with 256 taps each
• Nonvolatile memory storage for automatic recall of wiper settings at power-up
• I²C serial interface for control and memory access
• Low wiper resistance typically 100 Ω

Digital Potentiometers Applications

• Programmable gain amplifiers
• Digital volume control circuits
• Calibration systems requiring adjustable reference voltages
• Sensor biasing and offset adjustment

Digital Potentiometers Procurement Notes

Verify the specific suffix 'YI-00-T2' against official datasheets to confirm the resistance value (typically 100 kΩ for this series variant) and package type (SOIC). Confirm RoHS compliance status through manufacturer documentation. Check current lifecycle status as some variants may be discontinued or subject to last-time buys.

Digital Potentiometers Selection Notes

Select this component when multiple independent digital potentiometers are required in a single package. Ensure the system voltage falls between 2.5 V and 6.0 V. Verify that the I²C bus speed and address configuration match the system design. Consider the 100-year data retention and 1 million write cycles if frequent updates are expected.

Digital Potentiometers Part Context

This part belongs to the CAT5259 family of quad DPPs from onsemi (formerly Catalyst Semiconductor). The 'YI' suffix typically denotes the 100 kΩ resistance option in the SOIC-24 package, while 'T2' indicates tape and reel packaging. It serves as a solid-state replacement for mechanical potentiometers in space-constrained designs.

Digital Potentiometers Replacement Considerations

Direct pin-compatible replacements include other CAT5259 variants with different resistance values (e.g., CAT5259JI-00) or the CAT5251 series if SPI interface is acceptable. Verify that substitute parts maintain the same 256-tap resolution and nonvolatile memory characteristics.