CAT5251YI-50-T2

Digital Potentiometers Overview

The CAT5251YI-50-T2 is a quad digital potentiometer IC from onsemi, featuring four independent linear-taper potentiometers with 256 taps each. It operates within a supply voltage range of 2.5 V to 6.0 V and supports an industrial temperature range of -40°C to +85°C. The device integrates 16 bytes of non-volatile memory (NVRAM) to store up to four wiper settings per potentiometer, enabling automatic recall at power-up. Communication is managed via a standard SPI serial interface. The unit is housed in a 24-lead TSSOP package.

Digital Potentiometers Feature Summary

• Quad configuration with 256 taps per potentiometer
• SPI serial interface for control and memory access
• Non-volatile memory storing four wiper settings per pot
• Industrial temperature range (-40°C to +85°C)

Digital Potentiometers Applications

• Circuit level adjustments
• System level adjustments

Digital Potentiometers Procurement Notes

Verify the specific ordering suffix 'T2' corresponds to the TSSOP-24 package and tape/reel shipping format as defined in the manufacturer's ordering information table. Confirm that the '-50' resistance value matches the required 50 kOhm specification for the application design.

Digital Potentiometers Selection Notes

Select this component when a quad digital potentiometer with high resolution (256 steps) and persistent state storage is required. Ensure the system utilizes an SPI master compatible with the device's clock frequency limits. Verify that the 50 kOhm end-to-end resistance aligns with the circuit's power rating and current handling requirements.

Digital Potentiometers Part Context

This part belongs to the CAT5251 series of quad digital potentiometers. The 'Y' suffix indicates the TSSOP-24 package variant, while 'I' denotes the industrial temperature grade. The '50' specifies the 50 kOhm resistance value, and 'T2' identifies the reel packaging quantity.

Digital Potentiometers Replacement Considerations

Cross-reference with other CAT5251 variants such as CAT5251WI-50-T1 for SOIC-24 packaging or different resistance values like CAT5251YI-00-T2 for 100 kOhm applications. Ensure pin compatibility and electrical specifications match before substitution.