X90100M8IZ

Overview

The X90100M8IZ is a non-volatile electronically programmable capacitor manufactured by Renesas Electronics Corporation in an 8-lead MSOP package. It provides 32 selectable capacitance values ranging from 7.5pF to 14.5pF with 0.23pF increments in single-ended mode. The device utilizes internal EEPROM storage to retain programmed trim codes without DC power, featuring power-on recall capabilities. Key electrical specifications include a supply voltage range of 2.7V to 5.5V, absolute accuracy of ±15%, and a temperature coefficient of less than 50ppm/°C in differential mode.

Feature Summary

• Non-volatile EEPROM storage retains capacitance settings across power cycles
• 32 programmable steps from 7.5pF to 14.5pF with 0.23pF resolution
• Simple 3-wire digital interface (INC, U/D, CS) for control
• Low standby current of 2µA maximum

Applications

• Post-trim of low-cost regenerative receivers
• Tunable RF stages
• Low-cost, low temperature drift oscillators
• Garage door openers and keyless entry systems
• Industrial wireless control and RFID tags

Procurement Notes

Verify the specific ordering suffix 'IZ' against official manufacturer documentation, as standard listings may reference 'I'. Confirm RoHS compliance status, as some variants are marked non-compliant. Check component availability as this series may be subject to discontinuation notices. Ensure the 8-MSOP package dimensions match the target PCB footprint requirements.

Selection Notes

Select this component for applications requiring precise, non-volatile capacitance trimming without mechanical adjustment. The device supports both single-ended and differential modes; ensure the circuit topology matches the desired capacitance calculation. Verify that the system logic levels are compatible with the Schmitt trigger inputs and that the supply voltage remains within the 2.7V to 5.5V operational range.

Part Context

The X90100 belongs to the Intersil/Renesas family of digitally controlled passive components. It serves as an electronic alternative to mechanical trimmer capacitors, eliminating the need for manual tuning during manufacturing or field service. The device integrates a 5-bit counter and decode logic to select one of 31 parallel capacitor units.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.