X9C102PIZ

Overview

The X9C102PIZ is a non-volatile digital potentiometer from the X9C10 series by Renesas Electronics. It features a single channel with a resistance value of 1 kΩ and 100 tap positions. The device utilizes a linear taper and operates on a single 5V supply voltage. It employs a serial 3-wire interface for control, consisting of Up/Down (U/D), Increment (INC), and Chip Select (CS) signals. The component is housed in an 8-pin PDIP package and includes non-volatile memory to retain the wiper position upon power loss.

Feature Summary

• Non-volatile EEPROM storage retains wiper settings without power
• 1 kΩ resistance with 100 linear tap positions
• Serial 3-wire interface (U/D, INC, CS)
• Single 5V power supply operation

Applications

• Volume control in audio equipment
• Gain adjustment in signal conditioning circuits
• Voltage reference trimming
• LED brightness control

Procurement Notes

Verify the manufacturer part number X9C102PIZ against official Renesas documentation to confirm the PDIP-8 package and 1kΩ specification. Ensure compatibility with the required 5V operating voltage and serial interface timing. Check for RoHS compliance status as indicated in current datasheets.

Selection Notes

Select this component when a non-volatile, low-cost digital potentiometer is required for applications needing precise resistance adjustment via a simple serial interface. The 1kΩ value suits moderate impedance circuits, while the 100-tap resolution provides adequate granularity for many analog control tasks. Verify that the 5V logic levels match the system design.

Part Context

The X9C102PIZ belongs to the X9C10 family of non-volatile digital potentiometers. This series integrates EEPROM technology to maintain the last set wiper position after power cycles. The 'P' suffix denotes the PDIP package, distinguishing it from surface-mount variants like the SOIC version.

Replacement Considerations

Compatible substitutes include other X9C102 variants such as X9C102SZ or X9C102SIZ, provided the package type difference (PDIP vs. SOIC) is accommodated by the PCB layout. Cross-referencing pinouts and electrical specifications is essential before substitution.