X9C104PIZ

Overview

The X9C104PIZ is a digitally controlled potentiometer (XDCP) from the X9C10 series, manufactured by Renesas Electronics. It features a single-channel resistor array with a nominal resistance of 100 kOhms and a linear taper. The device includes 100 tap points for precise wiper positioning, managed via a 3-wire serial interface using CS, U/D, and INC inputs. It operates on a single 5V supply (4.5V to 5.5V range) with a typical current consumption of 750 µA. The component utilizes non-volatile memory to retain the wiper position after power loss. It is housed in an 8-pin PDIP package and supports an industrial temperature range from -40°C to +85°C.

Feature Summary

• Non-volatile memory retains wiper position upon power-up
• 100-tap resolution with 100 kOhm linear resistance
• 3-wire serial control interface (CS, U/D, INC)
• Industrial temperature range (-40°C to +85°C)

Applications

• Signal processing parameter adjustment
• Hardware gain control circuits
• Voltage reference trimming

Procurement Notes

Verify RoHS compliance status as datasheets indicate varying certification levels across revisions. Confirm package authenticity, as the PIZ suffix denotes a lead-free PDIP-8 package. Check for obsolescence notices, as Intersil/Renesas may have discontinued specific variants within the X9C10 family. Ensure voltage ratings match system requirements, as the absolute maximum supply is 5.5V.

Selection Notes

Select this part when a non-volatile digital potentiometer with 100k Ohm resistance is required. The PDIP-8 package is suitable for through-hole prototyping or high-reliability PCB mounting. Compare against X9C104SZT1 for surface-mount alternatives. Verify that the 3-wire interface compatibility exists with the host microcontroller. Consider the ±20% tolerance and 300 ppm/°C temperature coefficient for precision applications.

Part Context

The X9C104PIZ belongs to the X9C10 series of Digitally Controlled Potentiometers originally developed by Intersil and later acquired by Renesas Electronics. This series integrates a resistor array, wiper switches, and EEPROM into a single CMOS chip. The 'PIZ' suffix specifically identifies the 8-pin Plastic Dual In-Line Package with lead-free termination, distinguishing it from SOIC or other package variants like the X9C104SZ.

Replacement Considerations

Direct replacement options include the X9C104SZT1 (SOIC package). Cross-brand equivalents such as the DS1804Z-100+ from Analog Devices offer similar functionality but require verification of pinout and interface timing compatibility.