Renesas X9C104PIZ

Overview

X9C104PIZ from Renesas Electronics is a digitally controlled potentiometer (XDCP™) with 100-kΩ end-to-end resistance, 100 wiper tap points, nonvolatile memory for power-up recall, ±5 V terminal voltage rating, and 8-lead PDIP package. It functions as a solid-state three-terminal potentiometer or two-terminal variable resistor in analog signal conditioning, bias trimming, and programmable gain control circuits.

For engineers reviewing the X9C104PIZ datasheet, X9C104PIZ pinout, X9C104PIZ application, or X9C104PIZ equivalent, this page delivers verified specifications, validated pin functions, confirmed industrial temperature range (–40°C to +85°C), exact package mapping (8 Ld PDIP, MDP0031), and two real-world alternative parts with documented technical differences.

Technical Context

The X9C104PIZ implements a 99-element resistor array with make-before-break wiper switching, controlled via a three-wire serial interface (CS, U/D, INC) using negative-edge-triggered increment logic. Its 7-bit up/down counter drives a decoder selecting one of 100 wiper positions, with storage into nonvolatile memory triggered by CS↑ while INC = HIGH.

Internal charge pump enables ±5 V operation on VH/RH and VL/RL terminals despite single 5 V supply, introducing 20 mV_RMS noise at 850 kHz. Wiper resistance is 40 Ω typical, and absolute linearity is ±1 MI (±1% of RTOTAL), with ratiometric temperature coefficient of ±20 ppm/°C.

Key Specifications

Pinout & Package

Package: 8-lead plastic dual-in-line package (PDIP), RoHS-compliant, MDP0031 outline, through-hole mountable. Not suitable for reflow soldering per manufacturer specification.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar digitally controlled potentiometer applications.

Compared with AD5204BRZ100 and MCP41010-I/P, the X9C104PIZ offers deterministic single-channel 100-tap control with guaranteed power-up recall-ideal for standalone trim applications where simplicity, reliability, and zero-host-dependency are prioritized over multi-channel density or ultra-fine resolution.

Availability

X9C104PIZ is available at Aetrix Electronics and suitable for industrial instrumentation, analog signal conditioning, and programmable power supply calibration requiring stable component supply and long-term parametric consistency.

Supply support for X9C104PIZ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Renesas Electronics is a global semiconductor leader delivering microcontrollers, analog, power, and mixed-signal solutions for industrial, automotive, and infrastructure markets.

The X9C104PIZ belongs to Renesas' XDCP™ family of digitally controlled potentiometers, designed specifically for replacing mechanical trimmers in high-reliability analog circuits where repeatable, nonvolatile, and temperature-stable resistance adjustment is required.

FAQ

What is the maximum voltage rating for the VH/RH and VL/RL terminals of the X9C104PIZ?

The X9C104PIZ supports –5 V to +5 V on both VH/RH and VL/RL terminals, as specified in the Absolute Maximum Ratings table. This bipolar voltage capability enables direct use in AC-coupled or dual-supply analog circuits without external level-shifting components. The device's internal charge pump allows this extended range while operating from a single 5 V supply. Exceeding ±5 V may damage the internal resistor array or wiper switches.

Does the X9C104PIZ retain its wiper position after power cycling?

Yes, the X9C104PIZ stores the wiper position in nonvolatile memory and automatically recalls it upon power-up once VCC reaches its final value. This behavior is guaranteed per the datasheet's Power-up and Down Requirements section. The stored value persists for up to 100 years under normal conditions. To update the stored value, the host must assert CS HIGH while INC is HIGH - a dedicated store command distinct from simple wiper movement.

What is the wiper resistance of the X9C104PIZ and how does it affect circuit performance?

The X9C104PIZ has a typical wiper resistance of 40 Ω, with a maximum of 100 Ω per Electrical Specifications. This series resistance introduces insertion error in low-impedance paths - for example, in feedback networks below ~10 kΩ, it may shift gain or offset. Designers should account for it in precision applications. The value remains stable across temperature due to the device's ±20 ppm/°C ratiometric temperature coefficient, minimizing drift-induced errors.

Can the X9C104PIZ be used in a two-terminal variable resistor configuration?

Yes, the X9C104PIZ can be configured as a two-terminal variable resistor by connecting either VH/RH or VL/RL to VW/RW and using the remaining fixed terminal plus wiper as the two endpoints. This mode is explicitly supported in the Applications Information section and used in circuits like adjustable current sources and regulator feedback dividers. The end-to-end resistance remains 100 kΩ ±20%, and wiper linearity specifications apply unchanged.

What package type and lead finish does the X9C104PIZ use, and what assembly processes are supported?

The X9C104PIZ uses an 8-lead plastic dual-in-line package (PDIP) with MDP0031 outline and 100% matte tin (e3) RoHS-compliant termination. Per Notes 2 and 3 in the Ordering Information, it is qualified for through-hole wave soldering only and is not intended for reflow soldering. The Pb-free material set meets IPC/JEDEC J-STD-020 moisture sensitivity level requirements for wave processing, and the lead finish is compatible with both SnPb and Pb-free solder alloys.