Renesas X9C503PIZ

Overview

X9C503PIZ from Renesas Electronics is a digitally controlled potentiometer (XDCP™) with 50 kΩ end-to-end resistance, 100 wiper tap points, and nonvolatile memory for power-up recall. It operates from a single 5 V supply, supports ±5 V terminal voltages, and functions as either a three-terminal potentiometer or two-terminal variable resistor in analog signal conditioning and parameter trimming circuits.

For engineers reviewing the X9C503PIZ datasheet, X9C503PIZ pinout, X9C503PIZ application, or X9C503PIZ equivalent, this page delivers verified specifications, validated pin functions, confirmed industrial-temperature operation (–40°C to +85°C), package mapping to 8-lead PDIP, and two rigorously cross-referenced alternative parts for design flexibility.

Technical Context

The X9C503PIZ implements a 99-element resistor array with make-before-break wiper switching, controlled via a three-wire serial interface (CS, U/D, INC). Its 7-bit up/down counter drives a decoder selecting one of 100 wiper positions, with nonvolatile storage triggered by CS↑ while INC = HIGH.

Internal charge pump enables ±5 V analog voltage handling across VH/RH and VL/RL terminals despite a single 5 V VCC supply. Wiper resistance is typ. 40 Ω, and absolute linearity is ±1 MI (±1% of RTOTAL), with ratiometric temperature coefficient of ±20 ppm/°C.

Key Specifications

Pinout & Package

Package: 8-lead PDIP (Plastic Dual-In-Line Package), RoHS-compliant, MDP0031 outline, through-hole mountable. Pin 1 index marked with notch or dot.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD5204BRUZ10 and MCP41010-I/P, the X9C503PIZ uniquely delivers single-supply ±5 V analog operation, guaranteed power-up recall, and industrial temperature qualification-making it optimal for field-deployed equipment requiring hands-off calibration integrity.

Availability

X9C503PIZ is available at Aetrix Electronics and suitable for industrial sensor calibration, programmable power supply trimming, and audio signal conditioning requiring stable component supply and long-term parametric consistency.

Supply support for X9C503PIZ 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 connectivity solutions for industrial, automotive, and infrastructure markets.

The X9C503PIZ belongs to Renesas' XDCP™ family of digitally controlled potentiometers, designed specifically for replacing mechanical trimmers in analog circuits where reliability, repeatability, and nonvolatile setting retention are critical.

FAQ

What is the maximum voltage that can be applied across VH/RH and VL/RL terminals of the X9C503PIZ?

The X9C503PIZ allows a maximum differential voltage of 10 V between VH/RH and VL/RL terminals, as specified in the Absolute Maximum Ratings table. This limit applies under all conditions, including transient events. Exceeding 10 V risks permanent damage to the internal resistor array or wiper switches. The device's internal charge pump enables this rating while operating from a single 5 V supply.

Does the X9C503PIZ require an external clock or data line for its three-wire interface?

No, the X9C503PIZ does not require an external clock or bidirectional data line. Its three-wire interface uses only CS (chip select), U/D (direction), and INC (increment) signals-each driven by simple GPIO pins. Timing is edge-triggered: INC toggles wiper position on negative edges, and CS rising edge stores the current position when INC is HIGH. No clock synchronization or data framing is needed.

Can the X9C503PIZ be used in a bipolar signal path with –5 V to +5 V swing?

Yes, the X9C503PIZ supports bipolar analog operation: VH/RH and VL/RL terminals accept voltages from –5 V to +5 V relative to VSS, enabling direct use in AC-coupled or dual-supply circuits. However, VSS must remain the system ground reference, and VCC must be +5 V. The internal charge pump generates necessary bias internally-no external negative supply is required.

How many times can the wiper position be stored to nonvolatile memory in the X9C503PIZ?

The X9C503PIZ guarantees 100,000 data changes per bit in its nonvolatile memory, as stated in the Endurance specification. Each store operation (CS↑ with INC = HIGH) writes the current 7-bit wiper count to EEPROM. This endurance rating ensures reliable recalibration over the full product lifecycle-even in field-service scenarios requiring frequent retrimming.

Is the X9C503PIZ pin-compatible with other members of the X9Cxxx family such as X9C103PIZ?

Yes, the X9C503PIZ shares identical pinout, package (8-lead PDIP), and interface timing with X9C102PIZ, X9C103PIZ, and X9C104PIZ. Only the end-to-end resistance differs: 1 kΩ, 10 kΩ, 50 kΩ, and 100 kΩ respectively. All share the same control protocol, voltage ratings, temperature range, and nonvolatile behavior-enabling drop-in substitution when resistance value matches the circuit's design requirements.