Renesas X9313WPZ-3

Overview

X9313WPZ-3 from Intersil is a digitally controlled potentiometer (XDCP™) with 32 linear tap positions, 3-wire serial interface (CS/U/D/INC), nonvolatile wiper position storage, and ±V_CC terminal voltage capability. It functions as a solid-state replacement for mechanical potentiometers in precision analog trimming circuits, offering 10 kΩ end-to-end resistance, 3 V to 5.5 V supply operation, and industrial temperature range (–40°C to +85°C).

For engineers reviewing the X9313WPZ-3 datasheet, X9313WPZ-3 pinout, X9313WPZ-3 application, or X9313WPZ-3 equivalent, key selection considerations include its PDIP-8 package, 10 kΩ RTOTAL, nonvolatile recall on power-up, make-before-break wiper switching, and compatibility with 3 V/5 V logic-level control signals.

Technical Context

The X9313WPZ-3 implements a 31-element resistor array with electronically switched wiper access at 32 discrete taps. Wiper position is controlled by a 5-bit up/down counter decoded to activate one of 32 transfer gates, enabling precise digital adjustment of resistance ratio or voltage division.

Its nonvolatile memory stores the last wiper setting using EEPROM technology, supporting 100,000 write cycles and 100-year data retention. The device enters low-power standby (≤500 µA) when CS is high, and supports store-on-CS-high-with-INC-high mode for deterministic nonvolatile updates.

Key Specifications

Pinout & Package

Package: 8-pin Plastic Dual-In-Line Package (PDIP), RoHS-compliant, through-hole mountable (MDP0031 outline). Compatible with wave soldering only; not rated for reflow.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD5243BRMZ10 and MCP41010-I/P, the X9313WPZ-3 offers native nonvolatile storage in a simple 3-wire interface, making it optimal for single-pot, low-pin-count, self-contained analog trimming where power-loss resilience is mandatory.

Availability

X9313WPZ-3 is available at Aetrix Electronics and suitable for audio signal conditioning, precision voltage reference trimming, comparator hysteresis configuration, and op-amp offset nulling requiring stable component supply and long-term calibration integrity.

Supply support for X9313WPZ-3 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

Intersil Corporation is a precision analog and power management semiconductor provider, now part of Renesas Electronics, with deep expertise in high-reliability industrial and infrastructure solutions.

The X9313 family was designed specifically for replacing mechanical potentiometers in analog signal-path trimming applications where digital control, nonvolatile setting retention, and robustness against vibration/movement are essential.

FAQ

What is the maximum allowable voltage difference between RH and RL terminals for X9313WPZ-3?

The X9313WPZ-3 supports a maximum differential voltage of 10 V between RH and RL terminals, as specified for the X9313W series in the Absolute Maximum Ratings table. This allows safe operation with ±5 V rails or unipolar 0–10 V signals without external protection circuitry. Exceeding this limit risks permanent damage to the internal resistor array.

Does X9313WPZ-3 require an external clock or microcontroller to retain wiper position after power-down?

No. The X9313WPZ-3 contains on-chip nonvolatile EEPROM that automatically stores the current wiper position upon a valid store command (CS rising edge with INC = HIGH). Upon power-up, the device recalls this value and sets the wiper accordingly - no external controller or clock is needed for persistence.

Can X9313WPZ-3 be used in a two-terminal variable resistor configuration?

Yes. The X9313WPZ-3 can operate as a two-terminal variable resistor by connecting either RH/VH or RL/VL to RW/VW and using the remaining fixed terminal plus wiper. This configuration is explicitly supported in the datasheet and maintains the same 10 kΩ RTOTAL tolerance and temperature coefficient as the three-terminal mode.

What is the wiper resistance specification for X9313WPZ-3 and how does it affect circuit accuracy?

The X9313WPZ-3 has a typical wiper resistance of 40 Ω at VCC = 5 V (max 100 Ω). In voltage divider applications, this adds series resistance to the wiper output, causing small gain errors - especially noticeable at low RTOTAL values or high source impedances. For 10 kΩ units, error remains below 0.5% at mid-scale, well within most trimming tolerances.

Is X9313WPZ-3 compatible with 3.3 V microcontrollers driving the CS, U/D, and INC inputs?

Yes. The X9313WPZ-3 accepts logic-level inputs compliant with VIL ≤ 0.8 V and VIH ≥ 2 V over its full VCC range (3–5.5 V). A 3.3 V MCU meets these thresholds directly, enabling reliable control without level shifters. Input leakage is ±10 µA, ensuring minimal loading on GPIO pins.