Renesas X9313WSZ-3T1

Overview

X9313WSZ-3T1 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 10 kΩ end-to-end resistance. It operates from 3V to 5.5V, supports terminal voltages from –VCC to +VCC, and delivers ±4.4 mA wiper current for analog signal conditioning in embedded control loops.

For engineers reviewing the X9313WSZ-3T1 datasheet, X9313WSZ-3T1 pinout, X9313WSZ-3T1 application, or X9313WSZ-3T1 equivalent, this device serves as a drop-in solid-state replacement for mechanical potentiometers in precision voltage divider, gain-setting, and offset adjustment circuits requiring power-up recall and long-term setting retention.

Technical Context

The X9313WSZ-3T1 implements a 31-element resistor array with make-before-break electronic wiper switching, enabling glitch-free tap transitions. Its 5-bit up/down counter drives a decoder that selects one of 32 wiper positions, with wiper resistance typically 40 Ω at VCC = 5 V.

Nonvolatile memory stores the last wiper position on CS↑ while INC = HIGH, ensuring automatic recall at power-up. The device enters standby mode (≤500 µA) when deselected, and supports absolute linearity error ≤±1 MI and ratiometric temperature coefficient ≤±20 ppm/°C.

Key Specifications

Pinout & Package

Package: 8-lead SOIC (Pb-free, RoHS compliant), M8.15 outline, 3.9 mm × 4.9 mm body, 1.27 mm lead pitch.

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 X9313WSZ-3T1 uniquely combines 3-wire simplicity, guaranteed power-up recall, and bipolar terminal voltage capability-making it optimal for standalone analog trimming where minimal MCU overhead and deterministic startup are critical.

Availability

X9313WSZ-3T1 is available at Aetrix Electronics and suitable for audio signal conditioning, sensor offset calibration, programmable power supply feedback, and industrial control loop trimming requiring stable component supply and long-term parameter retention.

Supply support for X9313WSZ-3T1 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 company, now part of Renesas Electronics, delivering high-reliability solutions for industrial, infrastructure, and consumer markets.

The X9313 family was designed specifically for solid-state replacement of mechanical potentiometers in analog front-ends, offering nonvolatile setting retention, low-power operation, and robust ESD tolerance for embedded system calibration.

FAQ

What is the operating temperature range for the X9313WSZ-3T1?

The X9313WSZ-3T1 is rated for the commercial temperature range of 0°C to +70°C. This specification is confirmed in the Ordering Information table on page 2 of the FN8177 datasheet, where "X9313WSZ" is explicitly listed with "0 to +70°C" under Temperature Range. It uses the same SOIC package (M8.15) and electrical characteristics as other X9313-3 variants within this grade.

Does the X9313WSZ-3T1 require an external clock or data line for communication?

No, the X9313WSZ-3T1 uses a 3-wire asynchronous interface with only CS, U/D, and INC pins-no clock or bidirectional data line is needed. The INC input is negative-edge-triggered, and wiper movement direction is determined solely by the logic level on U/D while CS is asserted low, as defined in Table 2 (Mode Selection) on page 4 of the datasheet.

How is nonvolatile storage triggered on the X9313WSZ-3T1?

Nonvolatile storage of the current wiper position is triggered by a rising edge on the CS pin while the INC input is held HIGH, as specified in the "Chip Select (CS)" section on page 3 and Table 2 on page 4 of the FN8177 datasheet. After the store operation completes (~10 ms), the device enters low-power standby mode until next selected.

Can the X9313WSZ-3T1 be used with bipolar analog signals?

Yes, the X9313WSZ-3T1 supports terminal voltages from –VCC to +VCC on RH/VH and RL/VL pins, enabling direct use with bipolar signals such as ±5 V audio or sensor outputs. This capability is explicitly stated in the "Features" section (page 1) and "Potentiometer Characteristics" table (page 5) of the datasheet, with absolute maximum ratings confirming ±6 V tolerance on VH/VL/VW.

What is the wiper resistance specification for the X9313WSZ-3T1?

The wiper resistance (RW) for the X9313WSZ-3T1 is specified as 40 Ω typical and 100 Ω maximum at VCC = 5 V, as listed in the "Potentiometer Characteristics" table on page 5 of the FN8177 datasheet. This value directly impacts insertion loss and frequency response when used in high-impedance feedback or signal paths.