Renesas X9313UPZ

Overview

X9313UPZ from Intersil is a digitally controlled potentiometer (XDCP™) implementing a 32-tap linear resistor array with nonvolatile wiper position storage, 3-wire serial interface (CS/U/D/INC), ±V_CC terminal voltage range, and 10 kΩ end-to-end resistance - used for precision analog trimming in voltage divider and variable resistor configurations.

For engineers reviewing the X9313UPZ datasheet, X9313UPZ pinout, X9313UPZ application, or X9313UPZ equivalent, key selection criteria include wiper endurance (100,000 cycles), power-up recall behavior, ±4.4 mA max wiper current, and compatibility with 3 V to 5.5 V supply operation in industrial temperature range (–40°C to +85°C).

Technical Context

The X9313UPZ integrates a 31-element resistor ladder, 5-bit up/down counter, make-before-break wiper switching network, and EEPROM-based nonvolatile memory for wiper position retention. Its control logic responds to edge-triggered INC input synchronized with U/D direction and CS enable.

Operation requires CS low to activate; wiper movement occurs on negative-edge transitions of INC while CS is asserted, and position is stored to memory only when CS rises high with INC held high - enabling deterministic initialization and runtime adjustment without unintended writes.

Key Specifications

Pinout & Package

Package: 8-lead SOIC (Pb-free, RoHS compliant, M8.15 outline), body width 3.80 mm, lead pitch 1.27 mm, operating temperature range –40°C to +85°C.

Key Features

Applications

Equivalent & Alternatives

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

Compared with X9313UPZ, AD5171BRMZ-10 offers I²C compatibility and finer resolution but lower wiper current capability, while MCP41010-I/P provides SPI interface and higher tap count but lacks built-in nonvolatile storage - making X9313UPZ uniquely suited for self-contained, low-pin-count analog trimming without MCU dependency.

Availability

X9313UPZ is available at Aetrix Electronics and suitable for industrial sensor calibration, programmable power supply trimming, and embedded analog front-end configuration requiring stable component supply and guaranteed long-term availability.

Supply support for X9313UPZ 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 provider of precision analog and power management ICs, acquired by Renesas Electronics in 2017; its products serve industrial, infrastructure, and high-reliability embedded markets.

The X9313UPZ belongs to Intersil's XDCP™ (Digitally Controlled Potentiometer) family, designed specifically for replacing mechanical potentiometers in analog signal conditioning, calibration, and trimming applications where reliability, repeatability, and nonvolatile setting retention are essential.

FAQ

What is the operating temperature range for the X9313UPZ?

The X9313UPZ is rated for industrial temperature operation from –40°C to +85°C. This range is confirmed in the Ordering Information table on page 2 of FN8177 Rev 7.00, where X9313UPZ maps to the "X9313USIZ" variant with "–40 to +85°C" specification and 8 Ld SOIC (Pb-free) package. The device maintains full electrical performance including wiper resistance, linearity, and nonvolatile store functionality across this range.

Does the X9313UPZ retain its wiper position after power removal?

Yes, the X9313UPZ retains its wiper position in nonvolatile memory for up to 100 years and automatically recalls that position on power-up. This behavior is explicitly defined in the datasheet: "The position of the wiper can be stored in nonvolatile memory and then be recalled upon a subsequent power-up operation," and "When power is restored, the contents of the memory are recalled and the wiper is set to the value last stored." No external components or MCU intervention are required for this function in X9313UPZ.

What is the maximum allowable voltage across RH/VH and RL/VL terminals of the X9313UPZ?

The maximum voltage difference |VH – VL| for the X9313UPZ is 10 V, as specified under "Recommended Operating Conditions" on page 5 of FN8177 Rev 7.00 for X9313W/U variants (which include X9313UPZ). This limit applies regardless of supply voltage and ensures safe operation of the internal resistor array and switching elements without degradation or breakdown.

Can the X9313UPZ be used with a 3.3 V supply?

Yes, the X9313UPZ supports 3 V to 5.5 V supply operation, explicitly stated in the "Supply Voltage (VCC)" section on page 5 of FN8177 Rev 7.00 under "X9313-3" designation. The X9313UPZ part marking corresponds to the "X9313USIZ" ordering option, which falls under the X9313-3 family and is fully characterized for 3 V operation - including active current (≤3 mA), standby current (≤500 µA), and wiper functionality.

How many wiper tap positions does the X9313UPZ provide?

The X9313UPZ provides 32 discrete wiper tap positions, corresponding to 31 resistive elements in its linear array. This is confirmed on page 1 ("32 wiper tap points"), page 2 ("31 resistive elements"), and page 3 ("output of this counter is decoded to select one of thirty-two wiper positions"). Each tap represents one step of the 5-bit counter, yielding 3.125% resolution per step relative to full-scale resistance.