Renesas X9313UM-3T2

Overview

X9313UM-3T2 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 implements a 31-element resistor array in an 8-lead MSOP package, operates from 3V to 5.5V, and delivers 50 kΩ end-to-end resistance for precision analog trimming in power supplies and sensor signal conditioning.

For engineers reviewing the X9313UM-3T2 datasheet, X9313UM-3T2 pinout, X9313UM-3T2 application, or X9313UM-3T2 equivalent, key selection criteria include its 3V–5.5V supply range, industrial temperature rating (−40°C to +85°C), 100-year data retention, 100,000-cycle endurance, and compatibility with mechanical potentiometer replacement in closed-loop feedback and calibration circuits.

Technical Context

The X9313UM-3T2 integrates a 5-bit up/down counter, nonvolatile memory, and a resistor array with make-before-break wiper switching. Its control logic responds to negative-edge-triggered INC pulses while U/D sets direction, and CS enables selection and initiates nonvolatile store on rising edge with INC high.

It functions as either a three-terminal potentiometer (RH/VH–RW/VW–RL/VL) or two-terminal variable resistor, with wiper resistance of 40 Ω (typ.) at V_CC = 5V and absolute linearity error ≤ ±1 MI (minimum increment = R_TOTAL/31).

Key Specifications

Pinout & Package

Package: 8-lead MSOP (Mo-187-AA compliant), body size 3.0 mm × 3.0 mm × 1.1 mm, lead pitch 0.65 mm, Pb-free (RoHS-compliant) matte tin finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD5243BRMZ50 and MCP4018T-E/OT, the X9313UM-3T2 offers deterministic 3-wire control with guaranteed power-up recall-critical for unattended calibration systems-while maintaining tighter resistance tolerance than AD5243 and nonvolatile persistence absent in MCP4018.

Availability

X9313UM-3T2 is available at Aetrix Electronics and suitable for power supply trimming, op-amp gain control, sensor offset calibration, and audio level adjustment requiring stable component supply across industrial temperature ranges and long product lifecycles.

Supply support for X9313UM-3T2 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 X9313UM-3T2 belongs to Intersil's XDCP™ family of digitally controlled potentiometers, designed specifically for replacing mechanical trimmers in calibration-critical analog signal paths where long-term stability and nonvolatile recall are mandatory.

FAQ

What is the supply voltage range supported by the X9313UM-3T2?

The X9313UM-3T2 operates from 3V to 5.5V, making it compatible with both 3.3V and 5V logic systems. This wide range allows direct integration into mixed-voltage designs without level translation. The device maintains full specification compliance-including wiper resolution, nonvolatile store timing, and terminal voltage limits-across this entire supply range. Its active current remains ≤3 mA and standby current ≤500 µA regardless of V_CC within spec.

Does the X9313UM-3T2 retain its wiper position after power loss?

Yes, the X9313UM-3T2 stores the wiper position in nonvolatile memory and automatically recalls it upon power-up. This recall occurs within 10 µs after V_CC stabilizes, ensuring immediate operational readiness. The memory guarantees 100-year data retention and withstands 100,000 store cycles. Unlike volatile DCPs, the X9313UM-3T2 does not require host MCU intervention to restore settings-critical for fail-safe calibration in medical or industrial systems.

Can the X9313UM-3T2 be used with bipolar analog signals?

Yes, the X9313UM-3T2 supports terminal voltages from −V_CC to +V_CC, enabling direct use with bipolar signals up to ±5.5V when V_CC = 5.5V. This allows implementation in AC-coupled op-amp stages, differential sensor interfaces, and audio signal paths without external clamping diodes or level shifters. The wiper resistance remains ≤100 Ω across the full voltage range, preserving signal integrity in precision applications.

How many wiper positions does the X9313UM-3T2 provide, and what is the step resolution?

The X9313UM-3T2 provides 32 discrete wiper positions across a 31-element resistor array, yielding a nominal step resolution of approximately 3% of R_TOTAL. Absolute linearity error is limited to ±1 MI (minimum increment = R_TOTAL/31), and relative linearity error is ±0.2 MI between adjacent taps. This resolution supports precise gain/offset adjustments in 12-bit-equivalent analog systems without interpolation.

What package type and footprint does the X9313UM-3T2 use?

The X9313UM-3T2 uses an 8-lead MSOP package (JEDEC MO-187-AA compliant), measuring 3.0 mm × 3.0 mm × 1.1 mm with 0.65 mm lead pitch. It features Pb-free matte tin terminations and is RoHS-compliant. The package is optimized for high-density PCB layouts and supports standard reflow soldering profiles. Pinout matches industry-standard 8-pin MSOP logic ICs, simplifying layout reuse across designs.