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Home > Products > Integrated Circuits (ICs) > Data Acquisition > Digital Potentiometers

Renesas X9313UM-3T1

Name: X9313UM-3T1
Brand: Renesas
SKU: X9313UM-3T1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: X9313UM-3T1

Manufacturer:: Renesas

Category:: Digital Potentiometers

Package:: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)

Datasheet:: X9313UM-3T1.pdf

Description:: IC DGTL POT 50KOHM 32TAP 8MSOP

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Product details

Overview

X9313UM-3T1 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 tolerance, and 50 kΩ end-to-end resistance - used for precision analog trimming in programmable power supplies and sensor calibration circuits.

For engineers reviewing the X9313UM-3T1 datasheet, X9313UM-3T1 pinout, X9313UM-3T1 application, or X9313UM-3T1 equivalent, key selection criteria include its 3V–5.5V supply range, industrial temperature rating (−40°C to +85°C), MSOP-8 package, 100,000-cycle endurance, and guaranteed wiper recall on power-up without external memory.

Technical Context

The X9313UM-3T1 integrates a 31-element resistor ladder, 5-bit up/down counter, make-before-break wiper switching network, and EEPROM-based nonvolatile memory. Wiper position is updated on negative-edge transitions of INC while CS is low, with direction controlled by U/D logic level.

It operates as either a three-terminal potentiometer or two-terminal variable resistor. Terminal voltages support rail-to-rail operation (−V_CC to +V_CC), and wiper resistance is specified at 40 Ω (typ.) under 5 V supply - enabling direct connection to op-amp inputs or ADC reference paths without buffering.

Key Specifications

Parameter	Value and Actual Design Meaning
End-to-end resistance (R_TOTAL)	50 kΩ ±20% - defines full-scale analog adjustment range and sets minimum load impedance for stable divider operation.
Supply voltage range	3 V to 5.5 V - supports dual-rail systems and battery-backed designs without level-shifting circuitry.
Wiper tap count	32 positions (0–31) - provides 3.125% resolution per step, sufficient for 10-bit-equivalent analog control.
Nonvolatile storage endurance	100,000 data changes per bit - ensures reliable lifetime in field-adjustable calibration applications.
Temperature range	−40°C to +85°C - qualified for industrial-grade embedded systems including motor drives and instrumentation.
Wiper resistance	40 Ω (typ.) at V_CC = 5 V - low enough to avoid gain error in high-impedance feedback networks.
Standby current	500 µA max - enables low-power sleep modes in portable or energy-harvesting systems.

Pinout & Package

Package: 8-lead MSOP (M8.118), RoHS-compliant, Pb-free matte tin termination, body dimensions 3.0 mm × 3.0 mm × 0.85 mm.

Pin/Terminal	Circuit Role	Design Meaning
V_CC	Positive supply input	Accepts 3–5.5 V; powers internal logic, memory, and resistor array - must be stabilized before CS activation.
V_SS	Ground reference	Return path for all internal currents; requires low-impedance connection to minimize noise coupling into wiper output.
RH/VH	High terminal	Fixed end of resistor array; voltage polarity relative to wiper depends on U/D state - not absolute potential.
RL/VL	Low terminal	Fixed opposite end of array; forms complete resistive path with RH/VH - both tolerate −V_CC to +V_CC.
RW/VW	Wiper output	Analog output node; connects to one of 32 taps; series resistance ≤100 Ω ensures minimal loading in signal-path applications.
CS	Chip select	Active-low enable; stores wiper position when rising edge occurs while INC = HIGH - critical for power-up reproducibility.
U/D	Direction control	Defines increment/decrement behavior on next INC edge; may change dynamically during CS low without glitching wiper.
INC	Increment clock	Negative-edge-triggered; advances wiper one position per valid transition - timing min. high/low periods are 1 µs each.

Key Features

Feature	Design Value
Solid-state construction	Eliminates mechanical wear, contact bounce, and vibration sensitivity - essential for automotive and aerospace recalibration loops.
Nonvolatile wiper recall	Guarantees identical startup resistance value after power cycling - removes need for host MCU initialization routines.
±V_CC terminal voltage range	Supports bipolar signal conditioning (e.g., ±5 V op-amp rails) without external level shifters or clamping diodes.
Make-before-break switching	Prevents open-circuit transients during wiper movement - avoids momentary signal dropout in audio or sensor bias paths.
Temperature-compensated array	±300 ppm/°C end-to-end drift - maintains trim stability across industrial temperature ranges without software compensation.

Applications

Programmable Voltage Reference	Motor Drive Current Sensing
Use Scenario: Setting precise reference voltage for DACs or ADCs in automated test equipment. IC Role / Device Role / Timing Role: Three-terminal potentiometer configured as adjustable voltage divider feeding high-impedance op-amp input. Use Value: 50 kΩ R_TOTAL minimizes current draw while maintaining 32-step resolution - enabling stable 12-bit-equivalent reference tuning without buffer amplification.	Use Scenario: Calibrating shunt resistor gain in closed-loop motor phase current feedback. IC Role / Device Role / Timing Role: Two-terminal variable resistor in op-amp gain-setting network for current-sense amplifier. Use Value: Nonvolatile storage retains factory-trimmed gain value across power cycles - eliminating recalibration during maintenance or firmware updates.
Laser Diode Bias Control	Industrial Sensor Offset Adjustment
Use Scenario: Fine-tuning bias current setpoint for telecom laser diodes requiring sub-mA accuracy. IC Role / Device Role / Timing Role: Two-terminal variable resistor in constant-current source feedback loop. Use Value: 40 Ω typical wiper resistance prevents gain error in high-gain transimpedance stages - ensuring <1% full-scale error over temperature.	Use Scenario: Field-adjustable zero-point correction for RTD or thermocouple signal conditioners. IC Role / Device Role / Timing Role: Three-terminal potentiometer providing offset injection into instrumentation amplifier input stage. Use Value: −40°C to +85°C rating and ±300 ppm/°C tempco ensure calibration remains valid across operating environment - reducing annual recalibration frequency.

Programmable Voltage Reference

Motor Drive Current Sensing

Use Scenario: Setting precise reference voltage for DACs or ADCs in automated test equipment.

IC Role / Device Role / Timing Role: Three-terminal potentiometer configured as adjustable voltage divider feeding high-impedance op-amp input.

Use Value: 50 kΩ R_TOTAL minimizes current draw while maintaining 32-step resolution - enabling stable 12-bit-equivalent reference tuning without buffer amplification.

Use Scenario: Calibrating shunt resistor gain in closed-loop motor phase current feedback.

IC Role / Device Role / Timing Role: Two-terminal variable resistor in op-amp gain-setting network for current-sense amplifier.

Use Value: Nonvolatile storage retains factory-trimmed gain value across power cycles - eliminating recalibration during maintenance or firmware updates.

Laser Diode Bias Control

Industrial Sensor Offset Adjustment

Use Scenario: Fine-tuning bias current setpoint for telecom laser diodes requiring sub-mA accuracy.

IC Role / Device Role / Timing Role: Two-terminal variable resistor in constant-current source feedback loop.

Use Value: 40 Ω typical wiper resistance prevents gain error in high-gain transimpedance stages - ensuring <1% full-scale error over temperature.

Use Scenario: Field-adjustable zero-point correction for RTD or thermocouple signal conditioners.

IC Role / Device Role / Timing Role: Three-terminal potentiometer providing offset injection into instrumentation amplifier input stage.

Use Value: −40°C to +85°C rating and ±300 ppm/°C tempco ensure calibration remains valid across operating environment - reducing annual recalibration frequency.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
AD5175BRMZ-50	I²C interface, 256-tap resolution, 50 kΩ R_TOTAL, 2.7–5.5 V supply, no ±V_CC terminal tolerance	Requires I²C host; higher resolution but lacks rail-to-rail terminal voltage capability	Select when digital bus compatibility and finer granularity outweigh bipolar signal handling needs.
MCP41HV51-503	10-bit SPI interface, 50 kΩ R_TOTAL, 4.5–18 V supply, ±15 V terminal tolerance, no nonvolatile recall on power-up	Supports higher voltage rails but requires external EEPROM or MCU-initiated restore sequence	Select for high-voltage industrial controls where ±15 V operation is mandatory and host MCU handles initialization.

Compared with AD5175BRMZ-50 and MCP41HV51-503, the X9313UM-3T1 uniquely combines 3-wire simplicity, guaranteed power-up wiper recall, and ±V_CC terminal tolerance - making it optimal for cost-sensitive, self-contained analog trimming where reliability and ease of integration are prioritized over resolution or bus flexibility.

Availability

X9313UM-3T1 is available at Aetrix Electronics and suitable for programmable power supplies, motor drive current sensing, laser diode bias control, and industrial sensor offset adjustment requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for X9313UM-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 provider, now part of Renesas Electronics, with deep expertise in high-reliability industrial and infrastructure solutions.

The X9313 family was designed specifically for solid-state replacement of mechanical potentiometers in calibration-critical analog signal paths - emphasizing nonvolatile retention, temperature stability, and robust interface simplicity.

FAQ

What is the maximum allowable voltage across RH/VH and RL/VL terminals for X9313UM-3T1?

The X9313UM-3T1 supports terminal voltages from −V_CC to +V_CC, and the absolute maximum voltage difference |V_H − V_L| is 10 V for the X9313U variant. Since X9313UM-3T1 is an X9313U-series device with 50 kΩ R_TOTAL, its ΔV rating is 10 V - exceeding typical 5 V rail-to-rail requirements and enabling use in ±5 V systems without external protection.

Does X9313UM-3T1 retain its wiper position after power loss?

Yes, X9313UM-3T1 stores the wiper position in nonvolatile EEPROM memory. Upon power restoration, the device automatically recalls the last stored value and configures the wiper accordingly - no host MCU intervention or external memory is required. This behavior is guaranteed across 100-year data retention and 100,000 store cycles.

Can X9313UM-3T1 operate with a 3.3 V supply?

Yes, X9313UM-3T1 is explicitly rated for 3 V to 5.5 V operation (per "X9313-3" designation in datasheet). At 3.3 V, all specifications including active current (≤3 mA), standby current (≤500 µA), and wiper resistance (≤100 Ω) remain valid - making it compatible with modern low-voltage microcontroller systems.

What is the function of the U/D pin during wiper adjustment in X9313UM-3T1?

The U/D pin determines wiper movement direction on each INC edge: logic HIGH increments the wiper position (toward RH/VH), logic LOW decrements it (toward RL/VL). Its state can be changed dynamically while CS is low, allowing bidirectional fine-tuning without deselecting the device - simplifying host firmware implementation.

Is X9313UM-3T1 RoHS-compliant and lead-free?

Yes, X9313UM-3T1 uses Intersil's Pb-free material set with 100% matte tin (e3) termination, fully compliant with RoHS Directive 2011/65/EU. The MSOP-8 package (M8.118) is qualified for wave soldering and meets IPC/JEDEC J-STD-020 reflow profiles for lead-free assembly.

X9313UM-3T1 Specifications

Product attributes: Attribute value

Manufacturer:: Renesas

Series:: XDCP™

Package/Case:: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Programmable:: Not Verified

Taper:: Linear

Configuration:: Potentiometer

Number of Circuits:: 1

Number of Taps:: 32

Resistance (Ohms):: 50k

Interface:: Up/Down (U/D, INC, CS)

Memory Type:: Non-Volatile

Voltage - Supply:: 3V ~ 5.5V

Features:: -

Tolerance:: ±20%

Temperature Coefficient (Typ):: ±300ppm/°C

Mounting Type:: Surface Mount

Grade:: -

Qualification:: -

Supplier Device Package:: 8-MSOP

Operating Temperature:: 0°C ~ 70°C

Resistance - Wiper (Ohms) (Typ):: 40

X9313UM-3T1 FAQ

1.How can I place an order for X9313UM-3T1 through Aetrix?

Please submit a Request for Quotation (RFQ) for X9313UM-3T1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for X9313UM-3T1 reliable?

The price and inventory of X9313UM-3T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9313UM-3T1 is usually 5 days.

3.What payment methods are accepted for X9313UM-3T1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9313UM-3T1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for X9313UM-3T1?

X9313UM-3T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your X9313UM-3T1 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for X9313UM-3T1?

For technical support, including X9313UM-3T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9313UM-3T1 requirements.

6.How does Aetrix verify that X9313UM-3T1 is sourced from the original manufacturer or authorized distributors?

All X9313UM-3T1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that X9313UM-3T1 meets industry standards.

7.What is the process for return or replacement of X9313UM-3T1?

All X9313UM-3T1 units undergo pre-shipment inspection (PSI). If there is an issue with X9313UM-3T1, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The X9313UM-3T1 part is unused and in its original packaging.

Return procedure for X9313UM-3T1:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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