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Renesas X9313UM-3
- Part No.:
- X9313UM-3
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
X9313UM-3.pdf
- Description:
- IC DGTL POT 50KOHM 32TAP 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,178
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Product details
Overview
X9313UM-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 50 kΩ end-to-end resistance. It operates from 3V to 5.5V, supports ±VCC terminal voltage range, and functions as a solid-state replacement for mechanical potentiometers in precision analog trimming applications.
For engineers reviewing the X9313UM-3 datasheet, X9313UM-3 pinout, X9313UM-3 application, or X9313UM-3 equivalent, this device delivers deterministic wiper positioning, power-up recall of last stored setting, low standby current (500 µA max), and temperature-compensated resistor array performance across industrial temperature range (0°C to +70°C).
Technical Context
The X9313UM-3 implements a 31-element resistor array with make-before-break wiper switching, enabling glitch-free transitions between 32 discrete tap points. Its 5-bit up/down counter drives a decoder that selects one of 32 wiper terminals, with position stored in nonvolatile memory upon CS↑ while INC = HIGH.
Control logic responds to edge-triggered INC input (negative-edge), direction-selectable via U/D, and enabled by active-low CS. Terminal voltages support full rail-to-rail operation (–VCC to +VCC), and wiper resistance is specified at 40 Ω (typ) at VCC = 5V - critical for minimizing loading error in voltage divider configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-end resistance (RTOTAL) | 50 kΩ ±20% - defines full-scale adjustment range and sets minimum load impedance for stable voltage division. |
| Wiper positions | 32 linear taps - provides 3.125% resolution per step (1/31 increment), enabling fine-grained analog parameter control. |
| Supply voltage range | 3V to 5.5V - supports direct integration into 3.3V and 5V systems without level-shifting circuitry. |
| Terminal voltage range | –VCC to +VCC - allows bidirectional signal handling (e.g., AC-coupled audio, bipolar op-amp feedback networks). |
| Standby current | 500 µA max - enables low-power retention mode during system sleep without losing wiper state. |
| Nonvolatile memory endurance | 100,000 data changes per bit - ensures long-term reliability for field-adjustable calibration routines. |
| Data retention | 100 years - guarantees factory or user-set trim values persist over product lifetime without battery backup. |
Pinout & Package
Package: 8-lead MSOP (M8.118), RoHS-compliant, surface-mount, 3.0 mm × 3.0 mm footprint with 0.65 mm lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Positive supply input | Provides power for internal logic and resistor array; must be stabilized before CS activation to prevent spurious store operations. |
| VSS | Ground reference | Common return path for supply and signal; decoupling capacitor required within 1 cm for noise immunity. |
| CS | Chip select (active-low) | Enables interface logic; rising edge with INC = HIGH triggers nonvolatile store; must be held high during power-up to avoid inadvertent writes. |
| U/D | Up/down direction control | Static logic level determines wiper movement direction on each INC edge; may be changed dynamically during CS = LOW. |
| INC | Increment clock input | Negative-edge triggered; toggling moves wiper one tap; minimum pulse width 1 µs ensures reliable counting. |
| RH/VH | High terminal | Fixed end of resistor array; referenced as "high" relative to wiper motion direction, not voltage polarity. |
| RL/VL | Low terminal | Fixed end of resistor array; complementary to RH/VH; both support ±VCC voltage swing. |
| RW/VW | Wiper output | Movable terminal; series resistance ≤100 Ω ensures minimal insertion loss in gain-setting or offset-adjust circuits. |
Key Features
| Feature | Design Value |
|---|---|
| Nonvolatile wiper position storage | Recalls last stored tap on power-up - eliminates need for host MCU initialization sequence or external EEPROM. |
| 3-wire serial interface | Requires only CS, U/D, and INC signals - reduces GPIO count vs. I²C/SPI alternatives and avoids address conflicts. |
| Temperature-compensated resistor array | ±300 ppm/°C RTOTAL drift - maintains consistent gain/offset trim accuracy across 0°C to +70°C operating range. |
| Make-before-break wiper switching | Prevents open-circuit transients during tap transitions - essential for stable operation in op-amp feedback loops. |
| Rail-to-rail terminal voltage capability | Supports –VCC to +VCC - enables use in dual-supply instrumentation, audio mixing, and bipolar signal conditioning. |
Applications
| Audio Volume Control | DC Offset Adjustment |
|---|---|
|
Use Scenario: Programmable gain control in line-level audio preamplifiers using op-amp feedback networks. IC Role / Device Role / Timing Role: Two-terminal variable resistor configuring closed-loop gain; no timing constraints beyond INC pulse width compliance. Use Value: Eliminates mechanical wear and contact noise; retains user volume setting across power cycles without MCU intervention. |
Use Scenario: Precision nulling of input offset voltage in instrumentation amplifiers or sensor front-ends. IC Role / Device Role / Timing Role: Three-terminal potentiometer in adjustable voltage divider feeding op-amp summing junction; static configuration post-calibration. Use Value: Enables factory-trimmed offset compensation with 100-year data retention, avoiding manual potentiometer rework during production test. |
| Programmable Voltage Reference | LED Brightness Calibration |
|
Use Scenario: Digitally adjustable reference for ADCs or DACs in industrial data acquisition modules. IC Role / Device Role / Timing Role: Three-terminal potentiometer dividing regulated supply to generate stable, software-tunable reference voltage. Use Value: Provides 32-step resolution (≈156 mV/step at 5V) with ±20% RTOTAL tolerance accommodated by system calibration routines. |
Use Scenario: Compensating for LED forward-voltage variation across batches in display backlight drivers. IC Role / Device Role / Timing Role: Two-terminal variable resistor in constant-current source feedback path; adjusted once per unit during final test. Use Value: Stores calibrated current-setting value in nonvolatile memory, ensuring consistent luminance without recalibration after power loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digitally controlled potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5243BRMZ50 | I²C interface, dual-channel, 256-tap resolution, 50 kΩ RTOTAL, 2.7V–5.5V supply | Requires I²C bus resources and address management; higher resolution but no native power-up recall without external controller | Preferred when multi-channel trimming or finer resolution is needed, and I²C infrastructure already exists. |
| MCP41050-I/P | SPITM interface, single-channel, 257-tap resolution, 50 kΩ RTOTAL, 2.7V–5.5V supply, volatile wiper register | No nonvolatile storage - wiper resets to mid-scale on power-up; requires host MCU to reload setting at boot | Selected for cost-sensitive designs where host firmware can manage initialization and no power-loss retention is required. |
Compared with AD5243BRMZ50 and MCP41050-I/P, the X9313UM-3 uniquely combines 3-wire simplicity, guaranteed power-up recall, and rail-to-rail terminal voltage support - making it optimal for standalone analog trimming where MCU interaction is minimized and bipolar signal integrity is essential.
Availability
X9313UM-3 is available at Aetrix Electronics and suitable for industrial sensor calibration, audio equipment manufacturing, and programmable power supply design requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for X9313UM-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 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 trimming applications requiring nonvolatile setting retention, low power, and robust operation across extended temperature ranges.
FAQ
What is the maximum allowable voltage across RH/VH and RL/VL terminals for X9313UM-3?
The X9313UM-3 supports ΔV = |VH − VL| up to 10V, as specified for X9313U-series devices in the Absolute Maximum Ratings table. This allows use in 5V, ±5V, and other dual-supply configurations where the total differential voltage remains within 10V - critical for op-amp gain-setting networks and bipolar signal paths. Exceeding this limit risks permanent damage to the internal resistor array.
Does X9313UM-3 retain its wiper position after power cycling?
Yes, the X9313UM-3 stores the wiper position in nonvolatile memory and automatically recalls it on power-up. This behavior is guaranteed by design: when CS transitions HIGH while INC is HIGH, the current counter value is written to memory and retained for 100 years. No external components or host MCU action is required for restoration - the wiper resumes its last stored tap immediately after VCC stabilizes.
Can X9313UM-3 be used in a two-terminal variable resistor configuration?
Yes, the X9313UM-3 supports both three-terminal potentiometer and two-terminal variable resistor modes. In two-terminal mode, RH/VH and RW/VW (or RL/VL and RW/VW) are used, effectively creating an adjustable resistance between fixed and wiper terminals. This configuration is commonly applied in LED current control, amplifier gain setting, and sensor bias networks - leveraging the device's 50 kΩ RTOTAL and low wiper resistance (≤100 Ω) for minimal insertion loss.
What is the recommended power-up sequence for X9313UM-3 to prevent unintended wiper movement?
To prevent spurious wiper changes or accidental store operations, apply VCC and VSS first, then assert control signals. Specifically, hold CS and INC HIGH before or concurrently with VCC ramp-up. This ensures the device enters standby mode immediately upon power stabilization and avoids interpreting power-supply transients as valid INC edges or store commands - a requirement explicitly stated in the Power-Up and Power-Down Requirements section of the datasheet.
Is X9313UM-3 compatible with 3.3V microcontrollers driving its CS, U/D, and INC inputs?
Yes, the X9313UM-3 accepts TTL/CMOS-compatible logic levels: VIH ≥ 2.0V and VIL ≤ 0.8V under recommended operating conditions. Since 3.3V MCUs typically drive outputs >2.4V for HIGH and <0.4V for LOW, they meet these thresholds directly - no level-shifting circuitry is required. Input leakage current is limited to ±10 µA, ensuring minimal loading on GPIO pins during sustained CS or U/D assertion.
X9313UM-3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- 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-3 FAQ
1.How can I place an order for X9313UM-3 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9313UM-3 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-3 reliable?
The price and inventory of X9313UM-3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9313UM-3 is usually 5 days.
3.What payment methods are accepted for X9313UM-3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9313UM-3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9313UM-3?
X9313UM-3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9313UM-3 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-3?
For technical support, including X9313UM-3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9313UM-3 requirements.
6.How does Aetrix verify that X9313UM-3 is sourced from the original manufacturer or authorized distributors?
All X9313UM-3 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-3 meets industry standards.
7.What is the process for return or replacement of X9313UM-3?
All X9313UM-3 units undergo pre-shipment inspection (PSI). If there is an issue with X9313UM-3, 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-3 part is unused and in its original packaging.
Return procedure for X9313UM-3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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