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Renesas X9313UM
- Part No.:
- X9313UM
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
X9313UM.pdf
- Description:
- IC DGTL POT 50KOHM 32TAP 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,953
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Product details
Overview
X9313UM 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 50kΩ end-to-end resistance. It operates from 3V to 5.5V, supports ±VCC terminal voltages, and is housed in an 8-lead MSOP package. It serves as a solid-state replacement for mechanical potentiometers in precision analog trimming applications.
For engineers reviewing the X9313UM datasheet, X9313UM pinout, X9313UM application, or X9313UM equivalent, key selection considerations include its 3-wire control protocol, 50kΩ RTOTAL tolerance (±20%), 100-year data retention, 100,000-cycle endurance, and compatibility with commercial temperature range (0°C to +70°C) systems requiring stable, memory-retentive resistance adjustment.
Technical Context
The X9313UM implements a resistor array of 31 precision elements with a digitally controlled wiper switch network, decoded from a 5-bit up/down counter. Its control logic uses edge-triggered INC input with U/D direction select and CS-gated store-on-high functionality.
Wiper position is retained in nonvolatile memory and recalled at power-up; terminal voltage range spans –VCC to +VCC, enabling bipolar signal conditioning. The device exhibits temperature-compensated linearity (±1 MI absolute, ±0.2 MI relative) and low wiper resistance (40Ω typical at VCC = 5V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-end resistance (RTOTAL) | 50kΩ ±20% - defines full-scale analog adjustment range and sets current limits in voltage divider or variable resistor configurations |
| Wiper resolution | 32 taps (31 segments) - provides 3.125% step resolution for fine-grained analog tuning |
| Supply voltage range | 3V to 5.5V - supports both 3.3V and 5V system rails without level-shifting |
| Terminal voltage range | –VCC to +VCC - enables bidirectional signal handling (e.g., AC-coupled audio or op-amp feedback networks) |
| Nonvolatile memory endurance | 100,000 data changes per bit - ensures long-term reliability in field-adjustable calibration systems |
| Data retention | 100 years - guarantees wiper position persistence across product lifetime without battery backup |
| Active supply current | ≤3mA max - minimizes power impact during active adjustment cycles |
| Standby current | ≤500µA max - supports low-power modes between adjustments |
Pinout & Package
Package: 8-lead MSOP (M8.118), body dimensions 3.0mm × 3.0mm × 1.1mm, lead pitch 0.65mm, RoHS-compliant matte tin finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Positive supply rail | Provides power for internal logic and resistor array; must be stabilized before CS activation to prevent spurious stores |
| VSS | Ground reference | Common return path for all digital inputs and analog terminals; requires low-impedance connection for noise immunity |
| CS | Chip Select | Active-low enable; rising edge with INC = HIGH triggers nonvolatile store; must be held high during standby to minimize current |
| U/D | Direction control | Logic level determines wiper increment/decrement on each INC falling edge; may change dynamically while CS is low |
| INC | Increment clock | Negative-edge triggered; each transition moves wiper one tap; timing requires tIH ≥ 1µs and tCYC ≥ 2µs |
| RH/VH | High terminal | Fixed end of resistor array; voltage polarity depends on external circuit, not internal labeling |
| RL/VL | Low terminal | Fixed opposite end of resistor array; forms complete resistive path with RH/VH and RW/VW |
| RW/VW | Wiper output | Movable tap point; series resistance ≤100Ω ensures minimal loading in feedback paths; "make-before-break" switching prevents open-circuit transients |
Key Features
| Feature | Design Value |
|---|---|
| 3-wire serial interface | Eliminates need for I²C/SPI peripherals-direct GPIO control reduces BOM count and firmware overhead |
| Nonvolatile wiper storage | Enables factory calibration or user-defined presets that survive power cycles without external EEPROM or battery |
| ±VCC terminal voltage support | Permits use in bipolar op-amp circuits (e.g., inverting amplifiers, AC-coupled filters) without external level-shifting components |
| Temperature-compensated resistor array | Maintains ±300 ppm/°C end-to-end drift and ±20 ppm/°C ratiometric stability-critical for precision sensor biasing |
| Make-before-break wiper switching | Prevents momentary open-circuit conditions during tap transitions-essential for stable operation in closed-loop feedback paths |
| MSOP-8 packaging | Offers 40% board area reduction vs. SOIC-8 while maintaining hand-solderability and thermal performance for space-constrained designs |
Applications
| Audio Signal Level Control | Laser Diode Bias Adjustment |
|---|---|
Use Scenario: Volume or gain control in professional audio mixers where mechanical pot wear and contact noise degrade performance over time. IC Role / Device Role / Timing Role: Replaces mechanical potentiometer in analog voltage divider configuration; wiper position sets attenuation ratio between RH/VH and RL/VL. Use Value: Eliminates scratchy audio artifacts and long-term drift; nonvolatile storage retains user-set levels across power cycles. | Use Scenario: Precision bias current setting for telecom laser diodes requiring stable optical output power over temperature and lifetime. IC Role / Device Role / Timing Role: Configures feedback resistance in LM317-based constant-current source; RH/VH connects to ADJ, RL/VL to VOUT, RW/VW to ADJ pin. Use Value: Enables factory-trimmed bias without manual adjustment; 100-year data retention ensures calibration integrity over equipment service life. |
| Industrial Sensor Calibration | Programmable Power Supply Feedback |
Use Scenario: Offset and gain trimming of bridge-based pressure or temperature sensors in industrial transmitters operating from –40°C to +85°C. IC Role / Device Role / Timing Role: Two-terminal variable resistor in op-amp instrumentation amplifier gain-setting network; RL/VL grounded, RW/VW connected to inverting input. Use Value: Supports automated calibration via microcontroller during production test; ±1 MI linearity ensures <0.1% full-scale error in final measurement accuracy. | Use Scenario: Dynamic output voltage programming in programmable DC power supplies used in semiconductor test equipment. IC Role / Device Role / Timing Role: Three-terminal potentiometer in TL431 shunt regulator feedback loop; RH/VH to VREF, RL/VL to ground, RW/VW to cathode. Use Value: Allows remote voltage setpoint updates via host MCU; 3-wire interface simplifies isolation design compared to digital potentiometers requiring I²C level shifters. |
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, 50kΩ, ±30% RTOTAL tolerance | Requires I²C master and pull-up resistors; higher resolution but looser resistance tolerance affects absolute accuracy | Preferred when dual independent pots or finer resolution are needed; less suitable for GPIO-limited microcontrollers |
| MCP41050-I/P | SPITM interface, single-channel, 257-tap resolution, 50kΩ, ±20% RTOTAL, volatile wiper register only | No nonvolatile storage-requires external EEPROM or MCU initialization at boot; faster SPI clock (10MHz vs. X9313UM's ~500kHz effective rate) | Chosen for cost-sensitive, high-volume designs where factory calibration suffices and power-loss recovery is handled externally |
Compared with AD5243BRMZ50 and MCP41050-I/P, the X9313UM offers unique value in GPIO-constrained, single-pot, nonvolatile-calibration applications-its 3-wire simplicity avoids bus arbitration and its 100-year memory eliminates external storage, making it optimal for embedded systems with minimal firmware overhead and long service life requirements.
Availability
X9313UM is available at Aetrix Electronics and suitable for industrial sensor calibration, programmable power supply feedback, audio signal level control, and laser diode bias adjustment requiring stable component supply, long-term calibration retention, and compact MSOP packaging.
Supply support for X9313UM 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 leading provider of precision analog and power management solutions, serving industrial, infrastructure, and high-end consumer markets with high-reliability ICs.
The X9313UM belongs to Intersil's XDCP™ (Digitally Controlled Potentiometer) family, designed specifically for replacing mechanical trimmers in applications demanding long-term stability, digital programmability, and nonvolatile calibration storage.
FAQ
What is the maximum allowable voltage across RH/VH and RL/VL terminals for the X9313UM?
The X9313UM supports a maximum differential voltage ΔV = |VH − VL| of 10V under recommended operating conditions. This rating applies across its full 3V to 5.5V supply range and enables use in higher-voltage analog signal paths such as op-amp outputs or regulated power supply feedback nodes. Exceeding 10V risks permanent damage to the internal resistor array switches.
Does the X9313UM require external components to operate its 3-wire interface?
No, the X9313UM requires no external passive components for basic 3-wire operation. Its CS, U/D, and INC inputs are CMOS-compatible with standard microcontroller GPIOs. Pull-up or pull-down resistors are optional and only needed if the host MCU cannot guarantee defined logic states during reset or power-up sequences.
How does the X9313UM handle power-up behavior, and can the default wiper position be overridden?
At power-up, the X9313UM automatically recalls the last stored wiper position from nonvolatile memory within 10µs. To override this behavior, the host system must assert CS LOW, then move the wiper using U/D and INC before releasing CS HIGH-this new position remains active until next power cycle unless explicitly stored.
Is the X9313UM pin-compatible with other members of the X9313 family, such as X9313USZ or X9313WMZ?
Yes-the X9313UM shares identical pinout and electrical interface with all X9313 variants (SOIC, MSOP, PDIP packages), including X9313USZ and X9313WMZ. Differences are limited to RTOTAL (50kΩ vs. 10kΩ), temperature grade (0°C to +70°C), and package type; no PCB layout changes are required when substituting within the same package footprint.
What is the wiper resistance specification for the X9313UM, and how does it affect circuit performance?
The X9313UM specifies wiper resistance RW as 40Ω typical (100Ω max) at VCC = 5V. This low on-resistance minimizes insertion loss and gain error in precision voltage divider or feedback resistor applications-especially critical in high-gain op-amp circuits where even 100Ω introduces measurable offset or bandwidth degradation.
X9313UM 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:
- 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 FAQ
1.How can I place an order for X9313UM through Aetrix?
Please submit a Request for Quotation (RFQ) for X9313UM 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 reliable?
The price and inventory of X9313UM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9313UM is usually 5 days.
3.What payment methods are accepted for X9313UM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9313UM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9313UM?
X9313UM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9313UM 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?
For technical support, including X9313UM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9313UM requirements.
6.How does Aetrix verify that X9313UM is sourced from the original manufacturer or authorized distributors?
All X9313UM 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 meets industry standards.
7.What is the process for return or replacement of X9313UM?
All X9313UM units undergo pre-shipment inspection (PSI). If there is an issue with X9313UM, 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 part is unused and in its original packaging.
Return procedure for X9313UM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
X9313UM Tags
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MCP4018T-103E/LT
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MCP4018T-503E/LT
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MCP4011T-103E/SN
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MCP4018T-502E/LT
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MCP4531T-103E/MF
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MCP4021T-202E/SN
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MCP4023T-103E/CH
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MCP4022T-503E/CH
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