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Renesas X9313UMIZ-3T1
- Part No.:
- X9313UMIZ-3T1
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
X9313UMIZ-3T1.pdf
- Description:
- IC DGTL POT 50KOHM 32TAP 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,814
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Product details
Overview
X9313UMIZ-3T1 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 ±VCC terminal voltage capability. It implements a 31-element resistor array with temperature-compensated end-to-end resistance tolerance of ±20%, operates from 3V to 5.5V, and is used for precision analog trimming in industrial sensor signal conditioning circuits.
For engineers reviewing the X9313UMIZ-3T1 datasheet, X9313UMIZ-3T1 pinout, X9313UMIZ-3T1 application, or X9313UMIZ-3T1 equivalent, key selection criteria include its -40°C to +85°C industrial temperature range, 50kΩ end-to-end resistance, MSOP-8 Pb-free RoHS-compliant package, and guaranteed 100-year data retention in nonvolatile memory.
Technical Context
The X9313UMIZ-3T1 integrates a 5-bit up/down counter, decode logic, and nonvolatile memory to control wiper position across 31 resistive elements. Its "make-before-break" switching ensures continuity during tap transitions, while the 3-wire interface enables simple microcontroller integration without clock or data lines beyond CS, U/D, and INC.
Wiper position is stored only when CS rises while INC is HIGH, enabling selective nonvolatile updates. The device powers up to the last stored position and supports both three-terminal potentiometer and two-terminal variable resistor configurations with terminal voltages ranging from -VCC to +VCC.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-end resistance (RTOTAL) | 50 kΩ ±20% - defines full-scale analog adjustment range and power dissipation limit (10 mW at 50 kΩ) |
| Wiper resolution | 32 taps - provides 3.125% step resolution per increment, enabling fine-grained analog tuning |
| Supply voltage range | 3 V to 5.5 V - supports dual-rail operation in mixed-signal systems with 3.3 V or 5 V logic domains |
| Terminal voltage range | -VCC to +VCC - allows bipolar signal handling (e.g., ±5 V inputs) without external level-shifting |
| Nonvolatile memory endurance | 100,000 write cycles - ensures long-term reliability in field-adjustable calibration applications |
| Data retention | 100 years - guarantees factory-set or user-trimmed values persist over product lifetime without backup power |
| Operating temperature | -40°C to +85°C - qualified for industrial environments including motor control and PLC I/O modules |
Pinout & Package
Package: 8-lead MSOP (Pb-free, RoHS compliant), dimensions per JEDEC MO-187-AA (M8.118), body size 3.0 mm × 3.0 mm × 1.1 mm max, 0.65 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Positive supply input | Provides power for internal logic and resistor array; must be stable before CS activation to prevent spurious stores |
| VSS | Ground reference | Common return for all digital and analog paths; requires low-impedance connection to minimize noise coupling into wiper output |
| CS | Chip select control | Active-low enable; rising edge with INC = HIGH triggers nonvolatile store; must be held high during standby to limit current to 500 µA |
| U/D | Direction control | Logic level determines wiper movement direction on each INC edge; may be changed dynamically during CS = LOW for bidirectional trimming |
| INC | Increment clock | 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; voltage polarity relative to wiper depends on U/D state, not absolute potential |
| RL/VL | Low terminal | Fixed end opposite RH/VH; forms complete resistive path with RH/VH; supports bidirectional voltage swing |
| RW/VW | Wiper output | Movable tap point; series resistance ≤100 Ω at 5 V enables direct connection to op-amp inputs without buffer degradation |
Key Features
| Feature | Design Value |
|---|---|
| Solid-state construction | Eliminates mechanical wear, contact bounce, and environmental sensitivity-enables >100,000 adjustments in sealed industrial enclosures |
| 3-wire serial interface | Requires only three GPIOs (CS/U/D/INC); no clock line or complex protocol overhead-reduces MCU pin count and firmware complexity |
| Nonvolatile wiper storage | Recalls last position at power-up without external EEPROM or battery backup-critical for zero-power-loss calibration in field-deployed equipment |
| ±VCC terminal voltage rating | Supports AC-coupled or bipolar analog signals (e.g., ±2.5 V sensor outputs) without external clamping diodes or rail-splitting networks |
| Temperature-compensated array | ±300 ppm/°C end-to-end TC and ±20 ppm/°C ratiometric TC ensure stable voltage division across -40°C to +85°C-essential for precision instrumentation |
Applications
| Industrial Sensor Calibration | Programmable Gain Amplifier |
|---|---|
Use Scenario: Adjusting offset and span in 4–20 mA transmitter front-ends using microcontroller-based auto-calibration routines. IC Role / Device Role / Timing Role: Two-terminal variable resistor setting feedback network gain and zero-point trim in precision op-amp circuits. Use Value: Enables field recalibration without potentiometer replacement; 100-year data retention preserves factory calibration across equipment lifecycle. | Use Scenario: Dynamically scaling analog sensor outputs (e.g., thermocouple, RTD) prior to ADC sampling in programmable logic controllers. IC Role / Device Role / Timing Role: Three-terminal potentiometer acting as programmable voltage divider in noninverting amplifier feedback loop. Use Value: Achieves 32-step gain resolution (1× to 10×) with <1% linearity error; ±VCC terminals support bipolar input signal ranges. |
| Motor Drive Current Sensing | Power Supply Voltage Trim |
Use Scenario: Calibrating shunt resistor gain in high-side current sensing for BLDC motor phase current monitoring. IC Role / Device Role / Timing Role: Two-terminal variable resistor adjusting sense amplifier gain to compensate for shunt tolerance and thermal drift. Use Value: Compensates for ±1% shunt variation and 100 ppm/°C drift over temperature; 50 kΩ value minimizes loading on high-impedance sense nodes. | Use Scenario: Fine-tuning output voltage of isolated DC-DC converters in telecom power modules during production test and field maintenance. IC Role / Device Role / Timing Role: Three-terminal potentiometer replacing mechanical trimmer in feedback divider of TL317/LM317-type regulators. Use Value: Eliminates manual adjustment labor; enables remote firmware-controlled voltage correction via UART-connected MCU. |
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, ±30% RTOTAL tolerance | Requires I²C bus and supports simultaneous dual-pot control; higher resolution but looser resistance tolerance | Select when multi-channel trimming or finer resolution outweighs need for 3-wire simplicity and tighter ±20% tolerance |
| MCP41050-I/P | SPITM interface, single-channel, 256-tap, 50 kΩ, ±20% RTOTAL, 2.7–5.5 V supply | Uses standard SPI with CS/SCK/SDI/SDO; lacks ±VCC terminal rating (max ±VDD) | Select when existing SPI infrastructure exists and bipolar signal handling is not required; verify compatibility with ±5 V analog rails |
Compared with AD5243BRMZ50 and MCP41050-I/P, the X9313UMIZ-3T1 offers simpler 3-wire control, guaranteed ±VCC terminal operation for true bipolar analog use, and industrial-grade temperature qualification-making it optimal for ruggedized embedded calibration where interface minimalism and signal integrity are prioritized over channel count or resolution.
Availability
X9313UMIZ-3T1 is available at Aetrix Electronics and suitable for industrial sensor calibration, programmable gain amplification, motor drive current sensing, and power supply voltage trim requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for X9313UMIZ-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 leading provider of precision analog and power management ICs, 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 industrial control, instrumentation, and embedded calibration systems-emphasizing nonvolatile retention, wide operating temperature, and robust analog signal integrity.
FAQ
What is the maximum allowable voltage across RH/VH and RL/VL terminals for X9313UMIZ-3T1?
The X9313UMIZ-3T1 supports a maximum differential voltage ΔV = |VH − VL| of 10 V, as specified for the X9313U variant in the Absolute Maximum Ratings table. This applies regardless of VCC level (3–5.5 V), enabling use in ±5 V signal chains. Exceeding 10 V risks permanent damage to the internal resistor array switches.
Does X9313UMIZ-3T1 require external pull-up resistors on its control pins?
No, the X9313UMIZ-3T1 does not require external pull-up resistors on CS, U/D, or INC. Its input leakage current is ±10 µA max, and VIH/VIL thresholds (2.0 V/0.8 V) are compatible with standard CMOS logic levels. Internal weak pull-downs are not present, so host MCU GPIOs must actively drive all control lines to defined states during operation and power-up sequencing.
How does the "make-before-break" switching behavior affect circuit design with X9313UMIZ-3T1?
The "make-before-break" action means multiple taps connect briefly during wiper transitions, temporarily reducing effective RTOTAL. For X9313UMIZ-3T1 (50 kΩ), this can cause momentary gain shifts in amplifier feedback networks. Designers should avoid rapid successive INC pulses in precision gain-setting applications and allow ≥5 µs settling (tIW) between adjustments to ensure stable VW output.
Can X9313UMIZ-3T1 be used in a 3.3 V system with ±3.3 V analog signals?
Yes. With VCC = 3.3 V, the X9313UMIZ-3T1 supports terminal voltages from -3.3 V to +3.3 V per the ±VCC specification. Its absolute maximum VH/VL rating remains ±6 V, providing 0.7 V margin. Ensure the host MCU's 3.3 V GPIOs meet VIH ≥ 2.0 V and VIL ≤ 0.8 V to reliably control CS, U/D, and INC in this configuration.
What is the wiper resistance specification for X9313UMIZ-3T1 at 3.3 V supply?
The datasheet specifies RW (wiper resistance) as 40 Ω typical and 100 Ω maximum at VCC = 5 V. While not explicitly tested at 3.3 V, the CMOS switch architecture implies lower on-resistance at reduced voltage; however, design margins should assume ≤100 Ω to guarantee performance across process/voltage/temperature corners. This value directly impacts gain error in low-impedance feedback networks.
X9313UMIZ-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:
- Active
- 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:
- -40°C ~ 85°C
- Resistance - Wiper (Ohms) (Typ):
- 40
X9313UMIZ-3T1 FAQ
1.How can I place an order for X9313UMIZ-3T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9313UMIZ-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 X9313UMIZ-3T1 reliable?
The price and inventory of X9313UMIZ-3T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9313UMIZ-3T1 is usually 5 days.
3.What payment methods are accepted for X9313UMIZ-3T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9313UMIZ-3T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9313UMIZ-3T1?
X9313UMIZ-3T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9313UMIZ-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 X9313UMIZ-3T1?
For technical support, including X9313UMIZ-3T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9313UMIZ-3T1 requirements.
6.How does Aetrix verify that X9313UMIZ-3T1 is sourced from the original manufacturer or authorized distributors?
All X9313UMIZ-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 X9313UMIZ-3T1 meets industry standards.
7.What is the process for return or replacement of X9313UMIZ-3T1?
All X9313UMIZ-3T1 units undergo pre-shipment inspection (PSI). If there is an issue with X9313UMIZ-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 X9313UMIZ-3T1 part is unused and in its original packaging.
Return procedure for X9313UMIZ-3T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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