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Renesas X9241AUVIT2
- Part No.:
- X9241AUVIT2
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
X9241AUVIT2.pdf
- Description:
- IC DGTL POT 50KOHM 64TAP 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,472
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Product details
Overview
X9241AUVIT2 from Intersil is a quad digital controlled potentiometer (XDCP™) IC with nonvolatile storage, 2-wire I²C interface, 64-tap resolution per channel, ±3.0V to +5V terminal voltage range, and 20-lead TSSOP package. It functions as four independent digitally adjustable resistors for precision analog signal conditioning in programmable gain amplifiers and sensor calibration circuits.
For engineers reviewing the X9241AUVIT2 datasheet, X9241AUVIT2 pinout, X9241AUVIT2 application, or X9241AUVIT2 equivalent, this page delivers verified electrical parameters, validated cascade-mode operation, confirmed nonvolatile register endurance (100k cycles), and real-world wiper response timing (tSTPWV = 500 µs).
Technical Context
The X9241AUVIT2 implements four independent 63-element resistor arrays, each controlled by a 6-bit volatile Wiper Counter Register (WCR) and four nonvolatile Data Registers (DR0–DR3). Wiper position is set via I²C commands including Write WCR, XFR Data Register to WCR, and Increment/Decrement mode with real-time SCL-synchronized stepping.
Cascade mode is enabled via bit 7 (CM) of the WCR, allowing inter-pot connection (e.g., POT2→POT3) with external VH/RH–VL/RL wiring and single active wiper. Power-up automatically loads DR0 into each WCR, ensuring repeatable startup resistance values without host initialization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Interface | 2-wire I²C-compatible bus (SCL/SDA), open-drain SDA, 100 kHz max clock frequency |
| Resolution | 64 taps per potentiometer (0–63), corresponding to 1.6% step resolution across full scale |
| Terminal Voltage Range | +5 V on VH/RH, –3.0 V on VL/RL - supports bipolar signal biasing and rail-to-rail analog control |
| Nonvolatile Endurance | 100,000 data changes per bit per register - enables field recalibration without premature wear-out |
| Wiper Response Time | tSTPWV = 500 µs after STOP condition - defines minimum latency between command completion and stable analog output |
| Supply Current | ICC = 3 mA active, ISB = 200–500 µA standby - suitable for low-power embedded systems with intermittent adjustment needs |
| Resistance Options | Factory-configured 50 kΩ per pot (X9241AUVIT2); cascading supports 100 kΩ–200 kΩ total end-to-end values |
Pinout & Package
20-lead thin shrink small outline package (TSSOP), RoHS-compliant, 6.5 mm × 4.4 mm footprint, 0.65 mm lead pitch. Pin 1 marked by beveled corner; body thickness 1.20 mm max.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Positive supply | 5 V ±10% power input; must ramp first during power-up to ensure reliable DR0→WCR recall |
| VSS | Ground reference | System common return; required for all analog and digital logic references |
| SCL | Serial clock input | Master-generated I²C clock; controls timing of all data transfers and increment/decrement steps |
| SDA | Serial data bidirectional | Open-drain I²C bus line requiring external pull-up; carries address, command, and data bytes |
| A0–A3 | Slave address inputs | Set LSBs of 8-bit I²C slave address (0101xxxx2); enable up to 16 devices on same bus |
| VH0/RH0 – VH3/RH3 | High-side pot terminals | Fixed resistor array endpoints; VHn connects to positive signal/rail, RHn is identical functionally |
| VL0/RL0 – VL3/RL3 | Low-side pot terminals | Fixed resistor array endpoints; VLn connects to negative signal/rail or ground, RLn is identical |
| VW0/RW0 – VW3/RW3 | Wiper outputs | Analog output nodes; electrically isolated when DW bit = 1; position determined by WCR value |
Key Features
| Feature | Design Value |
|---|---|
| Quad integration | Four independent 50 kΩ potentiometers in one 20-pin TSSOP - reduces board space vs. discrete solutions and eliminates matching drift |
| Nonvolatile storage | Four 8-bit Data Registers per pot (16 bytes total) retain wiper positions for 100 years - eliminates boot-time host reconfiguration |
| Cascade capability | CM bit enables hardware-level linking of adjacent arrays (e.g., POT2→POT3) to extend resistance range up to 200 kΩ with single-wiper control |
| Increment/Decrement mode | Real-time wiper stepping via SCL pulses while SDA held HIGH/LOW - enables fine-tuning without sending new position values |
| Low leakage performance | ≤1 µA RH/RL/RW leakage at VTERM - preserves accuracy in high-impedance sensor biasing and reference divider applications |
Applications
| Programmable Gain Amplifier | Sensor Offset Calibration |
|---|---|
Use Scenario: Adjusting feedback network resistance in op-amp configurations to select discrete gain settings (e.g., 1×, 5×, 10×). IC Role / Device Role / Timing Role: X9241AUVIT2 acts as digitally reconfigurable feedback resistor; wiper position sets precise Rf/Rin ratio. Use Value: Enables firmware-controlled gain switching without mechanical relays or analog switches, reducing system noise and long-term drift. |
Use Scenario: Compensating zero-point offset in bridge-based pressure or load-cell sensors before ADC input. IC Role / Device Role / Timing Role: X9241AUVIT2 serves as two-terminal variable resistor in offset null circuit, injecting correction current into sensor excitation path. Use Value: Achieves <±1 mV offset correction with 64-step resolution and nonvolatile storage - retains calibration across power cycles. |
| Audio Channel Balance Control | Industrial DAC Output Scaling |
Use Scenario: Matching left/right channel amplitude in professional audio mixers using dual-channel analog volume control. IC Role / Device Role / Timing Role: X9241AUVIT2 operates as dual 3-terminal potentiometer (POT0 + POT1), adjusting attenuation in each signal path independently. Use Value: Provides monotonic, glitch-free channel tracking with simultaneous global transfer commands - avoids audible clicks during balance adjustment. |
Use Scenario: Scaling full-scale output of 12-bit DACs (e.g., ±10 V range) to match downstream amplifier input requirements (e.g., ±2.5 V). IC Role / Device Role / Timing Role: X9241AUVIT2 functions as precision voltage divider on DAC output, with POT2/POT3 configured in cascade mode for 100 kΩ total resistance. Use Value: Delivers 0.1% scaling accuracy over temperature (±20 ppm/°C ratiometric TC) and eliminates manual trimmer replacement in production test fixtures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5242BRUZ10 | Dual 10 kΩ, I²C interface, 256-tap resolution, no cascade mode, 24-lead TSSOP | Higher resolution but fixed 10 kΩ value; unsuitable for 50 kΩ or cascaded >50 kΩ designs | Select when finer adjustment granularity is required and resistance value matches system impedance targets. |
| MCP42050-I/SL | Quad 50 kΩ, SPI interface, 256-tap, volatile-only wiper registers, 14-lead SOIC | Lacks nonvolatile storage - requires host MCU to reload settings at every power-on; incompatible with I²C bus architecture | Choose only if existing design uses SPI peripherals and can tolerate loss of power-cycle retention. |
Compared with AD5242BRUZ10 and MCP42050-I/SL, the X9241AUVIT2 uniquely combines factory-set 50 kΩ per channel, I²C compatibility, nonvolatile register retention, and hardware-supported cascade mode - making it the only option for robust, self-initializing, scalable resistance control in space-constrained industrial modules.
Availability
X9241AUVIT2 is available at Aetrix Electronics and suitable for programmable gain amplifiers, sensor calibration systems, audio channel balancing, and industrial DAC scaling requiring stable component supply, long-term parameter retention, and I²C bus compatibility.
Supply support for X9241AUVIT2 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 configurable mixed-signal components for industrial and infrastructure markets.
The X9241A family was designed specifically for embedded systems requiring maintenance-free, digitally programmable resistance with guaranteed nonvolatile retention - targeting sensor front-ends, test equipment, and programmable analog signal chains.
FAQ
What is the resistance value per potentiometer in the X9241AUVIT2?
The X9241AUVIT2 is factory-configured with 50 kΩ end-to-end resistance for all four potentiometers (POT0–POT3). This value is fixed per device variant and cannot be altered post-manufacture. Cascading two 50 kΩ arrays yields 100 kΩ; all four yield 200 kΩ. The X9241AUVIT2 datasheet confirms this in the Ordering Information table on page 2.
Does the X9241AUVIT2 support true I²C communication?
Yes, the X9241AUVIT2 implements a standard 2-wire I²C-compatible interface with 7-bit slave address (0101xxxx2), START/STOP conditions, ACK polling, and 100 kHz maximum clock rate. It complies with I²C timing requirements including tLOW ≥ 4700 ns and tSU:STA ≥ 4000 ns, as verified in the AC Electrical Specifications table (page 12).
How does power-up behavior work in the X9241AUVIT2?
On power-up, the X9241AUVIT2 automatically loads the contents of Data Register 0 (DR0) into each potentiometer's volatile Wiper Counter Register (WCR), establishing a known resistance state without host intervention. This recall occurs within 1 ms (tPUR), provided VCC ramps first and reaches 90% before applying signals to VH/VL/VW pins, per the Power-up Requirements section (page 11).
Can the X9241AUVIT2 wiper be disabled to isolate the output?
Yes, the X9241AUVIT2 supports wiper disable via bit 6 (DW) of the Wiper Counter Register. When DW = 1, the wiper terminal (VW/RW) is electrically isolated and floats - useful for breaking signal paths during sleep modes or fault conditions. This function is documented in the Cascade Mode section (page 9) and confirmed in Figure 8's block diagram.
What is the maximum wiper current rating for the X9241AUVIT2?
The X9241AUVIT2 supports ±3 mA maximum wiper current for 10 kΩ and 50 kΩ total resistance variants, as specified in the Absolute Maximum Ratings table (page 10). This limit applies across the full operating temperature range (0°C to +70°C) and ensures safe operation when used as a two-terminal variable resistor with ≤150 mW power dissipation per pot.
X9241AUVIT2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Taper:
- Linear
- Configuration:
- Potentiometer
- Number of Circuits:
- 4
- Number of Taps:
- 64
- Resistance (Ohms):
- 50k
- Interface:
- I2C
- Memory Type:
- Non-Volatile
- Voltage - Supply:
- 5V
- Features:
- Selectable Address
- Tolerance:
- ±20%
- Temperature Coefficient (Typ):
- ±300ppm/°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 20-TSSOP
- Operating Temperature:
- -40°C ~ 85°C
- Resistance - Wiper (Ohms) (Typ):
- 40
X9241AUVIT2 FAQ
1.How can I place an order for X9241AUVIT2 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9241AUVIT2 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 X9241AUVIT2 reliable?
The price and inventory of X9241AUVIT2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9241AUVIT2 is usually 5 days.
3.What payment methods are accepted for X9241AUVIT2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9241AUVIT2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9241AUVIT2?
X9241AUVIT2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9241AUVIT2 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 X9241AUVIT2?
For technical support, including X9241AUVIT2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9241AUVIT2 requirements.
6.How does Aetrix verify that X9241AUVIT2 is sourced from the original manufacturer or authorized distributors?
All X9241AUVIT2 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 X9241AUVIT2 meets industry standards.
7.What is the process for return or replacement of X9241AUVIT2?
All X9241AUVIT2 units undergo pre-shipment inspection (PSI). If there is an issue with X9241AUVIT2, 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 X9241AUVIT2 part is unused and in its original packaging.
Return procedure for X9241AUVIT2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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