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Renesas X9241AMVIZ
- Part No.:
- X9241AMVIZ
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
X9241AMVIZ.pdf
- Description:
- IC DG POT 2/10/10/50KOHM 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,542
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Product details
Overview
X9241AMVIZ from Intersil is a quad digital controlled potentiometer (XDCP™) IC with nonvolatile storage, 2-wire I²C interface, 64-tap resolution per channel, and -40°C to +85°C industrial temperature range. It integrates four independent resistor arrays (2kΩ/10kΩ/10kΩ/50kΩ), each with volatile wiper counter register (WCR) and four nonvolatile data registers (DR0–DR3), enabling precise analog voltage division in programmable gain stages and sensor calibration circuits.
For engineers reviewing the X9241AMVIZ datasheet, X9241AMVIZ pinout, X9241AMVIZ application, or X9241AMVIZ equivalent, this device supports cascaded resistor arrays up to 200kΩ, offers 100-year data retention and 100,000-cycle endurance per register, and operates with ±3.0V to +5V terminal voltage compliance - critical for precision biasing and trimming in mixed-signal embedded systems.
Technical Context
The X9241AMVIZ implements four monolithic CMOS resistor arrays, each composed of 63 discrete segments and 64 tap points controlled by a 6-bit Wiper Counter Register (WCR). Each array supports three-terminal potentiometer or two-terminal variable resistor configurations with VH/RH, VL/RL, and VW/RW terminals.
It uses a bidirectional 2-wire I²C-compatible interface with slave address formed by fixed 0101b prefix and user-configurable A0–A3 pins. All register operations - including WCR write, DR read/write, and global transfer - follow defined instruction byte formats with ACK polling support for nonvolatile writes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resistor values | Pot 0 = 2kΩ, Pot 1 = 10kΩ, Pot 2 = 10kΩ, Pot 3 = 50kΩ - enables multi-range gain/bias control without external scaling |
| Resolution | 64 taps per potentiometer - provides 1.56% step resolution for fine analog adjustment |
| Interface | 2-wire I²C-compatible serial bus - allows daisy-chaining with shared SCL/SDA and hardware address selection via A0–A3 |
| Nonvolatile memory | 16 bytes (4 × 4 registers) - stores up to four wiper positions per pot, retained for 100 years |
| Terminal voltage range | +5V, -3.0V - supports bipolar signal conditioning and single-supply operation with headroom |
| Endurance | 100,000 data changes per bit per register - ensures long-term reliability in field-programmable calibration loops |
| Power-up behavior | Recalls DR0 to WCR - guarantees known initial wiper position after reset or cold start |
Pinout & Package
20-lead TSSOP package (RoHS-compliant, Pb-free matte tin finish), 6.5mm × 4.4mm body, 0.65mm lead pitch, designed for surface-mount reflow assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SCL | Serial clock input | Master-generated clock synchronizing all I²C transfers; requires external pull-up |
| SDA | Serial data bidirectional I/O | Open-drain line shared across multiple slaves; requires external pull-up resistor |
| A0–A3 | Slave address inputs | Set LSBs of 8-bit I²C address (0101xxxxb); enable up to 16 devices on same bus |
| VCC | Positive supply | 5V ±10% logic and analog supply; must ramp before pot pins per power-up sequencing |
| VSS | Ground reference | Common return for logic, interface, and analog sections; low-impedance connection required |
| VH0/RH0 – VH3/RH3 | High-side pot terminals | Fixed end of resistor array; VHx connects to positive rail or signal source |
| VL0/RL0 – VL3/RL3 | Low-side pot terminals | Fixed end of resistor array; VLx connects to ground or negative rail |
| VW0/RW0 – VW3/RW3 | Wiper outputs | Analog output node; position determined by WCR; electrically isolatable via DW bit |
Key Features
| Feature | Design Value |
|---|---|
| Quad independent XDCP arrays | Four fully isolated 64-tap potentiometers in one die - reduces board space vs. discrete solutions and eliminates inter-channel crosstalk |
| Cascadable resistor arrays | Supports external wiring of VLx to VHy to create 4kΩ–200kΩ composite values - extends usable resistance range without redesign |
| Register-oriented command set | Direct WCR/DR access, global transfers, and increment/decrement modes - enables real-time tuning and factory calibration workflows |
| Wiper disable (DW bit) | Bit 6 of WCR disables wiper output, floating VWx - prevents unintended loading during standby or fault conditions |
| Cascade mode (CM bit) | Bit 7 of WCR enables inter-pot cascading; automatic wiper transition across arrays - simplifies multi-kΩ analog path control |
Applications
| Audio Signal Level Control | Laser Diode Bias Calibration |
|---|---|
|
Use Scenario: Programmable volume/gain control in professional audio mixers with recallable presets. IC Role / Device Role / Timing Role: Four-channel digital potentiometer providing DC-coupled attenuation and offset adjustment for op-amp feedback networks. Use Value: DR0–DR3 store calibrated settings per channel; power-up recall ensures consistent startup level without host MCU intervention. |
Use Scenario: Factory-trimmed bias current setting for telecom laser diodes requiring stable optical output power. IC Role / Device Role / Timing Role: Precision 2kΩ/10kΩ dual-pot configuration sets reference voltage and current limit in constant-current driver stage. Use Value: 100-year nonvolatile retention preserves calibration across product lifetime; ±1 MI absolute linearity ensures <±1% current error at full scale. |
| Industrial Sensor Offset Compensation | Programmable Power Supply Feedback |
|
Use Scenario: Temperature-compensated zero-point correction for strain gauge bridges in load cells. IC Role / Device Role / Timing Role: Single potentiometer (Pot 0, 2kΩ) used as two-terminal variable resistor in Wheatstone bridge arm. Use Value: 64-tap resolution enables sub-mV offset tuning; -40°C to +85°C rating matches industrial sensor operating envelope. |
Use Scenario: Adjustable output voltage setting in isolated DC-DC converters using optocoupler feedback. IC Role / Device Role / Timing Role: Pot 3 (50kΩ) replaces mechanical trimmer in TL431-based shunt regulator feedback divider. Use Value: Cascadable architecture allows scaling to 100kΩ+ for high-voltage output designs; 50mW per-pot power rating handles typical feedback currents. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5242BRUZ10 | 2-channel, 256-tap, I²C, 10kΩ, ±20% tolerance, no cascade mode | Lacks quad-channel integration and cascading; higher resolution but lower voltage rating (+3.3V max) | Preferred when higher tap count is needed and only two channels required; not suitable for 5V or cascaded designs |
| MCP42010-I/P | Dual-channel, SPI interface, 10kΩ, volatile-only memory, DIP-14 package | No nonvolatile storage; requires host MCU to reload wiper positions on power-up | Appropriate for cost-sensitive, non-recall applications where SPI is preferred and industrial temp range is not required |
Compared with AD5242BRUZ10 and MCP42010-I/P, the X9241AMVIZ uniquely delivers quad-channel nonvolatile operation with cascading capability and industrial temperature support - making it optimal for embedded systems requiring field-programmable, self-initializing analog trimming without host dependency.
Availability
X9241AMVIZ is available at Aetrix Electronics and suitable for industrial sensor calibration, programmable power supplies, audio equipment design, and laser diode biasing requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for X9241AMVIZ 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 mixed-signal solutions for industrial and infrastructure markets.
The X9241A family was designed specifically for digitally programmable analog trimming in embedded systems requiring nonvolatile configuration, multi-channel independence, and robust I²C interoperability - targeting applications where mechanical potentiometers fail due to wear or environmental stress.
FAQ
What is the resistor value configuration for X9241AMVIZ?
The X9241AMVIZ has a fixed per-channel resistance configuration: Pot 0 = 2kΩ, Pot 1 = 10kΩ, Pot 2 = 10kΩ, and Pot 3 = 50kΩ. This arrangement is specified in the Ordering Information table of the FN8164 datasheet and cannot be altered post-manufacture. The X9241AMVIZ does not support user-selectable resistor values - its value set is hardwired to enable optimized performance across gain, bias, and calibration use cases.
Does X9241AMVIZ support cascading between its internal potentiometers?
Yes, the X9241AMVIZ supports cascading via the Cascade Mode (CM) bit in the Wiper Counter Register. When CM = 1, adjacent arrays (e.g., Pot 2 to Pot 3) are linked externally by connecting VLx to VHy, enabling composite resistance values from 4kΩ up to 200kΩ. The X9241AMVIZ datasheet confirms this functionality on page 9, including timing and wiper transition behavior across cascaded arrays.
What is the maximum terminal voltage rating for X9241AMVIZ?
The X9241AMVIZ supports terminal voltages from -3.0V to +5V referenced to VSS, as specified in the "Features" section (page 1) and "Absolute Maximum Ratings" table (page 10) of the FN8164 datasheet. This bipolar rating allows use in AC-coupled signal paths and single-supply systems with negative headroom, unlike many digital pots limited to 0V–VCC operation.
How does X9241AMVIZ handle power-up initialization?
On power-up, the X9241AMVIZ automatically loads the contents of Data Register 0 (DR0) into the corresponding Wiper Counter Register (WCR) for each potentiometer. This behavior is explicitly documented in the "Principles of Operation" section (page 1) and "Wiper Counter Register" description (page 8) of the FN8164 datasheet, ensuring deterministic startup wiper positions without host MCU involvement.
Is X9241AMVIZ RoHS-compliant and what package type does it use?
Yes, the X9241AMVIZ is RoHS-compliant and supplied in a 20-lead Thin Shrink Small Outline Package (TSSOP), as confirmed in the Ordering Information table (page 2) and Package Drawing (page 15) of the FN8164 datasheet. Its Pb-free construction uses 100% matte tin plating with anneal (e3 finish), qualified for standard reflow soldering per IPC/JEDEC J-STD-020.
X9241AMVIZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Taper:
- Linear
- Configuration:
- Potentiometer
- Number of Circuits:
- 4
- Number of Taps:
- 64
- Resistance (Ohms):
- 2k, 10k, 10k, 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
X9241AMVIZ FAQ
1.How can I place an order for X9241AMVIZ through Aetrix?
Please submit a Request for Quotation (RFQ) for X9241AMVIZ 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 X9241AMVIZ reliable?
The price and inventory of X9241AMVIZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9241AMVIZ is usually 5 days.
3.What payment methods are accepted for X9241AMVIZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9241AMVIZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9241AMVIZ?
X9241AMVIZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9241AMVIZ 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 X9241AMVIZ?
For technical support, including X9241AMVIZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9241AMVIZ requirements.
6.How does Aetrix verify that X9241AMVIZ is sourced from the original manufacturer or authorized distributors?
All X9241AMVIZ 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 X9241AMVIZ meets industry standards.
7.What is the process for return or replacement of X9241AMVIZ?
All X9241AMVIZ units undergo pre-shipment inspection (PSI). If there is an issue with X9241AMVIZ, 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 X9241AMVIZ part is unused and in its original packaging.
Return procedure for X9241AMVIZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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