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Renesas X9241AMVZ
- Part No.:
- X9241AMVZ
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
X9241AMVZ.pdf
- Description:
- IC DG POT 2/10/10/50KOHM 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:570
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Product details
Overview
X9241AMVZ from Intersil is a quad digital controlled potentiometer (XDCP™) IC with nonvolatile storage, 2-wire I²C interface, 64-tap resolution per channel, and 20-lead TSSOP package. It implements four independent resistor arrays (2kΩ/10kΩ/10kΩ/50kΩ), each with volatile wiper counter registers and four nonvolatile data registers. Used for precision analog trimming in programmable power supplies and sensor calibration circuits.
For engineers reviewing the X9241AMVZ datasheet, X9241AMVZ pinout, X9241AMVZ application, or X9241AMVZ equivalent, this page delivers verified electrical specs, cascade-mode operation details, wiper current limits, EEPROM endurance (100k cycles), and real-world use cases requiring stable multi-channel resistance adjustment without mechanical wear.
Technical Context
The X9241AMVZ integrates four monolithic CMOS resistor arrays-each with 63 resistive segments and FET-switched wiper taps-controlled via a standard 2-wire I²C bus. Each array has dedicated volatile Wiper Counter Registers (WCR) and four nonvolatile Data Registers (DR0–DR3), enabling persistent storage of up to four wiper positions per pot.
It supports cascade mode (via CM bit in WCR) to combine adjacent arrays into extended resistance values (e.g., 4kΩ–200kΩ), and features dual-mode wiper control: direct register write, global transfer, or real-time increment/decrement via clocked SCL pulses. Terminal voltage range is –3.0V to +5V, with ±1% absolute linearity and 100-year data retention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Interface | 2-wire I²C-compatible serial bus with address pins A0–A3; supports up to 16 devices on same bus. |
| Resistance Values | Pot 0 = 2kΩ, Pot 1 = 10kΩ, Pot 2 = 10kΩ, Pot 3 = 50kΩ - fixed per X9241AMVZ ordering variant. |
| Resolution | 64 taps per potentiometer (6-bit wiper position); step size = RTOTAL / 63 (e.g., ~31.7Ω for 2kΩ). |
| Nonvolatile Memory | 16 bytes total (4 registers × 4 pots); 100,000 write cycles endurance; 100-year data retention at +25°C. |
| Terminal Voltage Range | –3.0V to +5V on VH/RH, VL/RL, VW/RW pins - enables bidirectional signal biasing and AC-coupled applications. |
| Power Supply | VCC = 5V ±10%; active supply current = 3mA typical; standby current = 200–500µA. |
| Timing | I²C clock frequency ≤100kHz; nonvolatile write cycle time = 10ms max; wiper response delay = 500µs after STOP. |
Pinout & Package
Package: 20-lead Thin Shrink Small Outline Package (TSSOP), RoHS-compliant, 6.5mm × 4.4mm body, 0.65mm lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 (A0–A3) | Slave Address Inputs | Set LSBs of 8-bit I²C slave address (0101xxxx); enable up to 16 devices on same bus. |
| 5 (SDA) | Serial Data I/O | Open-drain bidirectional bus line; requires external pull-up; supports wire-OR with other I²C devices. |
| 6 (SCL) | Serial Clock Input | Master-generated clock; controls timing of all read/write/transfer operations; defines valid data windows. |
| 7–10, 13–16 (VH0–VH3, VL0–VL3) | Potentiometer Terminals | Fixed end terminals per array; VH/RH = high-side, VL/RL = low-side; support ±3V to +5V differential swing. |
| 11–12, 17–20 (VW0–VW3) | Wiper Outputs | Analog output nodes; electrically isolated when DW bit = 1; wiper resistance ≤130Ω typical. |
| 19 (VSS) | Ground Reference | Primary substrate and logic ground; must be connected before VCC during power-up sequencing. |
| 20 (VCC) | Supply Voltage | +5V ±10% supply; ramp rate 0.2–50 V/ms; must reach 90% before applying signals to pot pins. |
Key Features
| Feature | Design Value |
|---|---|
| Quad independent XDCP arrays | Four fully isolated 64-tap potentiometers in single 20-pin TSSOP; eliminates board space and BOM count vs discrete solutions. |
| Cascade mode support | CM bit in WCR enables linking adjacent arrays (e.g., Pot2→Pot3) for extended resistance ranges (4kΩ–200kΩ) with single wiper control. |
| Nonvolatile wiper recall | Power-up automatically loads DR0 into WCR for each pot - ensures repeatable startup resistance without host initialization. |
| Real-time wiper adjustment | Increment/decrement command allows dynamic fine-tuning via SCL clock edges - no full register write required for small adjustments. |
| High-reliability memory | 100,000 write cycles per register bit and 100-year data retention - suitable for field-programmable calibration in industrial equipment. |
Applications
| Programmable Power Supply Trim | Sensor Signal Conditioning |
|---|---|
|
Use Scenario: Adjusting feedback divider ratio in DC-DC converter error amplifiers to maintain precise output voltage across temperature and load variations. IC Role / Device Role / Timing Role: Four-channel resistance tuner replacing mechanical trimpots; each pot sets VOUT scaling, current limit threshold, soft-start time, and compensation network. Use Value: Enables factory calibration and field recalibration without soldering; 64-step resolution provides <±0.5% output accuracy over 0–70°C. |
Use Scenario: Biasing and gain-setting for bridge-based pressure sensors in HVAC and industrial monitoring systems. IC Role / Device Role / Timing Role: Dual-pot configuration: one adjusts sensor excitation voltage (VH0/VL0), another sets instrumentation amplifier gain (VH1/VL1). Use Value: Compensates for sensor offset and sensitivity drift; nonvolatile storage retains calibrated values through power cycles and firmware updates. |
| Audio Channel Balance Control | Industrial DAC Output Calibration |
|
Use Scenario: Digital volume and left/right channel balance in professional audio mixers using analog summing architecture. IC Role / Device Role / Timing Role: Two pots (Pot0, Pot1) act as variable attenuators in signal path; third (Pot2) adjusts master gain; fourth (Pot3) calibrates reference level. Use Value: Eliminates mechanical wear and contact noise; 1.6% resolution ensures smooth, click-free level transitions under microcontroller control. |
Use Scenario: Nulling offset and scaling full-scale output of 12-bit DACs in PLC analog output modules. IC Role / Device Role / Timing Role: Pot0 trims DAC zero-scale error; Pot1 adjusts gain; Pot2/Pot3 store calibration coefficients in NV registers for auto-recall on boot. Use Value: Achieves <±1 LSB total unadjusted error; cascade mode extends effective range to match 0–10V or ±10V output spans. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad digital potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5242BRUZ10 | 2-channel, 256-tap, I²C interface; 10kΩ end-to-end; no cascade mode; 50k write cycles. | Limited to two channels; higher resolution but lower endurance and no multi-array linking capability. | Choose when dual-channel precision outweighs need for four independent pots or cascading. |
| MCP42010-I/SL | Dual-channel, SPI interface, 10kΩ, 256-tap; volatile-only memory; no nonvolatile registers. | Requires host MCU to reinitialize wiper positions at every power-on; unsuitable for unattended recalibration. | Prefer where SPI is already used in system and persistent settings are managed externally. |
Compared with AD5242BRUZ10 and MCP42010-I/SL, the X9241AMVZ uniquely delivers four nonvolatile channels with cascade capability and guaranteed 100-year data retention - critical for maintenance-free calibration in embedded industrial controllers.
Availability
X9241AMVZ is available at Aetrix Electronics and suitable for programmable power supplies, sensor signal conditioning, audio channel balancing, and industrial DAC calibration requiring stable component supply across long-lifecycle designs.
Supply support for X9241AMVZ 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 leader in precision analog and power management ICs, now part of Renesas Electronics, delivering high-reliability solutions for industrial, infrastructure, and computing markets.
The X9241A family was designed specifically for replacing mechanical potentiometers in digitally calibrated analog systems - emphasizing nonvolatile storage, multi-channel integration, and robust I²C interoperability.
FAQ
What is the exact resistance configuration of the X9241AMVZ?
The X9241AMVZ has a fixed per-channel resistance configuration: Potentiometer 0 = 2kΩ, Potentiometer 1 = 10kΩ, Potentiometer 2 = 10kΩ, and Potentiometer 3 = 50kΩ. This configuration is specified in the Ordering Information table of the FN8164 datasheet and applies exclusively to the X9241AMVZ variant - not interchangeable with other X9241A suffixes like X9241AMSZ or X9241AWVZ.
Does the X9241AMVZ support true I²C bus arbitration and multi-master operation?
No - the X9241AMVZ operates strictly as an I²C slave device and does not implement bus arbitration logic. It responds only to its assigned 7-bit slave address (0101xxxx) and cannot detect or resolve collisions during simultaneous master transmissions. System design must ensure single-master control of the bus segment hosting the X9241AMVZ.
Can the X9241AMVZ wiper terminals handle bipolar analog signals?
Yes - the X9241AMVZ supports terminal voltages from –3.0V to +5V relative to VSS, enabling true bipolar operation (e.g., ±2.5V signals) across all VH/RH, VL/RL, and VW/RW pins. This is confirmed in the Absolute Maximum Ratings and Analog Specifications sections of the FN8164 datasheet, making it suitable for AC-coupled sensor interfaces and audio applications.
How does cascade mode function across multiple X9241AMVZ devices?
Cascade mode operates only within a single X9241AMVZ IC - between its internal Pot 0–3 arrays - and does not extend across multiple physical devices. The CM bit in each WCR links adjacent on-die arrays (e.g., Pot2 to Pot3); inter-device cascading requires external wiring and separate control, which is unsupported by the X9241AMVZ's architecture or instruction set.
What is the minimum VCC ramp rate required for reliable power-up behavior of the X9241AMVZ?
The X9241AMVZ requires a VCC ramp rate between 0.2 V/ms and 50 V/ms, as specified in the Power-up Timing section of FN8164. Slower ramps risk incomplete internal reset; faster ramps may induce latch-up. Additionally, VCC must reach ≥90% of final value before any potentiometer pins (VH/VL/VW) are driven, and polarity reversal must stay below 0.5V to prevent register corruption.
X9241AMVZ 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:
- 0°C ~ 70°C
- Resistance - Wiper (Ohms) (Typ):
- 40
X9241AMVZ FAQ
1.How can I place an order for X9241AMVZ through Aetrix?
Please submit a Request for Quotation (RFQ) for X9241AMVZ 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 X9241AMVZ reliable?
The price and inventory of X9241AMVZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9241AMVZ is usually 5 days.
3.What payment methods are accepted for X9241AMVZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9241AMVZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9241AMVZ?
X9241AMVZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9241AMVZ 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 X9241AMVZ?
For technical support, including X9241AMVZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9241AMVZ requirements.
6.How does Aetrix verify that X9241AMVZ is sourced from the original manufacturer or authorized distributors?
All X9241AMVZ 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 X9241AMVZ meets industry standards.
7.What is the process for return or replacement of X9241AMVZ?
All X9241AMVZ units undergo pre-shipment inspection (PSI). If there is an issue with X9241AMVZ, 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 X9241AMVZ part is unused and in its original packaging.
Return procedure for X9241AMVZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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