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Renesas X9241AMSZ
- Part No.:
- X9241AMSZ
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
X9241AMSZ.pdf
- Description:
- IC DGT POT 2/10/10/50KOHM 20SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,081
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Product details
Overview
X9241AMSZ from Intersil is a quad digital controlled potentiometer (XDCP™) IC with nonvolatile storage, 2-wire I²C interface, 64-tap resolution per channel, and 2kΩ/10kΩ/50kΩ resistor array options. It functions as four independent digitally adjustable resistors in a single SOIC-20 package, used for precision analog trimming, gain control, and offset calibration in industrial sensor signal conditioning circuits.
For engineers reviewing the X9241AMSZ datasheet, X9241AMSZ pinout, X9241AMSZ application, or X9241AMSZ equivalent, this page delivers verified electrical parameters, confirmed SOIC-20 pin mapping, real-world use cases in programmable gain amplifiers and sensor biasing, and two validated alternative parts with documented functional differences.
Technical Context
The X9241AMSZ implements four independent 63-element resistor arrays with decoded 6-bit wiper counter registers (WCR), each backed by four nonvolatile data registers (DR0–DR3). Wiper position is controlled via I²C commands including direct write, register transfer, and increment/decrement modes.
It supports cascade mode (via CM bit in WCR) to combine adjacent arrays for extended resistance ranges (e.g., 4kΩ–200kΩ), and features dual-voltage terminal ratings (−3.0V to +5V), 100k-cycle endurance per register, and 100-year data retention - all operating within 0°C to +70°C commercial temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Interface | 2-wire I²C-compatible serial bus with open-drain SDA and clocked SCL |
| Resolution | 64 taps per potentiometer (6-bit wiper position control) |
| Resistor Values | Factory-configured per channel: Pot 0 = 2kΩ, Pot 1 = 10kΩ, Pot 2 = 10kΩ, Pot 3 = 50kΩ |
| Nonvolatile Memory | 16 bytes (4 × 4 registers), 100,000 write cycles, 100-year data retention |
| Terminal Voltage Range | −3.0V to +5V on VH/RH, VL/RL, and VW/RW pins |
| Supply Voltage | 5V ±10% (VCC), 3mA active current, 200–500µA standby current |
| Package | 20-lead SOIC (RoHS-compliant, Pb-free matte tin finish) |
Pinout & Package
20-lead SOIC package (JEDEC MS-013AC, 7.5mm width), RoHS-compliant, with 100% matte tin termination and MSL3 reflow rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 (A0–A3) | Address Inputs | Set LSBs of I²C slave address (0101xxxx binary); required for multi-device bus addressing |
| 5 (SDA) | Serial Data | Bidirectional open-drain I²C data line; requires external pull-up resistor |
| 6 (SCL) | Serial Clock | Input-only I²C clock line; controls timing of all read/write operations |
| 7–10, 13–16 (VH0–VH3, VL0–VL3) | Pot Terminal Inputs | Fixed end terminals of each resistor array; VH/RH = high-side, VL/RL = low-side |
| 11–12, 17–18 (VW0–VW3) | Wiper Outputs | Variable tap points; electrically isolated when DW bit = 1 in WCR |
| 19 (VSS) | Ground | Reference return for all analog and digital circuitry |
| 20 (VCC) | Supply | +5V ±10% power rail; must ramp monotonically during power-up for reliable DR0 recall |
Key Features
| Feature | Design Value |
|---|---|
| Quad integrated potentiometers | Four independent 64-tap resistor arrays in one SOIC-20 footprint - reduces board space vs. discrete solutions |
| Cascade mode support | CM bit enables inter-array linking (e.g., Pot2→Pot3) to extend effective resistance range up to 200kΩ |
| Volatile WCR + nonvolatile DRs | Wiper position resets to DR0 on power-up; DR0–DR3 store up to four distinct settings per pot |
| Increment/decrement command | Real-time fine-tuning via SCL pulses: HIGH = step toward VH, LOW = step toward VL - no host CPU overhead |
| Robust analog interface | −3.0V to +5V terminal voltage tolerance enables bipolar signal conditioning without level-shifting |
Applications
| Programmable Gain Amplifier | Sensor Offset Calibration |
|---|---|
Use Scenario: Adjusting feedback resistor ratio in op-amp-based instrumentation amplifiers to select discrete gain values (e.g., 1×, 10×, 100×). IC Role / Device Role / Timing Role: X9241AMSZ acts as digitally reconfigurable feedback network; each pot sets Rf/Rin ratio independently. Use Value: Enables firmware-controlled gain switching without mechanical relays or manual trimpots - improves test repeatability and field recalibration capability. |
Use Scenario: Compensating zero-point drift in bridge-based pressure or load-cell sensors across temperature and aging. IC Role / Device Role / Timing Role: X9241AMSZ provides precise DC bias injection at sensor output node via two-terminal variable resistor configuration. Use Value: Achieves <±1mV offset correction using DR0 recall on power-up - eliminates need for factory trim pots and reduces calibration labor. |
| Audio Channel Balance Control | Industrial DAC Output Scaling |
Use Scenario: Matching left/right channel amplitude in professional audio mixing consoles using dual-channel attenuation. IC Role / Device Role / Timing Role: X9241AMSZ operates as two-terminal variable resistor between DAC output and amplifier input, with independent control per channel. Use Value: Delivers 0.5dB step resolution (64 taps) and nonvolatile storage of user presets - supports recall of last-used balance setting after power cycle. |
Use Scenario: Scaling full-scale output of 12-bit DACs (e.g., AD5620) to match 0–5V or ±2.5V system input ranges in PLC analog modules. IC Role / Device Role / Timing Role: X9241AMSZ functions as three-terminal potentiometer in ratiometric divider configuration, referenced to DAC VREF. Use Value: Maintains <±0.2% relative linearity across temperature (±20 ppm/°C ratiometric TC) - ensures scaling accuracy over industrial temperature range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5204BRZ10 | Quad 10kΩ pot, SPI interface, 256-tap resolution, no cascade mode, ±5.5V supply | Requires SPI controller instead of I²C; higher resolution but lacks nonvolatile wiper recall on power-up | Choose for systems needing finer adjustment granularity and SPI-native architecture, accepting loss of automatic DR0 restore. |
| MCP42050-I/P | Dual 50kΩ pot, SPI interface, 256-tap, volatile-only memory, 2.7–5.5V supply | No nonvolatile storage; wiper resets to mid-scale on power-up; no cascade or multi-register capability | Choose for cost-sensitive, low-complexity designs where persistent settings are managed externally by MCU EEPROM. |
Compared with AD5204BRZ10 and MCP42050-I/P, the X9241AMSZ uniquely combines I²C simplicity, guaranteed power-up wiper recall from DR0, and hardware-supported cascade mode - making it optimal for compact, self-contained analog tuning in industrial control and sensor front-ends.
Availability
X9241AMSZ is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, programmable gain amplifiers, and embedded calibration systems requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for X9241AMSZ 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 (now part of Renesas Electronics) specializes in precision analog and power management ICs for industrial, infrastructure, and high-reliability applications.
The X9241A family was designed specifically for digitally reconfigurable analog front-ends in sensor interfaces, test equipment, and programmable instrumentation - emphasizing nonvolatile setting retention, multi-pot integration, and robust I²C operation.
FAQ
What is the exact resistor value configuration for each potentiometer in X9241AMSZ?
The X9241AMSZ is factory-configured with Pot 0 = 2kΩ, Pot 1 = 10kΩ, Pot 2 = 10kΩ, and Pot 3 = 50kΩ. This specific combination is defined in the Ordering Information table of the FN8164 datasheet and cannot be altered post-manufacture. Each potentiometer retains its assigned resistance value independently, enabling mixed-range analog adjustments within a single IC.
Does X9241AMSZ support true I²C compliance, including ACK polling and repeated start conditions?
Yes, X9241AMSZ fully supports standard I²C protocol features: it responds to 7-bit slave address 0101xxxx (where A0–A3 set LSBs), issues ACK after address and command bytes, and supports ACK polling during nonvolatile writes. The datasheet confirms compatibility with repeated START conditions and defines timing limits (tSU:STA, tHD:STA) aligned with I²C specification Rev. 2.1.
How does power-up behavior work for X9241AMSZ, and what happens if VCC ramps incorrectly?
On power-up, X9241AMSZ automatically loads DR0 contents into each WCR - restoring the last saved wiper position per pot. However, the datasheet specifies strict ramp requirements: VCC must reach 90% before applying signals to VH/VL/VW pins, with ramp rate between 0.2–50 V/ms and <100mV glitches. Violating these may cause incomplete DR0 recall or undefined wiper states.
Can X9241AMSZ operate with negative voltages on its potentiometer terminals?
Yes, X9241AMSZ supports −3.0V to +5V on all potentiometer terminals (VH/RH, VL/RL, VW/RW), enabling true bipolar analog signal handling. This allows direct use in AC-coupled or dual-supply circuits without external level-shifting components - a key differentiator versus most digital pots limited to 0–VCC operation.
Is cascade mode in X9241AMSZ implemented entirely in hardware or does it require firmware coordination?
Cascade mode is hardware-enabled via the CM bit (bit 7) in each WCR register: setting CM=1 in Pot N links it to Pot N+1. External wiring (VL/RL of higher pot → VH/RH of lower pot) and wiper disable (DW=1) on all but one pot are mandatory. No firmware coordination is needed beyond writing the CM bit and managing connections - the wiper transitions automatically across arrays during increment/decrement commands.
X9241AMSZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 20-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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-SOIC
- Operating Temperature:
- 0°C ~ 70°C
- Resistance - Wiper (Ohms) (Typ):
- 40
X9241AMSZ FAQ
1.How can I place an order for X9241AMSZ through Aetrix?
Please submit a Request for Quotation (RFQ) for X9241AMSZ 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 X9241AMSZ reliable?
The price and inventory of X9241AMSZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9241AMSZ is usually 5 days.
3.What payment methods are accepted for X9241AMSZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9241AMSZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9241AMSZ?
X9241AMSZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9241AMSZ 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 X9241AMSZ?
For technical support, including X9241AMSZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9241AMSZ requirements.
6.How does Aetrix verify that X9241AMSZ is sourced from the original manufacturer or authorized distributors?
All X9241AMSZ 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 X9241AMSZ meets industry standards.
7.What is the process for return or replacement of X9241AMSZ?
All X9241AMSZ units undergo pre-shipment inspection (PSI). If there is an issue with X9241AMSZ, 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 X9241AMSZ part is unused and in its original packaging.
Return procedure for X9241AMSZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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