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Renesas X9241AMSZT1
- Part No.:
- X9241AMSZT1
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
X9241AMSZT1.pdf
- Description:
- IC DGT POT 2/10/10/50KOHM 20SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,691
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Product details
Overview
X9241AMSZT1 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 2kΩ/10kΩ/50kΩ selectable resistor arrays - used for precision analog trimming in programmable power supplies, sensor calibration circuits, and audio level control systems.
For engineers reviewing the X9241AMSZT1 datasheet, X9241AMSZT1 pinout, X9241AMSZT1 application, or X9241AMSZT1 equivalent, this page delivers verified specifications, validated SOIC-20 package mapping, confirmed cascade-mode operation, real-world wiper response timing (tSTPWV = 500 µs), and two documented alternative parts with functional trade-offs.
Technical Context
The X9241AMSZT1 integrates four independent CMOS resistor arrays (63 segments each), each with a volatile 6-bit Wiper Counter Register (WCR) and four nonvolatile Data Registers (DR0–DR3). Wiper position is controlled via I²C commands including Write WCR, Read WCR, and Increment/Decrement mode with SCL-synchronized stepping.
It supports cascade configuration (e.g., Pot2→Pot3) using the CM bit in the WCR, enabling extended resistance ranges up to 200kΩ. Power-up automatically loads DR0 into each WCR, and nonvolatile writes require ≤10 ms with ACK polling support.
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 (6-bit WCR), ±1 MI absolute linearity error |
| Resistance Values | Factory-configured as Pot0=2kΩ, Pot1=10kΩ, Pot2=10kΩ, Pot3=50kΩ (SOIC-20 variant) |
| Terminal Voltage Range | +5V, –3.0V referenced to VSS - supports bipolar analog signal conditioning |
| Nonvolatile Endurance | 100,000 data changes per bit per register; 100-year data retention at +25°C |
| Supply Current | 3 mA active (fSCL=100 kHz), 200–500 µA standby - suitable for low-power embedded systems |
| Wiper Response Time | tSTPWV = 500 µs after STOP condition - enables rapid reconfiguration in closed-loop tuning |
Pinout & Package
Package: 20-lead SOIC (RoHS-compliant, Pb-free matte tin finish), body dimensions 7.50 mm × 12.80 mm × 2.35 mm (JEDEC MS-013).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 | A0–A3 | LSB address inputs; configure 4-bit slave address (0101xxxx binary prefix) |
| 5 | SDA | Bidirectional I²C data line; open-drain output requiring external pull-up |
| 6 | SCL | I²C clock input; controls timing of all serial transfers and increment/decrement steps |
| 7–10, 13–16 | VH0/RH0 to VH3/RH3, VL0/RL0 to VL3/RL3 | Fixed resistor array terminals (high/low ends); define potentiometer voltage range per channel |
| 11–12, 17–18 | VW0/RW0 to VW3/RW3 | Wiper outputs; electrically isolated when DW bit = 1; voltage follows WCR position |
| 19 | VSS | Ground reference for analog and digital circuitry; must be connected before VCC during power-up |
| 20 | VCC | +5V ±10% supply; ramp rate 0.2–50 V/ms; powers internal logic and resistor arrays |
Key Features
| Feature | Design Value |
|---|---|
| Quad integrated potentiometers | Four independent 64-tap arrays in single SOIC-20 package - reduces board space vs discrete solutions |
| Nonvolatile register storage | Four 8-bit Data Registers per pot (16 bytes total) retain wiper settings across power cycles |
| Cascade mode support | CM bit enables inter-pot linking (e.g., Pot2→Pot3) for 4kΩ–200kΩ composite resistance values |
| Increment/Decrement command | Real-time wiper adjustment via SCL pulses (HIGH = step toward VH, LOW = step toward VL) |
| Low leakage performance | <1 µA RH/RL/RW leakage at VTERM - preserves accuracy in high-impedance sensor interfaces |
Applications
| Programmable Power Supply Trim | Sensor Offset Calibration |
|---|---|
Use Scenario: Adjusting feedback divider ratio in DC-DC converter error amplifiers to maintain precise output voltage under load variation. IC Role / Device Role / Timing Role: Four-channel digital potentiometer providing stable, nonvolatile resistance settings for voltage reference and current sense scaling. Use Value: Eliminates manual trimmer replacement; enables factory calibration storage and field firmware updates to compensation values. |
Use Scenario: Nulling thermal drift in bridge-based pressure or temperature sensors by injecting offset correction at amplifier input stage. IC Role / Device Role / Timing Role: Precision analog trim device with ±3.0V terminal rating supporting bipolar sensor signal paths. Use Value: Achieves <±1 mV offset correction over –40°C to +85°C using stored DR0 recall on power-up. |
| Audio Channel Balance Control | Industrial DAC Output Scaling |
Use Scenario: Dynamically adjusting left/right channel gain in professional audio mixers using microcontroller-driven volume leveling algorithms. IC Role / Device Role / Timing Role: Quad potentiometer acting as digitally addressed variable resistor in op-amp gain-setting networks. Use Value: 64-step resolution provides <0.5 dB step size at 10kΩ; cascade mode enables matched dual-channel 20kΩ configurations. |
Use Scenario: Scaling full-scale output of 12-bit DACs to match varying actuator input ranges (e.g., 0–5 V, 0–10 V, ±5 V) in PLC analog output modules. IC Role / Device Role / Timing Role: Programmable gain element placed between DAC output and buffer amplifier. Use Value: Nonvolatile DR storage allows per-unit calibration coefficients to persist across maintenance cycles and firmware upgrades. |
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 256-tap I²C pot; 10kΩ end-to-end; no cascade mode; 500 kΩ wiper resistance | Higher resolution but lower analog bandwidth; lacks multi-array coordination features | Preferred when fine-grained adjustment outweighs need for multi-channel synchronization |
| MCP42010-I/P | Dual 256-tap SPI interface; 10kΩ; volatile-only memory; 125 ppm/°C tempco | No nonvolatile storage; requires external EEPROM for power-loss recovery | Selected for cost-sensitive designs where host MCU handles calibration persistence |
Compared with X9241AMSZT1, AD5242BRUZ10 offers higher resolution but lacks quad integration and cascade capability, while MCP42010-I/P trades nonvolatility and I²C simplicity for SPI dependency and no DR0 auto-recall - making X9241AMSZT1 optimal for self-contained, multi-channel analog trimming with guaranteed power-up state restoration.
Availability
X9241AMSZT1 is available at Aetrix Electronics and suitable for programmable power supplies, sensor calibration systems, audio equipment, and industrial DAC scaling applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for X9241AMSZT1 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) designs precision analog and power management ICs for industrial, infrastructure, and high-end consumer markets.
The X9241A family was engineered to replace mechanical potentiometers in automated calibration systems, offering nonvolatile storage, I²C configurability, and quad-channel integration for space-constrained analog front-ends.
FAQ
What is the default resistor value configuration for X9241AMSZT1?
The X9241AMSZT1 is factory-configured with Pot0 = 2kΩ, Pot1 = 10kΩ, Pot2 = 10kΩ, and Pot3 = 50kΩ. This specific combination is fixed for the SOIC-20 package variant and cannot be altered post-manufacture. Each potentiometer retains its designated resistance value regardless of cascade mode activation or register programming.
Does X9241AMSZT1 support true bipolar operation with negative voltages?
Yes, X9241AMSZT1 supports terminal voltages from –3.0V to +5V relative to VSS, enabling true bipolar analog signal handling. The VH/RH, VL/RL, and VW/RW pins tolerate –3.0V, allowing use in circuits with split supplies or AC-coupled signals - provided VSS remains the most negative rail and all voltages stay within absolute maximum ratings.
How does the cascade mode function in X9241AMSZT1?
In X9241AMSZT1, cascade mode is enabled by setting the CM bit (bit 7) of a potentiometer's WCR to '1', linking its VL/RL to the VH/RH of the next higher-order pot (e.g., Pot2→Pot3). Only one wiper remains active (DW = 0), and wiper movement automatically transitions across arrays. External wiring must connect cascaded terminals, and global WCR-to-DR transfers preserve position across power cycles.
What is the minimum time required to complete a nonvolatile write to DR0 in X9241AMSZT1?
A nonvolatile write to any Data Register in X9241AMSZT1 requires up to 10 ms (tWR), as specified in the datasheet. During this period, the device does not acknowledge I²C commands. ACK polling - issuing START + slave address - confirms completion: absence of ACK indicates ongoing write; presence of ACK means the register update is complete and safe for subsequent access.
Can X9241AMSZT1 operate reliably at –40°C?
Yes, X9241AMSZT1 is rated for industrial temperature range (–40°C to +85°C) in SOIC-20 variants marked X9241AMSIZT1. However, the specific part number X9241AMSZT1 is specified for 0°C to +70°C operation per the ordering table. For –40°C applications, X9241AMSIZT1 must be selected - it shares identical functionality but undergoes extended temperature screening and qualification.
X9241AMSZT1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 20-SOIC (0.295", 7.50mm 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):
- 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
X9241AMSZT1 FAQ
1.How can I place an order for X9241AMSZT1 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9241AMSZT1 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 X9241AMSZT1 reliable?
The price and inventory of X9241AMSZT1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9241AMSZT1 is usually 5 days.
3.What payment methods are accepted for X9241AMSZT1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9241AMSZT1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9241AMSZT1?
X9241AMSZT1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9241AMSZT1 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 X9241AMSZT1?
For technical support, including X9241AMSZT1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9241AMSZT1 requirements.
6.How does Aetrix verify that X9241AMSZT1 is sourced from the original manufacturer or authorized distributors?
All X9241AMSZT1 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 X9241AMSZT1 meets industry standards.
7.What is the process for return or replacement of X9241AMSZT1?
All X9241AMSZT1 units undergo pre-shipment inspection (PSI). If there is an issue with X9241AMSZT1, 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 X9241AMSZT1 part is unused and in its original packaging.
Return procedure for X9241AMSZT1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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