My Inquiry
My Account
Renesas X9241AUSI
- Part No.:
- X9241AUSI
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
X9241AUSI.pdf
- Description:
- IC DGTL POT 50KOHM 64TAP 20SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,207
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
X9241AUSI 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 -40°C to +85°C industrial temperature rating. It functions as four independent digitally adjustable resistors in a single SOIC-20 package for precision analog trimming in embedded control systems.
For engineers reviewing the X9241AUSI datasheet, X9241AUSI pinout, X9241AUSI application, or X9241AUSI equivalent, this page delivers verified specifications, validated pin functions, confirmed cascade-mode operation, real-world use cases in sensor calibration and power supply feedback, and two technically documented alternative parts with explicit differences in resistance values and temperature grade.
Technical Context
The X9241AUSI implements four independent 63-element resistor arrays, each controlled by a 6-bit volatile Wiper Counter Register (WCR) and backed by four nonvolatile Data Registers (DR0–DR3). Each array supports three end-to-end resistance options: 2kΩ, 10kΩ, or 50kΩ - with X9241AUSI specifically configured as Pot 0 = 50kΩ, Pot 1 = 50kΩ, Pot 2 = 50kΩ, Pot 3 = 50kΩ per ordering table.
It uses a standard 2-wire I²C-compatible serial interface with slave address formed by fixed 0101b type identifier and user-configurable A0–A3 pins. The device supports global and per-pot register transfers, increment/decrement wiper control, and cascading of adjacent arrays via CM bit in WCR, enabling extended resistance ranges up to 200kΩ.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resistance per pot | 50kΩ (confirmed for all four pots in X9241AUSI variant) |
| Resolution | 64 taps (1.56% step size; enables fine-grained analog adjustment) |
| Interface | 2-wire I²C-compatible (SCL/SDA; supports standard 100kHz clock) |
| Nonvolatile memory | 16 bytes (four 4-byte DRs; 100-year data retention, 100k write cycles) |
| Terminal voltage range | -3.0V to +5V (supports bipolar signal conditioning and single-supply designs) |
| Operating temperature | -40°C to +85°C (industrial-grade qualification per ordering table) |
| Package | 20-lead SOIC (RoHS-compliant, Pb-free matte tin finish) |
Pinout & Package
20-lead SOIC package (RoHS-compliant, Pb-free matte tin plating), pin-compatible with PDIP and TSSOP variants. Pin numbering follows standard SOIC top-view convention with Pin 1 at bottom-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Positive supply | +5V ±10% main power rail; powers internal logic and resistor arrays |
| VSS | Ground reference | System ground return for analog and digital circuitry |
| SCL | Serial clock input | Master-generated I²C clock; controls timing of all data transfers |
| SDA | Serial data bidirectional | Open-drain I²C bus line; requires external pull-up; carries commands and data |
| A0–A3 | Slave address inputs | Set LSBs of 8-bit I²C slave address (0101xxxxb); enable multi-device bus configuration |
| VH0/RH0 – VH3/RH3 | High-side pot terminals | Fixed high-voltage ends of resistor arrays; connect to VCC or signal source |
| VL0/RL0 – VL3/RL3 | Low-side pot terminals | Fixed low-voltage ends; connect to VSS or signal sink |
| VW0/RW0 – VW3/RW3 | Wiper outputs | Analog output nodes; position determined by WCR; electrically isolatable via DW bit |
Key Features
| Feature | Design Value |
|---|---|
| Quad independent potentiometers | Four fully isolated 50kΩ resistor arrays on one die - reduces board space vs. discrete solutions |
| Cascadable resistor arrays | CM bit enables linking of adjacent pots (e.g., Pot2→Pot3) to form 100kΩ or 200kΩ total resistance |
| Nonvolatile wiper recall | Power-up automatically loads DR0 into WCR - ensures repeatable startup settings without host intervention |
| Wiper disable function | DW bit (bit 6 of WCR) floats wiper terminal - eliminates leakage path during standby or fault conditions |
| Increment/decrement mode | Real-time wiper stepping via SCL pulses (HIGH = up, LOW = down) - enables fine-tuning without full register writes |
Applications
| LED Brightness Control | Sensor Calibration |
|---|---|
|
Use Scenario: Adjusting current-limiting resistance in constant-current LED driver feedback loop. IC Role / Device Role / Timing Role: Four-channel digital potentiometer providing programmable gain and offset correction across multiple LED strings. Use Value: Enables factory and field calibration of luminance uniformity without hardware changes; 50kΩ range matches typical op-amp feedback networks. |
Use Scenario: Compensating offset and span errors in analog-output pressure or temperature sensors. IC Role / Device Role / Timing Role: Precision trim element in sensor signal conditioning circuit; stores calibrated values in nonvolatile registers. Use Value: Eliminates manual trimpots; retains calibration across power cycles; 64-tap resolution supports <±0.5% full-scale error correction. |
| Programmable Power Supply | Audio Channel Balancing |
|
Use Scenario: Setting output voltage and current limit thresholds in digitally controlled DC-DC converter feedback paths. IC Role / Device Role / Timing Role: Digitally reconfigurable resistor network in voltage divider and current-sense amplifier circuits. Use Value: Supports remote reprogramming of supply parameters; 50kΩ value avoids loading high-impedance error amplifier inputs. |
Use Scenario: Matching left/right channel gain in stereo audio amplifiers or codec interfaces. IC Role / Device Role / Timing Role: Dual-channel volume/balance control using two independent pots; third/fourth used for mute or tone control. Use Value: Achieves <0.1dB channel matching via 64-step granularity; nonvolatile storage preserves user preferences after power loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| X9241AWSIZ | Same 20-lead SOIC package, -40°C to +85°C rating, but configured as four 10kΩ pots (not 50kΩ) | Lower resistance better suited for higher-current bias networks or lower-impedance op-amp stages | Select when circuit requires ≤10kΩ end-to-end resistance and tighter wiper current margins (±3mA vs. ±3mA at 10kΩ) |
| X9241AYSIZ | Same package and temp grade, but configured as four 2kΩ pots; lower RTOTAL increases max wiper current to ±4mA | Optimized for low-voltage, high-bandwidth analog paths where 2kΩ minimizes RC time constants | Choose for fast-response applications like active filter tuning or RF bias control where 2kΩ improves settling time |
Compared with X9241AUSI, X9241AWSIZ offers lower resistance for higher-current analog nodes, while X9241AYSIZ provides faster response and higher wiper current capability - both retain identical interface, nonvolatile architecture, and cascade functionality but differ in fundamental resistance scaling.
Availability
X9241AUSI is available at Aetrix Electronics and suitable for industrial sensor calibration, programmable power supplies, LED lighting control, and audio channel balancing requiring stable component supply across long production lifecycles.
Supply support for X9241AUSI 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 digitally programmable analog components.
The X9241A family was designed for embedded systems requiring reliable, nonvolatile analog trimming - targeting industrial automation, test equipment, and programmable power applications where mechanical potentiometers fail under vibration or environmental stress.
FAQ
What is the exact end-to-end resistance value for each potentiometer in the X9241AUSI?
The X9241AUSI is specified with 50kΩ end-to-end resistance for all four potentiometers (Pot 0 through Pot 3), as confirmed in the Ordering Information table on page 2 of FN8164 Rev 7.00. This value is fixed per device variant and not user-selectable; tolerance is ±10% at VCC = 5V.
Does the X9241AUSI support cascading of resistor arrays, and how is it enabled?
Yes, the X9241AUSI supports cascading via the Cascade Mode (CM) bit in the Wiper Counter Register. When CM = 1 in WCR2, Pot 2 cascades to Pot 3; similarly, CM = 1 in WCR0 links Pot 0 to Pot 1. External wiring must connect VLx/RLx of one pot to VH(y)/RHy of the next, and only one wiper remains enabled.
What is the maximum allowable wiper current for the X9241AUSI at 50kΩ resistance?
For 50kΩ total resistance, the maximum wiper current is ±3mA per potentiometer, as specified in Absolute Maximum Ratings on page 10 of FN8164 Rev 7.00. This limit applies across the full -40°C to +85°C operating range and assumes no simultaneous overvoltage on terminal pins.
How does power-up behavior work in the X9241AUSI, and which register is loaded into the wiper?
On power-up, the X9241AUSI automatically loads the contents of Data Register 0 (DR0) for each potentiometer into its corresponding volatile Wiper Counter Register (WCR). This ensures repeatable startup positions without host initialization - a key feature confirmed in the Principles of Operation section (page 3).
Is the X9241AUSI RoHS-compliant, and what is its lead finish?
Yes, the X9241AUSI is RoHS-compliant and features 100% matte tin plate with anneal (e3 termination finish), as stated in the Ordering Information footnote on page 2 of FN8164 Rev 7.00. This finish supports both SnPb and Pb-free soldering processes and meets IPC/JEDEC J-STD-020 reflow requirements.
X9241AUSI 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):
- 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:
- -40°C ~ 85°C
- Resistance - Wiper (Ohms) (Typ):
- 40
X9241AUSI FAQ
1.How can I place an order for X9241AUSI through Aetrix?
Please submit a Request for Quotation (RFQ) for X9241AUSI 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 X9241AUSI reliable?
The price and inventory of X9241AUSI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9241AUSI is usually 5 days.
3.What payment methods are accepted for X9241AUSI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9241AUSI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9241AUSI?
X9241AUSI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9241AUSI 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 X9241AUSI?
For technical support, including X9241AUSI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9241AUSI requirements.
6.How does Aetrix verify that X9241AUSI is sourced from the original manufacturer or authorized distributors?
All X9241AUSI 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 X9241AUSI meets industry standards.
7.What is the process for return or replacement of X9241AUSI?
All X9241AUSI units undergo pre-shipment inspection (PSI). If there is an issue with X9241AUSI, 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 X9241AUSI part is unused and in its original packaging.
Return procedure for X9241AUSI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
X9241AUSI Tags
-
MCP4018T-103E/LT
Microchip Technology
-
MCP4018T-503E/LT
Microchip Technology
-
MCP4011T-103E/SN
Microchip Technology
-
MCP4018T-104E/LT
Microchip Technology
-
MCP4017T-503E/LT
Microchip Technology
-
MCP4018T-502E/LT
Microchip Technology
-
MCP4017T-103E/LT
Microchip Technology
-
MCP4531T-103E/MF
Microchip Technology
-
MCP4021T-202E/SN
Microchip Technology
-
MCP4023T-103E/CH
Microchip Technology
-
MCP4022T-503E/CH
Microchip Technology
-
MCP4551T-502E/MS
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
