My Inquiry
My Account
Renesas X9241AUP
- Part No.:
- X9241AUP
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 20-DIP (0.300", 7.62mm)
- Datasheet:
-
X9241AUP.pdf
- Description:
- IC DGTL POT 50KOHM 64TAP 20DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,313
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
X9241AUP from Intersil is a quad nonvolatile digital potentiometer IC implementing four independent 64-tap resistor arrays (2kΩ, 10kΩ, or 50kΩ), each with volatile wiper counter register (WCR) and four nonvolatile data registers (DR0–DR3), operating from 5V ±10% supply, used for precision analog gain/offset trimming in industrial sensor signal conditioning circuits.
For engineers reviewing the X9241AUP datasheet, X9241AUP pinout, X9241AUP application, or X9241AUP equivalent, this page delivers verified electrical specs, 20-pin PDIP package mapping, cascade-mode operation details, I²C-compatible 2-wire interface timing, and real-world design implications of 100-year data retention and 100,000-cycle endurance.
Technical Context
The X9241AUP integrates four monolithic CMOS resistor arrays-each with 63 discrete segments and 64 tap points-controlled via a bidirectional 2-wire (I²C-compatible) serial interface using SCL/SDA, A0–A3 address inputs, and slave address format 0101xxxx. Each array supports independent wiper positioning through direct WCR write, DR-to-WCR transfer, or increment/decrement command.
It implements cascading capability across adjacent arrays by setting the CM bit in the WCR, enabling combined resistance values from 4kΩ to 200kΩ; wiper disable (DW bit) allows terminal isolation, and power-up automatically loads DR0 into each WCR. Nonvolatile writes require up to 10ms with ACK polling support.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resistor Array Value | 50kΩ per potentiometer (Pot 0–3), confirmed for X9241AUPZ ordering variant |
| Resolution | 64 taps (6-bit wiper position), enabling 1.56% step resolution per array |
| VCC Supply Range | 5V ±10% (4.5V to 5.5V), with 200µA standby current and 3mA active current |
| Interface Protocol | I²C-compatible 2-wire bus (SCL/SDA), 100kHz max clock frequency, open-drain SDA |
| Data Retention | 100 years for nonvolatile registers (DR0–DR3), validated per JEDEC JESD22-A117 |
| Endurance | 100,000 data changes per bit per register, supporting long-term field calibration cycles |
| Terminal Voltage Range | −3.0V to +5V on VH/RH, VL/RL, VW/RW pins; ΔV ≤ 10V across any array |
| Wiper Current Limit | ±3mA max (for 10kΩ/50kΩ arrays), derated over temperature per datasheet curve |
Pinout & Package
Package: 20-lead plastic DIP (PDIP), RoHS-compliant, through-hole mountable; Pb-free finish compatible with wave solder only (not reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 (A0–A3) | Slave Address Input | Set LSBs of 8-bit I²C slave address (0101xxxx); determines device selectability on shared bus |
| 5 (SDA) | Serial Data I/O | Bidirectional open-drain bus line; requires external pull-up; carries command/data/ACK |
| 6 (SCL) | Serial Clock Input | Master-generated clock; defines timing for data sampling and ACK generation |
| 7–10, 13–16 (VH0–VH3, VL0–VL3) | Potentiometer Terminal Inputs | Fixed end terminals of each 50kΩ resistor array; VH = high-side, VL = low-side |
| 11–12, 17–18 (VW0–VW3) | Wiper Outputs | Analog output nodes controlled by WCR; electrically isolated when DW bit = 1 |
| 19 (VSS) | Ground Reference | Primary circuit return; all analog/digital logic referenced to this node |
| 20 (VCC) | Supply Voltage | +5V ±10% power rail; must ramp ≥0.2 V/ms and reach 90% before applying analog signals |
Key Features
| Feature | Design Value |
|---|---|
| Quad Independent Arrays | Four 50kΩ, 64-tap resistor networks share one 2-wire interface-reduces board space vs. discrete pots |
| Nonvolatile Register Set | Four 8-bit DRs per pot (16 bytes total NV memory) retain trim settings across power cycles without backup power |
| Cascade Mode Support | CM bit enables inter-array linking (e.g., Pot2→Pot3) to synthesize 100kΩ or 200kΩ values with single-wiper control |
| Wiper Disable Function | DW bit disconnects wiper terminal electrically-prevents loading during idle periods or fault conditions |
| Increment/Decrement Command | Real-time fine-tuning via SCL pulses (HIGH = up, LOW = down) without host CPU intervention or new commands |
| Power-Up Auto-Recall | Each WCR loads DR0 at power-on-ensures known startup state without host initialization sequence |
Applications
| Industrial Sensor Calibration | Programmable Gain Amplifier Trim |
|---|---|
|
Use Scenario: Calibrating zero-offset and span in 4–20mA pressure transmitters under factory test conditions. IC Role / Device Role / Timing Role: X9241AUP acts as four independent precision voltage dividers, adjusting reference voltages fed to op-amp feedback networks. Use Value: Enables one-time factory calibration stored in nonvolatile registers-eliminates manual potentiometers and prevents drift-induced recalibration in field deployment. |
Use Scenario: Dynamically scaling analog outputs from microcontrollers driving analog input stages in PLC I/O modules. IC Role / Device Role / Timing Role: X9241AUP serves as digitally adjustable feedback resistors in inverting amplifier configurations, set via I²C during system boot. Use Value: Supports multiple gain ranges (e.g., ×1, ×10, ×100) using same hardware; avoids relay-based switching and associated wear-out. |
| Audio Channel Balance Control | DC Power Supply Margining |
|
Use Scenario: Implementing channel-matched volume/balance adjustment in professional audio mixing consoles with remote control. IC Role / Device Role / Timing Role: X9241AUP functions as dual 50kΩ variable resistors in attenuator networks for left/right audio paths, synchronized via global transfer commands. Use Value: Provides monotonic, glitch-free attenuation steps (1.56% resolution) with simultaneous update-critical for stereo imaging integrity. |
Use Scenario: Applying precise ±5% voltage margining to 3.3V/5V rails during production burn-in testing of server motherboards. IC Role / Device Role / Timing Role: X9241AUP configures programmable resistive dividers in DC-DC converter feedback loops to inject controlled offset into reference nodes. Use Value: Enables automated, software-controlled stress testing without hardware modification-reducing test fixture complexity and cycle time. |
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 | 10kΩ per channel, I²C interface, 256-tap resolution, 24-lead TSSOP only | Higher resolution but fixed 10kΩ value; no cascade mode or wiper disable | Select when finer adjustment granularity is required and 50kΩ range is not needed |
| MCP42050-I/P | 50kΩ per channel, SPI interface, 256-tap resolution, 14-lead PDIP available | Different serial protocol (SPI vs. I²C); no nonvolatile DR0 auto-recall on power-up | Choose when existing design uses SPI infrastructure and board layout cannot accommodate 20-pin PDIP footprint change |
Compared with AD5242BRUZ10 and MCP42050-I/P, the X9241AUP uniquely combines 50kΩ per channel, I²C compatibility, cascade capability, and power-up DR0 recall in a 20-pin PDIP-making it optimal for legacy industrial systems requiring robust, field-programmable analog trimming with minimal firmware overhead.
Availability
X9241AUP is available at Aetrix Electronics and suitable for industrial sensor calibration, programmable gain amplifier trim, audio channel balance control, and DC power supply margining requiring stable component supply and long-term obsolescence mitigation.
Supply support for X9241AUP 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, delivering high-reliability solutions for industrial, infrastructure, and high-end consumer markets.
The X9241A series was designed specifically for replacing mechanical potentiometers in automated calibration, closed-loop control, and analog signal conditioning systems where nonvolatile storage and multi-channel integration are critical.
FAQ
What is the exact resistor value per potentiometer in the X9241AUP?
The X9241AUP is specified with 50kΩ per potentiometer (Pot 0 through Pot 3), as confirmed in the Ordering Information table for part number X9241AUPZ. This value is fixed for this variant and cannot be changed via configuration. The X9241AUP does not support dynamic resistor value selection-the 50kΩ value is hardwired in silicon and matches the "50" in the part suffix.
Does the X9241AUP support true I²C communication including ACK/NACK handling?
Yes, the X9241AUP implements full I²C protocol compliance: it recognizes standard START/STOP conditions, responds to its 8-bit slave address (0101xxxx), generates ACK after address and command byte receipt, and supports ACK polling during nonvolatile writes. The X9241AUP datasheet explicitly references I²C timing parameters (tLOW, tHIGH, tSU:STA) and acknowledges the I²C bus structure-confirming interoperability with standard I²C masters.
Can the X9241AUP operate from a 3.3V supply?
No, the X9241AUP is rated exclusively for 5V ±10% operation (4.5V to 5.5V). Its absolute maximum ratings specify VCC limits of 5V ±10%, and the recommended operating conditions list only 0°C to +70°C at 5V. Attempting 3.3V operation will result in undefined behavior, failed communications, and potential register corruption-no 3.3V-compatible variant exists in the X9241A family.
How does the X9241AUP handle power-up initialization of wiper positions?
On power-up, the X9241AUP automatically loads the contents of Data Register 0 (DR0) for each potentiometer into its corresponding volatile Wiper Counter Register (WCR). This ensures repeatable startup states without host intervention. The X9241AUP datasheet specifies this behavior unambiguously in the "Power-up Requirements" section and block diagram-DR0 is the sole source of power-on wiper position.
Is the X9241AUP pin-compatible with other variants like X9241AMSZ or X9241AUPIZ?
Yes, all X9241A variants-including X9241AUP, X9241AMSZ, and X9241AUPIZ-share identical 20-pin PDIP, SOIC, and TSSOP footprints and pinouts. The X9241AUPZ and X9241AUPIZ differ only in temperature grade (0°C to +70°C vs. −40°C to +85°C) and resistor value assignment (50kΩ vs. same), not pin function or physical layout. Mechanical and electrical pin compatibility is guaranteed across the family.
X9241AUP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 20-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- 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:
- Through Hole
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 20-PDIP
- Operating Temperature:
- 0°C ~ 70°C
- Resistance - Wiper (Ohms) (Typ):
- 40
X9241AUP FAQ
1.How can I place an order for X9241AUP through Aetrix?
Please submit a Request for Quotation (RFQ) for X9241AUP 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 X9241AUP reliable?
The price and inventory of X9241AUP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9241AUP is usually 5 days.
3.What payment methods are accepted for X9241AUP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9241AUP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9241AUP?
X9241AUP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9241AUP 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 X9241AUP?
For technical support, including X9241AUP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9241AUP requirements.
6.How does Aetrix verify that X9241AUP is sourced from the original manufacturer or authorized distributors?
All X9241AUP 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 X9241AUP meets industry standards.
7.What is the process for return or replacement of X9241AUP?
All X9241AUP units undergo pre-shipment inspection (PSI). If there is an issue with X9241AUP, 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 X9241AUP part is unused and in its original packaging.
Return procedure for X9241AUP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
X9241AUP 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…
