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Renesas X9241AYP
- Part No.:
- X9241AYP
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 20-DIP (0.300", 7.62mm)
- Datasheet:
-
X9241AYP.pdf
- Description:
- IC DGTL POT 2KOHM 64TAP 20DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,245
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Product details
Overview
X9241AYP from Intersil is a quad digital controlled potentiometer (XDCP™) IC with nonvolatile storage, 2-wire I²C interface, 64-tap resolution per channel, 2kΩ end-to-end resistance per pot, and 0°C to +70°C operating range in 20-lead PDIP package. It functions as four independent digitally adjustable resistors for precision analog control in embedded calibration and sensor signal conditioning.
For engineers reviewing the X9241AYP datasheet, X9241AYP pinout, X9241AYP application, or X9241AYP equivalent, this page delivers verified technical context, confirmed pin functions, real-world use cases, and validated alternative options - all grounded in Intersil FN8164 Rev 7.00 documentation and ordering data.
Technical Context
The X9241AYP integrates four monolithic 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 2-wire serial commands including Read/Write WCR, Data Register transfer, and Increment/Decrement modes.
Each pot supports terminal voltages from –3.0V to +5V, wiper current up to ±4mA (for 2kΩ arrays), and cascade mode enabling combined resistance values up to 200kΩ. Power-up automatically loads DR0 into the WCR, ensuring repeatable startup behavior without host intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Number of pots | Four independent digitally controlled potentiometers on single die |
| End-to-end resistance | 2kΩ per potentiometer - sets full-scale analog adjustment range and load compatibility |
| Resolution | 64 taps (6-bit) - enables 1.56% step granularity across full resistance range |
| Interface | 2-wire I²C-compatible bus (SCL/SDA) with 100kHz max clock - simplifies microcontroller integration with minimal GPIO usage |
| Nonvolatile memory | 16 bytes (4 registers × 4 pots) - retains wiper positions and user settings across power cycles for zero-config restart |
| Operating temperature | 0°C to +70°C - qualified for commercial-grade embedded systems and industrial control panels |
| Package | 20-lead plastic DIP (PDIP) - through-hole mounting compatible with wave soldering and manual prototyping |
Pinout & Package
20-lead plastic dual in-line package (PDIP), RoHS-compliant, designed for through-hole wave solder processing only (not reflow-compatible).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 | VH0/RH0 to VL3/RL3, VW0/RW0 to VW3/RW3 | Fixed terminals (VH/VL) and wiper outputs (VW) for four independent potentiometers - directly replace mechanical trimmers in analog signal paths |
| 11 | VSS | Ground reference for analog and digital circuitry - must be low-impedance return path for stable wiper operation |
| 12 | VCC | +5V ±10% supply - powers internal logic, resistor arrays, and interface; ramp rate ≥0.2 V/ms required for reliable power-up recall |
| 13, 14, 15, 16 | A0–A3 | Slave address inputs - configure least-significant 4 bits of I²C address (0101xxxx binary prefix fixed) |
| 17 | SDA | Bidirectional open-drain I²C data line - requires external pull-up; supports ACK polling during nonvolatile writes |
| 18 | SCL | I²C clock input - controls timing of all serial transfers; glitch filter rejects noise pulses <20ns |
| 19, 20 | NC | No connect - internally unconnected; must remain floating or tied to VSS per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Quad potentiometer integration | Reduces board space and BOM count vs. four discrete digital pots - eliminates inter-channel mismatch in gain/offset trimming |
| Register-oriented command set | Enables direct read/write of wiper position (WCR) and nonvolatile storage (DR0–DR3) - supports factory calibration and field updates |
| Cascade mode support | Allows linking adjacent resistor arrays externally to achieve 4kΩ–200kΩ total resistance - extends design flexibility without external components |
| Wiper disable function | DW bit in WCR isolates wiper terminal electrically - prevents loading during standby or unused channel states |
| Endurance & retention | 100,000 write cycles per register bit and 100-year data retention - suitable for long-lifecycle industrial equipment |
Applications
| Audio Signal Level Control | Laser Diode Bias Calibration |
|---|---|
|
Use Scenario: Adjusting gain and offset in analog audio preamplifier stages for consumer AV receivers. IC Role / Device Role / Timing Role: Four-channel digital potentiometer providing programmable attenuation and DC bias setting for op-amp feedback networks. Use Value: Enables remote firmware-controlled volume leveling and channel balancing without mechanical trimpots or manual recalibration. |
Use Scenario: Calibrating laser diode driver current in optical transceivers during manufacturing test. IC Role / Device Role / Timing Role: Precision 2kΩ resistance element setting reference voltage for current-sense amplifier in closed-loop bias control. Use Value: Stores calibrated trim values in nonvolatile DR0, eliminating post-assembly manual adjustment and supporting automated test flow. |
| Industrial Sensor Signal Conditioning | Medical Instrument Offset Nulling |
|
Use Scenario: Compensating for thermal drift and manufacturing tolerance in RTD or thermocouple front-end amplifiers. IC Role / Device Role / Timing Role: Dual-pot configuration (e.g., Pot 0 + Pot 1) implementing programmable gain and offset correction in instrumentation amplifier topology. Use Value: Allows one-time factory calibration stored in DR0, then automatic recall at power-on - ensures consistent measurement accuracy across units. |
Use Scenario: Nulling amplifier input offset voltage in portable ECG or EEG signal acquisition circuits. IC Role / Device Role / Timing Role: High-stability 2kΩ potentiometer used in op-amp offset null network with low leakage (<1µA) and low noise (≤120dBV). Use Value: Delivers sub-millivolt nulling precision with 64-step resolution and guaranteed 100-year retention - critical for diagnostic-grade signal fidelity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| X9241AYSIZ | Same quad 2kΩ architecture, but in 20-lead SOIC package with –40°C to +85°C rating | Required for extended temperature environments or surface-mount assembly | Select when industrial temperature range or SMT production is mandatory; pinout differs (SOIC vs. PDIP) |
| MCP42050-I/P | Single 50kΩ digital pot with SPI interface, 2.7–5.5V supply, and 10-bit resolution | Lacks quad integration, nonvolatile storage per channel, and cascade capability | Choose for cost-sensitive single-channel designs where SPI is preferred and higher resolution justifies trade-off in channel count |
Compared with X9241AYP, X9241AYSIZ offers identical functionality in an industrial-temperature SOIC package, while MCP42050-I/P provides higher resolution and SPI compatibility at the expense of channel count, nonvolatile register depth, and cascade support - making X9241AYP optimal for multi-channel, field-calibratable, through-hole embedded systems.
Availability
X9241AYP is available at Aetrix Electronics and suitable for industrial sensor calibration, medical instrument offset trimming, and audio signal level control requiring stable component supply and long-term obsolescence management.
Supply support for X9241AYP 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 high-reliability mixed-signal solutions for industrial and infrastructure markets.
The X9241A family was designed specifically for digitally programmable analog trimming in embedded systems requiring nonvolatile storage, multi-channel integration, and robust I²C control - targeting calibration-critical applications in test equipment and medical devices.
FAQ
What is the exact resistance value and tolerance for each potentiometer in X9241AYP?
The X9241AYP specifies 2kΩ end-to-end resistance per potentiometer with ±20% tolerance (RTOTAL limits per datasheet Table on Page 10). This value is fixed per device variant and confirmed in the Ordering Information table for X9241AYPZ - no user-programmable resistance scaling is supported; only wiper position is adjustable.
Does X9241AYP support I²C standard-mode or fast-mode timing?
X9241AYP supports I²C standard-mode operation only, with maximum SCL clock frequency of 100kHz (tLOW ≥4700ns, tHIGH ≥4000ns per AC specs on Page 12). It does not meet fast-mode (400kHz) timing requirements and must be configured accordingly in host controller software.
How does power-up wiper recall work in X9241AYP?
On power-up, X9241AYP automatically loads the contents of Data Register 0 (DR0) for each potentiometer into its corresponding volatile Wiper Counter Register (WCR). This ensures deterministic wiper position at startup without host initialization - provided DR0 was previously written and retained.
Can X9241AYP be used in cascade mode with all four potentiometers?
Yes, X9241AYP supports cascading all four resistor arrays by setting the Cascade Mode (CM) bit in the WCR of Pots 0–2, connecting VL/RL of higher-order pot to VH/RH of lower-order pot, and disabling all but one wiper. This yields a combined 252-segment (4×63) array with total resistance up to 8kΩ (4×2kΩ).
What is the maximum allowable wiper current for X9241AYP at 25°C?
At 25°C, the maximum wiper current for X9241AYP is ±4mA per potentiometer (per Absolute Maximum Ratings on Page 10), applicable only to the 2kΩ variant. Exceeding this limit risks irreversible damage to internal FET switches and must be enforced via external current limiting or voltage compliance design.
X9241AYP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 20-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Taper:
- Linear
- Configuration:
- Potentiometer
- Number of Circuits:
- 4
- Number of Taps:
- 64
- Resistance (Ohms):
- 2k
- 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
X9241AYP FAQ
1.How can I place an order for X9241AYP through Aetrix?
Please submit a Request for Quotation (RFQ) for X9241AYP 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 X9241AYP reliable?
The price and inventory of X9241AYP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9241AYP is usually 5 days.
3.What payment methods are accepted for X9241AYP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9241AYP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9241AYP?
X9241AYP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9241AYP 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 X9241AYP?
For technical support, including X9241AYP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9241AYP requirements.
6.How does Aetrix verify that X9241AYP is sourced from the original manufacturer or authorized distributors?
All X9241AYP 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 X9241AYP meets industry standards.
7.What is the process for return or replacement of X9241AYP?
All X9241AYP units undergo pre-shipment inspection (PSI). If there is an issue with X9241AYP, 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 X9241AYP part is unused and in its original packaging.
Return procedure for X9241AYP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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