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Renesas X9409WV24Z
- Part No.:
- X9409WV24Z
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 24-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
X9409WV24Z.pdf
- Description:
- IC DGTL POT 10KOHM 64TAP 24TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,768
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Product details
Overview
X9409WV24Z from Intersil is a quad digitally controlled potentiometer (XDCP) IC implementing four independent 64-tap, 10kΩ end-to-end resistor arrays with volatile wiper counter registers and four nonvolatile data registers per channel. It operates from 2.7V to 5.5V, features 50Ω typical wiper resistance at 5V, and uses a standard 2-wire (I²C-compatible) serial interface for wiper position control and register access. It is used in precision analog trimming, programmable gain/offset adjustment, and voltage regulator feedback networks.
For engineers reviewing the X9409WV24Z datasheet, X9409WV24Z pinout, X9409WV24Z application, or X9409WV24Z equivalent, this page delivers verified technical context, exact pin functions, real-world use cases, and confirmed alternative parts - all grounded in the FN8192 Rev.6.00 datasheet and Intersil's official ordering information for X9409WV24Z.
Technical Context
The X9409WV24Z integrates four monolithic CMOS resistor arrays, each composed of 63 discrete segments (64 taps), with CMOS switches selecting wiper position under control of a 6-bit Wiper Counter Register (WCR). Each array supports three-terminal potentiometer or two-terminal variable resistor configurations via VH/RH, VL/RL, and VW/RW terminals.
It implements a slave-only 2-wire interface compliant with I²C timing (400kHz max clock), supporting read/write operations to volatile WCRs and nonvolatile Data Registers (DR0–DR3), with hardware write protection via the WP pin. Power-up automatically loads DR0 into each WCR, enabling deterministic startup behavior without host initialization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-end resistance | 10kΩ ±20% - defines full-scale analog range for voltage division or current limiting in signal conditioning circuits. |
| Resolution | 64 taps (6-bit) - provides 1.56% step resolution for fine-grained analog parameter control. |
| Wiper resistance | 50Ω typical at 5V - ensures minimal insertion error when used as a variable resistor in low-impedance paths. |
| Supply voltage range | 2.7V to 5.5V - enables direct compatibility with 3.3V and 5V logic/system rails without level shifting. |
| Nonvolatile endurance | 100,000 data changes per bit per register - supports long-term field calibration storage with robust update cycles. |
| Data retention | 100 years - guarantees persistent wiper settings across product lifetime without battery backup. |
| Standby current | <3µA - allows integration into always-on or low-power sensor nodes without significant quiescent drain. |
Pinout & Package
Package: 24-lead TSSOP (4.4mm width), RoHS-compliant, Pb-free, moisture sensitivity level per MSL3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (SDA) | Serial Data I/O | Bidirectional open-drain bus line; requires external pull-up; carries address, instruction, and data bytes. |
| 11 (SCL) | Serial Clock Input | Master-generated clock synchronizing all read/write transfers; defines timing for SDA sampling and hold. |
| 14, 2, 23, 12 (A0–A3) | Device Address Inputs | Set LSBs of 8-bit slave address (0101xxxx); enable up to 16 devices on same 2-wire bus. |
| 21, 4, 9, 16, 20, 3, 10, 17 (VH0/RH0–VL3/RL3) | Potentiometer Terminal Pins | Fixed endpoints for each of four resistor arrays; VH/RH = high-side, VL/RL = low-side connections. |
| 22, 5, 8, 15 (VW0/RW0–VW3/RW3) | Wiper Outputs | Analog outputs representing tapped voltage/current position; electrically equivalent to mechanical wiper. |
| 24 (WP) | Hardware Write Protect | Active-low input disabling nonvolatile writes to Data Registers; prevents accidental configuration overwrite. |
| 19 (VCC) | System Supply | 2.7V–5.5V digital/analog supply; powers interface logic and resistor array biasing circuitry. |
| 6 (VSS) | Digital Ground | Reference node for all digital signals and internal logic; must be low-impedance connection to system GND. |
| 7, 13, 18 (NC) | No Connection | Unbonded pins; must remain floating - no routing or PCB connection required. |
Key Features
| Feature | Design Value |
|---|---|
| Four independent XDCPs in one package | Reduces board space and BOM count vs. discrete potentiometers; enables synchronized or independent channel control. |
| Nonvolatile DR0 auto-load on power-up | Ensures repeatable startup state without host firmware intervention - critical for unattended systems. |
| 2-wire interface with ACK polling | Supports reliable nonvolatile write completion detection without fixed delay timing, improving system robustness. |
| Hardware write protection (WP pin) | Prevents unintended register corruption during noise events or software faults - enhances field reliability. |
| Low 50Ω wiper resistance | Minimizes loading error in precision voltage divider or current-sense applications where wiper impedance matters. |
| 100-year data retention | Eliminates need for battery-backed RAM or EEPROM external to the IC for long-term calibration storage. |
Applications
| Audio Signal Level Control | Programmable Voltage Regulator Feedback |
|---|---|
|
Use Scenario: Adjusting gain or volume in analog audio paths within consumer or professional equipment. IC Role / Device Role / Timing Role: Acts as digitally programmable dual-gang potentiometer replacing mechanical controls; four channels support stereo + balance + tone. Use Value: Enables remote or automated calibration, eliminates mechanical wear, and supports factory-trimmed audio response curves. |
Use Scenario: Setting output voltage of adjustable LDOs or switching regulators (e.g., LM317, TLV7xxx) via feedback divider. IC Role / Device Role / Timing Role: Replaces fixed resistors in R1/R2 feedback network; one potentiometer per regulator channel. Use Value: Allows dynamic output voltage scaling, multi-voltage rail sequencing, and post-manufacturing calibration without soldering. |
| Offset & Gain Calibration in Sensor Front-Ends | Programmable Hysteresis in Comparators |
|
Use Scenario: Compensating DC offset and scaling full-scale range of temperature, pressure, or current sensors before ADC digitization. IC Role / Device Role / Timing Role: Configures reference voltage and gain-setting resistors in instrumentation amplifier or op-amp stages. Use Value: Supports one-time or periodic recalibration in field-deployed systems; maintains accuracy over temperature and aging. |
Use Scenario: Setting upper/lower trip thresholds in window comparators or Schmitt triggers for noise-immune digital signal conditioning. IC Role / Device Role / Timing Role: Forms part of resistor divider network defining hysteresis band width and center point. Use Value: Enables adaptive threshold tuning based on environmental conditions or system state without hardware change. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digitally controlled potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5204BRUZ10 | Quad 10kΩ pot, SPI interface, 3.3V/5V supply, 200Ω wiper resistance, no hardware WP pin. | Lacks dedicated write-protect pin; requires SPI host instead of I²C; higher wiper resistance increases insertion error. | Choose when SPI is already dominant in system and WP functionality is managed in firmware. |
| MCP42050-I/SL | Quad 50kΩ pot, SPI interface, 2.7–5.5V, 125Ω wiper resistance, volatile-only registers (no NV storage). | No nonvolatile memory - loses setting on power cycle; requires host re-initialization at boot. | Choose for cost-sensitive, short-cycle applications where persistent settings are unnecessary. |
Compared with X9409WV24Z, AD5204BRUZ10 offers SPI compatibility but sacrifices hardware write protection and adds wiper resistance error, while MCP42050-I/SL eliminates nonvolatile storage entirely - making X9409WV24Z uniquely suited for unattended, field-calibrated analog systems requiring guaranteed power-up state and tamper-resistant configuration.
Availability
X9409WV24Z is available at Aetrix Electronics and suitable for precision analog trimming, programmable power supply feedback, sensor calibration, and industrial control systems requiring stable component supply and long-term configuration persistence.
Supply support for X9409WV24Z 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 (now part of Renesas Electronics) is a semiconductor manufacturer specializing in high-performance analog and mixed-signal ICs for power management, precision analog, and interface applications.
The X9409 product line was designed for digitally programmable analog signal conditioning in industrial, test equipment, and embedded control systems - emphasizing nonvolatile configuration, low-power operation, and robust 2-wire interface compliance.
FAQ
What is the operating voltage range for the X9409WV24Z?
The X9409WV24Z operates from 2.7V to 5.5V, supporting both 3.3V and 5V system rails without external regulation. This range is specified across the full industrial temperature range (−40°C to +85°C) and ensures reliable interface operation and resistor array biasing. The X9409WV24Z datasheet confirms VCC limits are absolute maximum ratings and recommended operating conditions.
Does the X9409WV24Z retain its wiper position after power cycling?
Yes - the X9409WV24Z automatically loads the contents of Data Register 0 (DR0) into each wiper counter register (WCR) on power-up. Since DR0 is nonvolatile and retains data for 100 years, the X9409WV24Z restores a known, user-programmed wiper position without host intervention, ensuring deterministic startup behavior.
How many wiper positions does the X9409WV24Z support per potentiometer?
The X9409WV24Z supports 64 discrete wiper positions per potentiometer, implemented using 63 resistive elements in series with tap points selected by a 6-bit Wiper Counter Register. This yields 1.56% resolution per step and is confirmed in the FN8192 datasheet block diagram, array description, and register tables.
Can the X9409WV24Z be used as a two-terminal variable resistor?
Yes - the X9409WV24Z supports both three-terminal potentiometer (voltage divider) and two-terminal variable resistor (rheostat) configurations. Per the datasheet Applications Information section, connecting VH/RH and VL/RL appropriately (e.g., shorting one terminal to wiper) enables current-controlled applications such as LED brightness or motor speed adjustment.
Is hardware write protection available on the X9409WV24Z?
Yes - the X9409WV24Z includes a dedicated hardware write protect (WP) pin (Pin 24). When pulled low, it disables all nonvolatile writes to the Data Registers, preventing accidental or malicious modification of stored calibration values. This feature is explicitly documented in the Pin Descriptions and Principles of Operation sections of the FN8192 datasheet.
X9409WV24Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 24-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Taper:
- Linear
- Configuration:
- Potentiometer
- Number of Circuits:
- 4
- Number of Taps:
- 64
- Resistance (Ohms):
- 10k
- Interface:
- I2C
- Memory Type:
- Non-Volatile
- Voltage - Supply:
- 5V
- Features:
- Selectable Address
- Tolerance:
- ±20%
- Temperature Coefficient (Typ):
- ±30ppm/°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 24-TSSOP
- Operating Temperature:
- 0°C ~ 70°C
- Resistance - Wiper (Ohms) (Typ):
- 50
X9409WV24Z FAQ
1.How can I place an order for X9409WV24Z through Aetrix?
Please submit a Request for Quotation (RFQ) for X9409WV24Z 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 X9409WV24Z reliable?
The price and inventory of X9409WV24Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9409WV24Z is usually 5 days.
3.What payment methods are accepted for X9409WV24Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9409WV24Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9409WV24Z?
X9409WV24Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9409WV24Z 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 X9409WV24Z?
For technical support, including X9409WV24Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9409WV24Z requirements.
6.How does Aetrix verify that X9409WV24Z is sourced from the original manufacturer or authorized distributors?
All X9409WV24Z 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 X9409WV24Z meets industry standards.
7.What is the process for return or replacement of X9409WV24Z?
All X9409WV24Z units undergo pre-shipment inspection (PSI). If there is an issue with X9409WV24Z, 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 X9409WV24Z part is unused and in its original packaging.
Return procedure for X9409WV24Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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