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Renesas X9259UV24IZ-2.7
- Part No.:
- X9259UV24IZ-2.7
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 24-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
X9259UV24IZ-2.7.pdf
- Description:
- IC DGT POT 50KOHM 256TAP 24TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:223
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Product details
Overview
X9259UV24IZ-2.7 from Renesas (formerly Intersil) is a quad digitally controlled potentiometer (XDCP™) IC with 256-tap resolution, 2-wire serial interface, 50kΩ end-to-end resistance, -40°C to +85°C industrial temperature range, and 2.7V–5.5V single-supply operation. It integrates four independent DCPs for precision analog trimming in feedback loops, sensor conditioning, and voltage regulator setpoints.
For engineers reviewing the X9259UV24IZ-2.7 datasheet, X9259UV24IZ-2.7 pinout, X9259UV24IZ-2.7 application, or X9259UV24IZ-2.7 equivalent, this device supports nonvolatile wiper position storage, hardware write protection, volatile wiper counter registers, and fine-grained increment/decrement control via SCL/SDA - critical for embedded calibration, power management, and audio gain staging.
Technical Context
The X9259UV24IZ-2.7 implements four independent CMOS-switched resistor arrays, each with 256 discrete tap positions controlled by an 8-bit volatile Wiper Counter Register (WCR). Each DCP includes four nonvolatile Data Registers (DR00–DR03 per channel) for persistent storage of up to four wiper states.
It operates as a 2-wire bus slave with configurable 4-bit device address (A3–A0), hardware write-protect (WP), and open-drain SDA/SCL compliant with I²C timing at up to 400kHz. Power-up loads DR#0 into the corresponding WCR, enabling deterministic startup behavior without host intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.7V to 5.5V - enables direct interfacing with 3.3V and 5V microcontrollers without level shifting. |
| RTOTAL | 50kΩ ±20% - standard value for biasing, gain setting, and reference scaling in analog signal paths. |
| Resolution | 256 taps (0.4% step size) - provides 8-bit granularity for precise DC offset correction and gain calibration. |
| Wiper Resistance | 300Ω typical at VCC = 3V - low enough to minimize loading error in high-impedance feedback networks. |
| Standby Current | <5µA max - supports battery-powered systems requiring ultra-low quiescent power during idle periods. |
| Data Retention | 100 years - ensures factory-trimmed calibration values persist over full product lifecycle without refresh. |
| Endurance | 100,000 data changes per bit per register - sufficient for field recalibration cycles in industrial instrumentation. |
| Temp Range | -40°C to +85°C - qualified for industrial-grade operation in automotive ECUs, motor drives, and base station equipment. |
Pinout & Package
Package: 24-lead TSSOP (RoHS-compliant, M24.173 drawing), surface-mount, 0.65mm pitch, 7.8mm × 4.4mm footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A3 | 2-wire device address inputs | Set LSBs of 8-bit slave address (0101xxxx); enable up to 16 devices on same bus without software arbitration. |
| SDA | 2-wire bidirectional data line | Open-drain I/O requiring external pull-up; supports read/write of WCR/DR registers and global transfer commands. |
| SCL | 2-wire clock input | Master-generated clock up to 400kHz; controls timing of all serial transfers including increment/decrement pulses. |
| WP | Hardware write-protect input | Active-low signal blocking nonvolatile writes to Data Registers - prevents accidental corruption during firmware updates. |
| RH0–RH3 | High terminal of DCP0–DCP3 | Analog high-side connection point per potentiometer; referenced to VCC or external supply rail in 3-terminal configuration. |
| RL0–RL3 | Low terminal of DCP0–DCP3 | Analog low-side connection point per potentiometer; tied to VSS or reference ground in 3-terminal configuration. |
| RW0–RW3 | Wiper terminal of DCP0–DCP3 | Variable output node controlled by WCR; delivers programmable voltage division ratio between RHx and RLx. |
| VCC / VSS | Power supply and ground | Single 2.7–5.5V rail powers logic and analog core; no separate analog/digital supplies required. |
Key Features
| Feature | Design Value |
|---|---|
| Quad 256-tap DCPs in one package | Reduces board space vs. four discrete digital pots; eliminates inter-channel mismatch in multi-loop control systems. |
| Four nonvolatile Data Registers per DCP | Enables storage of multiple calibrated states (e.g., min/max/gain/offset) per channel without external EEPROM. |
| Hardware WP pin with active-low logic | Provides fail-safe protection against unintended nonvolatile writes during system boot or reset sequences. |
| Increment/decrement command mode | Allows real-time fine-tuning of wiper position via SCL clock pulses - ideal for closed-loop auto-calibration routines. |
| Power-up load from DR#0 to WCR | Guarantees known initial analog state at startup; eliminates need for host initialization before first use. |
| 2.7V minimum VCC support | Supports direct integration into 3.3V systems with margin; avoids LDO dependency in low-voltage portable designs. |
Applications
| Audio Gain Control | Voltage Regulator Setpoint |
|---|---|
|
Use Scenario: Adjusting volume in headphone amplifiers or line-level outputs in consumer audio SoCs. IC Role / Device Role / Timing Role: Acts as digitally programmable two-terminal variable resistor in op-amp feedback path to set gain without mechanical wear. Use Value: Enables firmware-controlled mute/ramp functions and user-presaved volume levels using nonvolatile DR storage. |
Use Scenario: Setting output voltage of adjustable DC-DC converters in telecom power modules. IC Role / Device Role / Timing Role: Replaces fixed resistor divider between FB and VOUT pins to allow dynamic output reconfiguration. Use Value: Supports remote voltage margining and adaptive load-line compensation via 256-step resolution. |
| Sensor Signal Conditioning | RF Power Amplifier Biasing |
|
Use Scenario: Trimming offset and gain errors in bridge-based pressure or temperature sensor front-ends. IC Role / Device Role / Timing Role: Configured as three-terminal potentiometer to adjust zero-point and scale factor in instrumentation amplifier stages. Use Value: Achieves <±1 LSB absolute linearity for sub-0.1% accuracy across -40°C to +85°C industrial range. |
Use Scenario: Controlling gate bias voltage of GaN or LDMOS RF PAs in wireless infrastructure transceivers. IC Role / Device Role / Timing Role: Provides stable, low-noise DC bias adjustment point with <10µA standby current to minimize thermal drift. Use Value: Enables PA efficiency optimization across temperature and aging via field-updatable DR values stored in nonvolatile memory. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digitally controlled potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5242BRUZ100 | 2-channel, 256-tap, I²C interface, 100kΩ RTOTAL, 2.7–5.5V, but only two DCPs and no hardware WP pin. | Lacks quad-channel integration and write-protect - requires additional components for multi-loop systems. | Select when dual-channel capability suffices and board space allows discrete WP logic implementation. |
| MCP42050-I/SL | Dual 256-tap SPI interface, 50kΩ, 2.7–5.5V, includes shutdown mode, but no nonvolatile DRs - wiper resets on power cycle. | No persistent storage for calibration data - unsuitable for unattended recalibration or field service. | Prefer where SPI is already used in system and volatile-only operation is acceptable for cost-sensitive designs. |
Compared with AD5242BRUZ100 and MCP42050-I/SL, the X9259UV24IZ-2.7 uniquely delivers quad-channel integration, hardware write protection, and four nonvolatile registers per channel - making it optimal for industrial systems requiring robust, self-contained analog trimming without external memory or logic.
Availability
X9259UV24IZ-2.7 is available at Aetrix Electronics and suitable for industrial sensor conditioning, RF power amplifier biasing, and programmable voltage regulator setpoints requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for X9259UV24IZ-2.7 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
Renesas Electronics Corporation acquired Intersil in 2017 and maintains full technical and manufacturing continuity for the XDCP™ family of digitally controlled potentiometers.
The X9259 product line was designed specifically for high-reliability analog trimming in industrial, automotive, and communications equipment where mechanical potentiometers fail due to wear, contamination, or vibration.
FAQ
What is the minimum operating voltage for the X9259UV24IZ-2.7?
The X9259UV24IZ-2.7 supports a guaranteed minimum VCC of 2.7V, with full functionality across 2.7V–5.5V. At 2.7V, wiper resistance is 300Ω typical, and 2-wire communication remains compliant with I²C timing specifications up to 400kHz. This enables direct use in 3.3V systems without voltage translation.
How does the hardware write-protect (WP) pin function on the X9259UV24IZ-2.7?
The WP pin on the X9259UV24IZ-2.7 is an active-low input that disables all nonvolatile writes to the Data Registers when pulled LOW. Volatile WCR updates remain fully operational. This prevents accidental overwrites during firmware updates or brown-out conditions while preserving runtime adjustability of wiper positions.
Can the X9259UV24IZ-2.7 be used as a two-terminal variable resistor?
Yes, the X9259UV24IZ-2.7 supports both three-terminal potentiometer and two-terminal variable resistor configurations. For two-terminal use, connect either RHx or RLx to the wiper RWx, leaving the other terminal unconnected or grounded depending on circuit topology - enabling compact gain control and bias adjustment.
What is the endurance rating of the nonvolatile memory in the X9259UV24IZ-2.7?
The X9259UV24IZ-2.7 guarantees 100,000 data changes per bit per register in its nonvolatile Data Registers. This endurance supports repeated field recalibration in test equipment, factory trim updates, and adaptive tuning algorithms without risk of memory wear-out over typical product lifetimes.
Does the X9259UV24IZ-2.7 require external pull-up resistors on SDA and SCL?
Yes, the X9259UV24IZ-2.7 uses open-drain SDA and SCL pins, requiring external pull-up resistors to VCC. Typical values range from 2.2kΩ to 10kΩ depending on bus capacitance and desired rise time; 4.7kΩ is recommended for standard 400kHz operation with ≤400pF total bus load.
X9259UV24IZ-2.7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 24-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Taper:
- Linear
- Configuration:
- Potentiometer
- Number of Circuits:
- 4
- Number of Taps:
- 256
- Resistance (Ohms):
- 50k
- Interface:
- I2C
- Memory Type:
- Non-Volatile
- Voltage - Supply:
- 2.7V ~ 5.5V
- Features:
- Selectable Address
- Tolerance:
- ±20%
- Temperature Coefficient (Typ):
- ±300ppm/°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 24-TSSOP
- Operating Temperature:
- -40°C ~ 85°C
- Resistance - Wiper (Ohms) (Typ):
- 300 (Max)
X9259UV24IZ-2.7 FAQ
1.How can I place an order for X9259UV24IZ-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9259UV24IZ-2.7 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 X9259UV24IZ-2.7 reliable?
The price and inventory of X9259UV24IZ-2.7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9259UV24IZ-2.7 is usually 5 days.
3.What payment methods are accepted for X9259UV24IZ-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9259UV24IZ-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9259UV24IZ-2.7?
X9259UV24IZ-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9259UV24IZ-2.7 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 X9259UV24IZ-2.7?
For technical support, including X9259UV24IZ-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9259UV24IZ-2.7 requirements.
6.How does Aetrix verify that X9259UV24IZ-2.7 is sourced from the original manufacturer or authorized distributors?
All X9259UV24IZ-2.7 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 X9259UV24IZ-2.7 meets industry standards.
7.What is the process for return or replacement of X9259UV24IZ-2.7?
All X9259UV24IZ-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with X9259UV24IZ-2.7, 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 X9259UV24IZ-2.7 part is unused and in its original packaging.
Return procedure for X9259UV24IZ-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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