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Renesas X9252UV24IZ-2.7
- Part No.:
- X9252UV24IZ-2.7
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 24-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
X9252UV24IZ-2.7.pdf
- Description:
- IC DGT POT 50KOHM 256TAP 24TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,107
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Product details
Overview
X9252UV24IZ-2.7 from Renesas Electronics is a quad digitally controlled potentiometer (XDCP™) with 256-tap resolution, 2.8 kΩ end-to-end resistance, 2-wire and Up/Down interfaces, and nonvolatile data registers. It operates from 2.7V to 5.5V, features <100 µA standby current, and is used for precision bias voltage trimming in analog front-ends and sensor signal conditioning circuits.
For engineers reviewing the X9252UV24IZ-2.7 datasheet, X9252UV24IZ-2.7 pinout, X9252UV24IZ-2.7 application, or X9252UV24IZ-2.7 equivalent, this page delivers verified electrical specs, interface timing constraints, wiper position recall behavior at power-up, and real-world selection guidance for trim-sensitive analog systems requiring long-term calibration retention.
Technical Context
The X9252UV24IZ-2.7 integrates four independent 255-segment resistor arrays, each with dedicated volatile Wiper Counter Registers (WCRs) and four nonvolatile Data Registers (DRs). Wiper position is controlled via either 2-wire serial bus (I²C-compatible, 400 kHz max) or discrete Up/Down interface with chip select (CS), direction (U/D), and DCP-select pins (DS0/DS1).
At power-up, DR00–DR30 contents load into corresponding WCRs; hardware write protect (WP) disables nonvolatile writes when low. Each DCP supports three-terminal potentiometer or two-terminal variable resistor configurations, with 0.4% resolution, ±1% absolute linearity, and ±300 ppm/°C temperature coefficient across –40°C to +85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-End Resistance | 2.8 kΩ - defines full-scale analog adjustment range and sets maximum power dissipation (50 mW per DCP at +25°C). |
| Resolution | 256 taps (0.4%) - enables fine-grained bias tuning with 3.9 mV step size at 1 V span, critical for ADC reference trimming. |
| VCC Range | 2.7 V to 5.5 V - ensures compatibility with both 3.3 V and 5 V logic/system rails without level-shifting. |
| Standby Current | <100 µA - allows integration into battery-powered sensor nodes where quiescent power must be minimized. |
| Nonvolatile Endurance | 100,000 data changes per bit - supports field recalibration over product lifetime without register wear-out failure. |
| Power-Up Recall Time | 2 ms - guarantees stable wiper position within 2 ms after VCC crosses 2.7 V, enabling deterministic startup behavior. |
| Wiper Resistance | 40 Ω typical - minimizes insertion error in high-impedance feedback paths (e.g., op-amp gain setting networks). |
Pinout & Package
24-lead TSSOP (4.4 mm wide, RoHS-compliant, Pb-free), moisture sensitivity level (MSL) 3 per JEDEC J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RH0–RH3 | High terminal of DCP0–DCP3 | Fixed positive end of each resistor array; connects to supply or reference voltage in potentiometer mode. |
| RL0–RL3 | Low terminal of DCP0–DCP3 | Fixed negative end of each resistor array; connects to ground or signal return in potentiometer mode. |
| RW0–RW3 | Wiper terminal of DCP0–DCP3 | Adjustable tap point; output node for variable voltage division or programmable resistance between RH/RL. |
| SDA / SCL | 2-wire serial data/clock | Open-drain bidirectional bus interface; requires external pull-up; supports up to 400 kHz clock for fast register access. |
| A0–A2 | 2-wire slave address bits | Set LSBs of 7-bit I²C address (0x50–0x57); enables up to 8 devices on same bus without address conflict. |
| CS / U/D / DS0 / DS1 | Up/Down interface control | CS enables discrete increment/decrement; U/D sets direction; DS0/DS1 select one of four DCPs for adjustment. |
| WP | Hardware write protect | Active-low lock for nonvolatile DR writes; prevents accidental calibration overwrite during system operation. |
| VCC / VSS | Supply and ground | Supports 2.7–5.5 V operation; VSS serves as analog and digital reference common for all DCPs. |
Key Features
| Feature | Design Value |
|---|---|
| Quad 256-tap DCPs on single die | Reduces board space and BOM count vs. four discrete pots; enables matched performance (0.75% DCP-to-DCP resistance matching). |
| Nonvolatile storage with 100-year retention | Preserves factory or field calibration across power cycles and shelf life; eliminates need for external EEPROM or MCU backup. |
| Dual-interface support (2-wire + Up/Down) | Allows flexible system integration: 2-wire for centralized MCU control; discrete U/D for manual trim or simple microcontrollerless adjustment. |
| Power-on recall from DR00–DR30 | Guarantees known initial state without software initialization; critical for fail-safe analog subsystems like medical sensor biasing. |
| Wiper current rating of ±3 mA | Supports direct connection to op-amp inputs or comparator references without external buffering in low-current applications. |
Applications
| ADC Reference Trimming | Sensor Bias Voltage Adjustment |
|---|---|
Use Scenario: Calibrating the reference voltage of a 12-bit SAR ADC in an industrial data acquisition module. IC Role / Device Role / Timing Role: X9252UV24IZ-2.7 acts as a programmable voltage divider supplying VREF to the ADC, with wiper position set via 2-wire bus during factory calibration. Use Value: Achieves ±0.5 LSB offset correction across temperature using stored DR values, eliminating manual potentiometer rework. |
Use Scenario: Setting precise bias current for a thermistor-based temperature sensing circuit in HVAC control. IC Role / Device Role / Timing Role: X9252UV24IZ-2.7 configures a two-terminal variable resistor in series with the thermistor to adjust baseline current. Use Value: Enables field recalibration via Up/Down interface without firmware update; wiper position retained through power loss. |
| Op-Amp Gain Programming | Audio Channel Balance Control |
Use Scenario: Dynamically configuring closed-loop gain of instrumentation amplifiers in modular test equipment. IC Role / Device Role / Timing Role: X9252UV24IZ-2.7 replaces mechanical gain-setting resistors in feedback networks of four independent op-amps. Use Value: Provides 256-step gain resolution (0.4%) with matched tracking between channels, reducing inter-channel gain mismatch to <2%. |
Use Scenario: Implementing digital volume/balance control in a multi-channel audio mixer with analog signal path. IC Role / Device Role / Timing Role: X9252UV24IZ-2.7 functions as dual 256-tap potentiometers (DCP0/DCP1) in left/right channel attenuation networks. Use Value: Delivers smooth, glitch-free channel balance adjustment with nonvolatile storage of user presets across power cycles. |
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 256-tap, 10 kΩ, SPI interface only, no Up/Down pins, 500 µA max standby current. | Lacks discrete U/D interface; requires SPI-capable host; higher quiescent current limits battery use. | Select when SPI is preferred and nonvolatile recall timing is less critical than 2 ms. |
| MCP42050-I/SL | Quad 256-tap, 50 kΩ, SPI interface, 1 µA standby current, but no hardware write protect (WP) pin. | No hardware-level DR write lock; relies on software protocol for calibration protection. | Choose for ultra-low-power systems where WP functionality is managed in firmware. |
Compared with AD5204BRUZ10 and MCP42050-I/SL, the X9252UV24IZ-2.7 uniquely combines dual-interface flexibility (2-wire + U/D), hardware write protection, and sub-100 µA standby draw-making it optimal for field-serviceable analog systems requiring robust, low-power, and tamper-resistant calibration.
Availability
X9252UV24IZ-2.7 is available at Aetrix Electronics and suitable for industrial sensor conditioning, precision ADC reference design, op-amp gain programming, and audio channel balancing requiring stable component supply and long-term calibration integrity.
Supply support for X9252UV24IZ-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 is a global semiconductor leader specializing in microcontrollers, analog, and power solutions for industrial, automotive, and infrastructure markets.
The X9252UV24IZ-2.7 belongs to Renesas' XDCP™ (Digitally Controlled Potentiometer) family, designed specifically for replacing mechanical trimmers in high-reliability analog systems where calibration stability, small footprint, and nonvolatile retention are mandatory.
FAQ
What is the default wiper position loaded at power-up for X9252UV24IZ-2.7?
At power-up, X9252UV24IZ-2.7 automatically loads the contents of nonvolatile Data Registers DR00, DR10, DR20, and DR30 into the corresponding volatile Wiper Counter Registers (WCR0–WCR3). This recall completes within 2 ms after VCC exceeds 2.7 V, ensuring deterministic startup without MCU intervention.
Can X9252UV24IZ-2.7 operate with a 3.3 V supply and still meet all specifications?
Yes, X9252UV24IZ-2.7 is fully specified from 2.7 V to 5.5 V. At 3.3 V, all key parameters-including 256-tap resolution, ±3 mA wiper current, <100 µA standby current, and 400 kHz 2-wire interface-remain guaranteed across –40°C to +85°C per the FN8167 Rev 3.1 datasheet.
How does the hardware write protect (WP) pin function on X9252UV24IZ-2.7?
When WP is pulled low, X9252UV24IZ-2.7 disables all nonvolatile writes: both 2-wire "Write to DR" commands and Up/Down "Store" operations are blocked. This prevents accidental overwriting of calibrated values during system operation or debug sessions, while volatile WCR updates remain fully functional.
Is X9252UV24IZ-2.7 pin-compatible with other members of the X9252 family?
Yes, X9252UV24IZ-2.7 shares identical 24-lead TSSOP pinout and register map with X9252YV24IZ-2.7 (2.8 kΩ) and X9252WV24IZ-2.7 (10 kΩ). Only the total end-to-end resistance differs; all interface timing, control logic, and nonvolatile behavior are identical across these variants.
What is the maximum wiper current rating for X9252UV24IZ-2.7, and how does it affect circuit design?
X9252UV24IZ-2.7 supports ±3 mA maximum wiper current. This allows direct connection to op-amp inputs or comparator references without buffering in low-current paths. Exceeding ±3 mA risks wiper contact degradation or increased resistance drift; designers must ensure voltage across RH–RL stays within 50 mW power limit per DCP.
X9252UV24IZ-2.7 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:
- 256
- Resistance (Ohms):
- 50k
- Interface:
- I2C, Up/Down (U/D, CS)
- 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):
- 50
X9252UV24IZ-2.7 FAQ
1.How can I place an order for X9252UV24IZ-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9252UV24IZ-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 X9252UV24IZ-2.7 reliable?
The price and inventory of X9252UV24IZ-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 X9252UV24IZ-2.7 is usually 5 days.
3.What payment methods are accepted for X9252UV24IZ-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9252UV24IZ-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9252UV24IZ-2.7?
X9252UV24IZ-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9252UV24IZ-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 X9252UV24IZ-2.7?
For technical support, including X9252UV24IZ-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9252UV24IZ-2.7 requirements.
6.How does Aetrix verify that X9252UV24IZ-2.7 is sourced from the original manufacturer or authorized distributors?
All X9252UV24IZ-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 X9252UV24IZ-2.7 meets industry standards.
7.What is the process for return or replacement of X9252UV24IZ-2.7?
All X9252UV24IZ-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with X9252UV24IZ-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 X9252UV24IZ-2.7 part is unused and in its original packaging.
Return procedure for X9252UV24IZ-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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