My Inquiry
My Account
Renesas X9259UV24I
- Part No.:
- X9259UV24I
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 24-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
X9259UV24I.pdf
- Description:
- IC DGT POT 50KOHM 256TAP 24TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,159
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
X9259UV24I from Renesas (formerly Intersil) is a quad digitally controlled potentiometer (XDCP™) IC implementing four independent 256-tap, 50kΩ end-to-end resistance potentiometers with volatile wiper counter registers and nonvolatile data registers. It operates from 2.7V to 5.5V, features 2-wire serial interface, <5µA standby current, and is packaged in 24-lead TSSOP for industrial temperature range (–40°C to +85°C). It replaces mechanical potentiometers in precision analog trimming applications.
For engineers reviewing the X9259UV24I datasheet, X9259UV24I pinout, X9259UV24I application, or X9259UV24I equivalent, this page delivers verified technical context, exact pin functions, real-world use cases, and validated alternative parts - all grounded in the FN8169 Rev 6.00 datasheet and Renesas product documentation.
Technical Context
The X9259UV24I integrates four monolithic CMOS digitally controlled potentiometers, each with 256 discrete resistor taps and a programmable wiper position controlled via 2-wire bus. Each DCP includes one volatile 8-bit Wiper Counter Register (WCR) and four nonvolatile 8-bit Data Registers (DR00–DR33), enabling persistent storage of up to four wiper positions per channel.
It supports full bidirectional 2-wire communication (SDA/SCL) with device address pins A0–A3, hardware write protection (WP), and global or per-channel register transfer instructions. Power-up loads DR#0 into the corresponding WCR, ensuring repeatable startup behavior without external initialization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Number of DCPs | Four independent digitally controlled potentiometers on single die |
| End-to-End Resistance | 50kΩ ±20% - defines full-scale analog adjustment range per channel |
| Resolution | 256 taps (0.4% step resolution) - enables fine-grained analog tuning |
| VCC Range | 2.7V to 5.5V - supports single-supply operation across legacy and low-voltage systems |
| Standby Current | <5µA max - enables battery-powered or always-on analog calibration circuits |
| Data Retention | 100 years - ensures long-term storage of calibrated settings without refresh |
| Endurance | 100,000 data changes per bit per register - supports frequent recalibration in field-deployed equipment |
Pinout & Package
Package: 24-lead TSSOP (RoHS-compliant, M24.173 drawing), industrial temperature grade (–40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A3 | 2-wire slave address inputs | Set LSBs of 8-bit I²C address; enable up to 16 devices on same bus |
| SDA | 2-wire bidirectional data line | Open-drain I/O requiring external pull-up; carries commands, addresses, and data |
| SCL | 2-wire serial clock input | Master-generated clock synchronizing all read/write/transfer operations |
| WP | Hardware write protect | Active-low signal blocking nonvolatile writes to Data Registers during operation |
| RH0–RH3 | High terminals of DCP0–DCP3 | Analog high-side connections; define upper voltage reference for each potentiometer |
| RL0–RL3 | Low terminals of DCP0–DCP3 | Analog low-side connections; define lower voltage reference or ground return path |
| RW0–RW3 | Wiper terminals of DCP0–DCP3 | Programmable tap outputs; deliver adjustable voltage/resistance between RH and RL |
| VCC / VSS | Power supply and ground | Single 2.7–5.5V supply; no separate analog/digital rails required |
| DNC / NC | No-connect pins | Reserved for manufacturing/test; must remain unconnected in PCB layout |
Key Features
| Feature | Design Value |
|---|---|
| Quad 256-tap DCPs | Enables simultaneous trimming of four analog parameters (e.g., gain, offset, bias, reference) in compact space |
| Nonvolatile Data Registers | Four 8-bit registers per DCP store calibrated wiper positions; survive power cycles without firmware reload |
| 2-wire serial interface | Reduces MCU GPIO count and PCB routing complexity vs. SPI or parallel control; compatible with standard I²C masters |
| Wiper resistance | 220Ω typical at VCC = 5V - minimizes loading error when used as variable resistor in high-impedance feedback paths |
| Global transfer instructions | Single command updates all four WCRs from matching DRs - simplifies synchronized multi-channel calibration |
Applications
| Audio Volume Control | DC Bias Adjustment in RF Power Amplifiers |
|---|---|
|
Use Scenario: Adjusting gain in stereo audio preamplifier stages using dual-channel signal paths. IC Role / Device Role / Timing Role: X9259UV24I acts as two independent 50kΩ digital potentiometers (DCP0 & DCP1) in voltage-divider configuration to set attenuation level. Use Value: Eliminates manual trimpots and mechanical wear; enables remote volume control via microcontroller over 2-wire bus. |
Use Scenario: Setting optimal DC quiescent current (IQ) for GaAs FET-based RF power amplifiers in wireless base stations. IC Role / Device Role / Timing Role: X9259UV24I serves as precision 50kΩ programmable load resistor (DCP2) in amplifier bias network. Use Value: Enables factory calibration and field recalibration of bias point without hardware change; maintains stability across temperature (-40°C to +85°C). |
| Offset Trim in Precision Instrumentation | Reference Voltage Scaling for ADCs |
|
Use Scenario: Nulling input offset voltage in low-noise instrumentation amplifiers used in medical sensor front-ends. IC Role / Device Role / Timing Role: X9259UV24I implements a 50kΩ 3-terminal potentiometer (DCP3) in op-amp offset null circuit. Use Value: Achieves sub-mV offset correction with 0.4% resolution; nonvolatile storage retains calibration after power loss. |
Use Scenario: Generating programmable reference voltages (e.g., 1.25V–2.5V) for SAR ADCs in industrial data acquisition modules. IC Role / Device Role / Timing Role: X9259UV24I functions as 2-terminal variable resistor (DCP0) in resistive divider with stable voltage source. Use Value: Provides 256-step reference scaling with ratiometric tempco of ±20 ppm/°C - critical for measurement accuracy over temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digitally controlled potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5242BRUZ10 | Dual 256-tap, 10kΩ DCP; I²C interface; 24-TSSOP; –40°C to +105°C | Lower total resistance (10kΩ vs. 50kΩ); higher max operating temperature | Select when lower resistance and extended temperature range are prioritized over matching X9259UV24I's 50kΩ value and register architecture. |
| MCP42050-I/SL | Dual 256-tap, 50kΩ DCP; SPI interface; 14-SOIC; –40°C to +85°C | Half the channel count (2 vs. 4); SPI instead of 2-wire; different pinout and register map | Choose when system already uses SPI peripherals and only two channels are needed; requires PCB and firmware redesign. |
Compared with AD5242BRUZ10 and MCP42050-I/SL, the X9259UV24I uniquely delivers four 50kΩ DCPs in a single 24-pin TSSOP with nonvolatile data register support and 2-wire compatibility - making it optimal for space-constrained, multi-parameter trimming where pin count and bus simplicity matter.
Availability
X9259UV24I is available at Aetrix Electronics and suitable for industrial sensor calibration, RF power amplifier biasing, and precision instrumentation requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for X9259UV24I 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 acquired Intersil in 2017 and continues to support its precision analog portfolio, including digitally controlled potentiometers. Renesas is a global semiconductor leader focused on embedded solutions and analog power management.
The X9259UV24I belongs to Renesas' XDCP™ (Digitally Controlled Potentiometer) family, designed specifically for replacing mechanical trimmers in high-reliability industrial, communications, and test equipment where programmable analog adjustment and nonvolatile calibration storage are essential.
FAQ
What is the operating voltage range for the X9259UV24I?
The X9259UV24I operates from 2.7V to 5.5V, as specified in the "Recommended Operating Conditions" section of the FN8169 datasheet. This wide supply range allows compatibility with both 3.3V and 5V systems, and the "-2.7" suffix in the part number explicitly denotes this low-voltage capability. The device maintains full functionality-including 256-tap resolution and nonvolatile register access-across the entire range.
How many independent potentiometers does the X9259UV24I integrate?
The X9259UV24I integrates four completely independent digitally controlled potentiometers (DCP0–DCP3), each with its own RH, RL, and RW terminals, plus dedicated volatile Wiper Counter Registers and four nonvolatile Data Registers. This quad architecture enables concurrent analog parameter adjustment-such as gain, offset, bias, and reference-in a single 24-pin package, reducing board area versus discrete solutions.
Does the X9259UV24I retain wiper settings after power cycling?
Yes - the X9259UV24I automatically loads the contents of each DCP's DR#0 register into its corresponding volatile Wiper Counter Register (WCR) at power-up. Since DR#0 is nonvolatile and retains data for 100 years, the last stored calibration value persists across power cycles without host intervention. This behavior is guaranteed by the internal power-up sequence described in the "Principles of Operation" section of the datasheet.
What is the function of the WP pin on the X9259UV24I?
The WP (Write Protect) pin on the X9259UV24I is an active-low hardware control that disables all nonvolatile writes to the Data Registers when pulled LOW. While volatile WCR updates remain functional, this prevents accidental or unauthorized changes to stored calibration values. The WP pin has no effect on read operations or volatile register writes, making it ideal for safeguarding factory-set parameters in deployed systems.
Can the X9259UV24I be used as a two-terminal variable resistor?
Yes - the X9259UV24I supports both three-terminal potentiometer and two-terminal variable resistor configurations. When used as a variable resistor, either RH or RL is connected to the wiper (RW), effectively creating a digitally adjustable resistance between the remaining terminal and RW. The datasheet confirms this usage in "Circuit Level Applications", including Wheatstone bridge trimming and pin diode attenuator control.
X9259UV24I 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
- Memory Type:
- Non-Volatile
- Voltage - Supply:
- 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):
- 220 (Max)
X9259UV24I FAQ
1.How can I place an order for X9259UV24I through Aetrix?
Please submit a Request for Quotation (RFQ) for X9259UV24I 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 X9259UV24I reliable?
The price and inventory of X9259UV24I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9259UV24I is usually 5 days.
3.What payment methods are accepted for X9259UV24I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9259UV24I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9259UV24I?
X9259UV24I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9259UV24I 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 X9259UV24I?
For technical support, including X9259UV24I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9259UV24I requirements.
6.How does Aetrix verify that X9259UV24I is sourced from the original manufacturer or authorized distributors?
All X9259UV24I 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 X9259UV24I meets industry standards.
7.What is the process for return or replacement of X9259UV24I?
All X9259UV24I units undergo pre-shipment inspection (PSI). If there is an issue with X9259UV24I, 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 X9259UV24I part is unused and in its original packaging.
Return procedure for X9259UV24I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
X9259UV24I 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…
