My Inquiry
My Account
Renesas X9258US24-2.7T1
- Part No.:
- X9258US24-2.7T1
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 24-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
X9258US24-2.7T1.pdf
- Description:
- IC DGTL POT 50KOHM 256TAP 24SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,101
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
X9258US24-2.7T1 from Intersil is a quad digital potentiometer IC integrating four 256-tap, nonvolatile, low-noise resistor arrays with 2-wire (I²C-compatible) interface, ±2.7V to ±5.5V dual analog supplies, and 50kΩ end-to-end resistance per pot - used for precision gain/offset trimming in industrial sensor signal conditioning circuits.
For engineers reviewing the X9258US24-2.7T1 datasheet, X9258US24-2.7T1 pinout, X9258US24-2.7T1 application, or X9258US24-2.7T1 equivalent, key selection criteria include wiper resistance at 2.7V operation, nonvolatile register endurance (100k cycles), 2-wire addressability up to 16 devices, and SOIC-24 package compatibility with legacy DCP layouts.
Technical Context
The X9258US24-2.7T1 implements four independent 255-segment resistor arrays with CMOS switch-controlled wipers, each driven by an 8-bit volatile Wiper Counter Register (WCR) and backed by four 8-bit nonvolatile Data Registers (DR0–DR3). Power-up loads DR0 into each WCR, enabling deterministic startup behavior.
Its 2-wire interface supports standard I²C timing (400kHz max), hardware write protection via WP pin, and increment/decrement mode for real-time fine-tuning. The device operates with separate VCC (2.7V–5.5V), V+ (+2.7V to +5.5V), and V− (−2.7V to −5.5V) rails - enabling true bipolar analog signal control without level-shifting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-end resistance | 50kΩ per potentiometer - sets full-scale voltage division range and load matching in op-amp feedback networks. |
| Resolution | 256 taps (0.4% step resolution) - enables 8-bit granularity for calibration accuracy better than ±0.5% of full scale. |
| Voltage supply range | VCC = 2.7V to 5.5V; V+ = +2.7V to +5.5V; V− = −2.7V to −5.5V - supports single-supply microcontroller control with bipolar analog signal handling. |
| Wiper resistance | 40Ω typical at V+ = 5V, V− = −5V - contributes <0.1% error in 50kΩ applications; rises to ~250Ω at ±3V, requiring layout derating below 3V. |
| Nonvolatile endurance | 100,000 data changes per bit per register - ensures >10 years of daily recalibration in field-deployed instrumentation. |
| Standby current | <5µA total package - enables always-on calibration storage in battery-backed systems without measurable drain. |
| Interface | 2-wire (I²C-compatible) with A0–A3 address pins - allows daisy-chaining up to 16 devices on one bus, reducing GPIO count in multi-channel systems. |
Pinout & Package
Package: 24-lead SOIC (300 mil), RoHS-compliant, Pb-free (e3 termination), MSL Level 3 per JEDEC J-STD-020.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1, 24 | NC / VSS | No connection (Pin 1); system ground reference (Pin 24) - decoupling capacitor must connect directly to Pin 24 for noise immunity. |
| 2–5 | A0–A3 | Device address inputs - configure 4-bit slave address; tied high/low or driven by MCU GPIO to enable multi-device bus addressing. |
| 6, 7 | SCL / SDA | I²C clock and bidirectional data - require external pull-up resistors (1.8kΩ typical for 400kHz, 5V bus); open-drain compatible. |
| 8, 9 | V+ / V− | Analog supply rails - define wiper voltage swing range; must be stable before issuing any wiper commands (tPUR = 1ms). |
| 10, 11 | VCC / VSS | Digital supply and ground - powers interface logic; VSS (Pin 11) is primary ground return for all digital signals. |
| 12–15, 17–20 | VH0/RH0–VH3/RH3, VL0/RL0–VL3/RL3 | Potentiometer terminal pairs - VH/VL pins connect to analog signal endpoints; RH/RL denote high/low resistance terminals per array. |
| 16, 21–23 | VW0/RW0–VW3/RW3, WP | Wiper outputs and hardware write protect - VWx deliver adjustable voltage/current; WP low disables nonvolatile writes to DR registers. |
Key Features
| Feature | Design Value |
|---|---|
| Four independent 256-tap DCPs | Enables simultaneous gain, offset, threshold, and filter tuning in 4-channel sensor front-ends without discrete component proliferation. |
| Nonvolatile DR0–DR3 per pot | Preserves calibrated settings across power cycles - eliminates need for host MCU to reprogram on boot, reducing firmware complexity. |
| Hardware WP pin | Prevents accidental overwriting of factory-trimmed or field-calibrated values during system operation or firmware updates. |
| Increment/decrement command mode | Allows real-time wiper adjustment via SCL clock edges only - no command byte overhead, ideal for manual calibration via encoder or button. |
| Bipolar analog supply support | Accepts ±2.7V to ±5.5V rails - supports true AC-coupled signal paths and rail-to-rail op-amp configurations without external level shifters. |
Applications
| Industrial Sensor Calibration | Programmable Gain Amplifier |
|---|---|
|
Use Scenario: Calibrating zero-offset and span in 4-channel RTD or strain gauge measurement modules deployed in factory automation. IC Role / Device Role / Timing Role: Quad DCP provides independent trim for each channel's instrumentation amplifier input stage and output buffer. Use Value: Eliminates manual potentiometers and reduces calibration time by >70% via automated script-driven register writes over I²C. |
Use Scenario: Configuring variable closed-loop gain in a 4-channel programmable gain instrumentation amplifier (PGIA) for mixed-signal data acquisition. IC Role / Device Role / Timing Role: Each potentiometer sets feedback resistance in op-amp gain stages, with DR0 storing factory-set default gains. Use Value: Enables dynamic gain switching under MCU control while retaining last-used setting after power loss - critical for adaptive sampling. |
| Audio Channel Balance Control | Bipolar DC Bias Adjustment |
|
Use Scenario: Implementing software-controlled left/right channel volume and balance in professional audio mixing consoles with analog signal paths. IC Role / Device Role / Timing Role: Two pots act as dual-gang attenuators in line-level signal paths; remaining two adjust channel-specific DC offsets. Use Value: Achieves matched attenuation (±0.6% relative linearity) and silent click-free transitions via increment/decrement mode. |
Use Scenario: Adjusting symmetric DC bias points for differential ADC drivers in high-precision data converters operating with ±5V analog supplies. IC Role / Device Role / Timing Role: One potentiometer sets positive bias (VH0/VL0), another sets negative bias (VH1/VL1), referenced to V+ and V− rails. Use Value: Maintains ratiometric temperature coefficient (<20 ppm/°C) across bias network - ensures drift-compensated common-mode voltage stability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad digital potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5242BRUZ100 | 100kΩ end-to-end resistance; I²C interface; no dual-supply analog rails (VDD only); wiper resistance 45Ω typical. | Requires external level-shifting for bipolar signal control; lacks V+/V− dedicated analog supplies. | Choose when only unipolar analog ranges are needed and higher resistance tolerance (±30%) is acceptable. |
| MCP42050-I/SL | 50kΩ end-to-end; SPI interface; single 2.7–5.5V supply; wiper resistance 120Ω typical; no hardware WP pin. | Needs SPI-capable MCU; no native support for bipolar analog operation; relies on software write protection. | Choose for cost-sensitive, SPI-based designs where bipolar supply independence is not required. |
Compared with AD5242BRUZ100 and MCP42050-I/SL, the X9258US24-2.7T1 uniquely delivers true bipolar analog control via dedicated V+/V− rails, hardware write protection, and guaranteed 256-tap resolution - making it the only option for precision, field-reliable calibration in ±5V sensor signal chains.
Availability
X9258US24-2.7T1 is available at Aetrix Electronics and suitable for industrial sensor calibration, programmable gain amplifiers, audio channel balancing, and bipolar DC bias adjustment requiring stable component supply and long-term calibration retention.
Supply support for X9258US24-2.7T1 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 company specializing in precision analog, power management, and interface ICs for industrial, aerospace, and communications systems.
The X9258 product line was designed for high-reliability, nonvolatile digital trimming in harsh-environment instrumentation - emphasizing long-term data retention (100 years), bipolar signal compatibility, and robust ESD tolerance.
FAQ
What is the minimum operating voltage for the X9258US24-2.7T1 analog supplies?
The X9258US24-2.7T1 supports V+ from +2.7V to +5.5V and V− from −2.7V to −5.5V. Operation at ±2.7V is fully specified - including wiper resistance (250Ω typical), resolution (0.6%), and nonvolatile write timing (10ms max). Below ±2.7V, functionality is not guaranteed per datasheet limits.
How does the hardware write protect (WP) pin function on the X9258US24-2.7T1?
When the WP pin is pulled low, the X9258US24-2.7T1 blocks all nonvolatile writes to its Data Registers (DR0–DR3). This prevents accidental overwrites during firmware updates or system resets. Volatile WCR writes remain enabled, allowing runtime wiper adjustments without affecting stored calibration values.
Can the X9258US24-2.7T1 be used as a 2-terminal variable resistor?
Yes, the X9258US24-2.7T1 supports both three-terminal potentiometer and two-terminal variable resistor configurations. To use as a variable resistor, connect either VH/RH or VL/RL to VW/RW and leave the other terminal unconnected - enabling adjustable resistance from 0Ω to 50kΩ per channel with 256-step control.
What is the power-up behavior of the X9258US24-2.7T1 wiper positions?
On power-up, the X9258US24-2.7T1 automatically loads the contents of Data Register 0 (DR0) for each potentiometer into its corresponding volatile Wiper Counter Register (WCR). This ensures repeatable, pre-stored wiper positions without host intervention - critical for fail-safe startup in sensor systems.
Does the X9258US24-2.7T1 support standard I²C addressing and timing?
Yes, the X9258US24-2.7T1 complies with standard I²C protocol: 7-bit slave address (0101xxxB prefix + A0–A3 bits), 400kHz max clock frequency, and full timing compliance (tHIGH ≥600ns, tLOW ≥1300ns). It responds to START/STOP conditions and issues ACK after address and command bytes - interoperable with standard I²C masters.
X9258US24-2.7T1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 24-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- 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:
- ±2.7V ~ 5.5V
- Features:
- Selectable Address
- Tolerance:
- ±20%
- Temperature Coefficient (Typ):
- ±300ppm/°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 24-SOIC
- Operating Temperature:
- 0°C ~ 70°C
- Resistance - Wiper (Ohms) (Typ):
- 150
X9258US24-2.7T1 FAQ
1.How can I place an order for X9258US24-2.7T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9258US24-2.7T1 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 X9258US24-2.7T1 reliable?
The price and inventory of X9258US24-2.7T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9258US24-2.7T1 is usually 5 days.
3.What payment methods are accepted for X9258US24-2.7T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9258US24-2.7T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9258US24-2.7T1?
X9258US24-2.7T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9258US24-2.7T1 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 X9258US24-2.7T1?
For technical support, including X9258US24-2.7T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9258US24-2.7T1 requirements.
6.How does Aetrix verify that X9258US24-2.7T1 is sourced from the original manufacturer or authorized distributors?
All X9258US24-2.7T1 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 X9258US24-2.7T1 meets industry standards.
7.What is the process for return or replacement of X9258US24-2.7T1?
All X9258US24-2.7T1 units undergo pre-shipment inspection (PSI). If there is an issue with X9258US24-2.7T1, 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 X9258US24-2.7T1 part is unused and in its original packaging.
Return procedure for X9258US24-2.7T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
X9258US24-2.7T1 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…
