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Renesas X9315WS-2.7
- Part No.:
- X9315WS-2.7
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
X9315WS-2.7.pdf
- Description:
- IC DGTL POT 10KOHM 32TAP 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,955
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Product details
Overview
X9315WS-2.7 from Intersil is a digitally controlled potentiometer (XDCP™) implementing a 31-element resistor array with 32 wiper tap points, nonvolatile wiper position storage, and 3-wire serial interface (CS/U/D/INC). It operates from 2.7V to 5.5V, delivers 10kΩ end-to-end resistance with ±20% tolerance, and supports 0°C to +70°C commercial temperature range in 8-lead SOIC package - used for precision analog trimming in power supply feedback loops, sensor calibration, and audio level control.
For engineers reviewing the X9315WS-2.7 datasheet, X9315WS-2.7 pinout, X9315WS-2.7 application, or X9315WS-2.7 equivalent, this page provides verified technical context, confirmed pin functions, real-world use scenarios, and two validated alternative parts with documented functional and application differences.
Technical Context
The X9315WS-2.7 integrates a 5-bit up/down counter, nonvolatile EEPROM memory for wiper position retention, and a resistor array with make-before-break wiper switching. Its control logic responds to negative-edge-triggered INC pulses while U/D sets direction, and CS enables selection or initiates nonvolatile store on rising edge with INC HIGH.
It features temperature-compensated resistive elements (±300 ppm/°C RTOTAL drift), ratiometric stability (±20 ppm/°C), and low-noise operation (–120 dBV @ 1 kHz). Wiper resistance is 400–1000 Ω at 2.7V, and active supply current is limited to 80 µA max during increment operations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-end resistance | 10 kΩ ±20% - defines full-scale analog adjustment range and load interaction in voltage divider configurations |
| Supply voltage range | 2.7 V to 5.5 V - enables direct compatibility with 3.3 V and 5 V systems without level-shifting |
| Wiper positions | 32 discrete taps - provides 3.125% resolution per step for fine-grained analog parameter control |
| Nonvolatile store time | 5–10 ms - determines minimum system delay required to commit wiper setting across power cycles |
| Active supply current | 80 µA max - ensures ultra-low power consumption during dynamic adjustment in battery-powered devices |
| Standby current | 5 µA max - supports long-term retention in always-on embedded monitoring circuits |
| Operating temperature | 0°C to +70°C - qualifies for commercial-grade instrumentation and consumer electronics applications |
Pinout & Package
Package: 8-lead narrow-body SOIC (M8.15E), RoHS-compliant, body dimensions 4.90 mm × 3.90 mm × 1.75 mm max.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Positive supply input | Must be ≥ VH, VL, VW; powers internal logic and resistor array; supports 2.7–5.5 V operation |
| VSS | Ground reference | Return path for all internal circuitry and external analog signals; must be connected before applying voltages to RH/VH or RL/VL |
| RH/VH | High terminal | Fixed end of resistor array; voltage range 0 V to VCC; serves as upper rail in voltage divider or high-side connection in variable resistor mode |
| RL/VL | Low terminal | Fixed end of resistor array; voltage range 0 V to VCC; serves as lower rail in voltage divider or low-side connection in variable resistor mode |
| RW/VW | Wiper output | Movable tap point; series resistance 400–1000 Ω at 2.7 V; connects to one of 32 positions based on counter state |
| CS | Chip select | Active-low enable; rising edge with INC HIGH triggers nonvolatile store; LOW enables U/D and INC response |
| U/D | Direction control | Logic level sets wiper movement direction (HIGH = increment, LOW = decrement) during next INC pulse |
| INC | Increment clock | Negative-edge-triggered; advances wiper position when CS is LOW; timing requires tCYC ≥ 4 µs and tIL/tIH ≥ 1 µs |
Key Features
| Feature | Design Value |
|---|---|
| Solid-state potentiometer architecture | Eliminates mechanical wear, contact bounce, and environmental sensitivity - enables >100,000 wiper adjustments with 100-year data retention |
| 3-wire serial interface | Requires only CS, U/D, and INC signals - simplifies microcontroller GPIO usage without SPI/I²C peripherals or address decoding logic |
| Nonvolatile wiper position storage | Recalls last-set tap on power-up - ensures consistent startup behavior in unattended systems like power supplies and sensor transmitters |
| Temperature-compensated resistor array | ±300 ppm/°C RTOTAL drift and ±20 ppm/°C ratiometric stability - maintains gain/offset accuracy across ambient temperature shifts |
| Make-before-break wiper switching | Prevents open-circuit transients during tap transitions - avoids signal dropout or glitching in sensitive analog signal paths |
Applications
| Power Supply Feedback Trimming | Audio Volume Control |
|---|---|
|
Use Scenario: Adjusting output voltage of adjustable DC-DC converters or linear regulators via resistor divider feedback network. IC Role / Device Role / Timing Role: Two-terminal variable resistor replacing manual trimmer; sets precise voltage division ratio between RH/VH and RL/VL terminals. Use Value: Enables factory-programmed or field-adjustable output voltage without hardware changes; retains setting across power cycles. |
Use Scenario: Implementing digital volume control in headphone amplifiers or line-level audio stages. IC Role / Device Role / Timing Role: Three-terminal potentiometer configured as voltage divider; RW/VW delivers attenuated signal between RH/VH (input) and RL/VL (ground). Use Value: Provides monotonic, low-noise attenuation (–120 dBV noise floor) with no mechanical scratch or pop artifacts during adjustment. |
| Sensor Offset Calibration | Industrial DAC Output Scaling |
|
Use Scenario: Compensating zero-point drift in bridge-based pressure or temperature sensors. IC Role / Device Role / Timing Role: Two-terminal variable resistor in offset nulling network; adjusts bias current or voltage applied to sensor excitation or amplifier input. Use Value: Delivers stable, repeatable calibration over temperature (±20 ppm/°C ratiometric coefficient) and lifetime (100-year memory retention). |
Use Scenario: Scaling full-scale output of 8- to 12-bit DACs to match downstream ADC input ranges or actuator drive requirements. IC Role / Device Role / Timing Role: Three-terminal potentiometer acting as programmable gain stage; RW/VW feeds scaled reference into op-amp non-inverting input. Use Value: Enables software-defined full-scale adjustment without recalibrating DAC firmware or changing external passive components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digitally controlled potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5243BRMZ10 | 2-channel I²C interface, 10 kΩ, ±30% RTOTAL tolerance, 128-tap resolution, 2.7–5.5 V supply | Supports dual independent pots; higher resolution but looser resistance tolerance; requires I²C master instead of simple GPIO | Select when multi-channel trimming or finer resolution is needed and I²C infrastructure exists |
| MCP41010-I/P | Single-channel SPI interface, 10 kΩ, ±20% RTOTAL, 257-tap resolution, 2.7–5.5 V supply, volatile wiper register only | No nonvolatile storage - wiper resets to mid-scale on power-up; requires host MCU to reinitialize | Select when lowest cost and SPI compatibility are priorities, and persistent settings are managed externally |
Compared with AD5243BRMZ10 and MCP41010-I/P, the X9315WS-2.7 offers guaranteed nonvolatile recall without host intervention, minimal GPIO footprint (3 wires), and tighter ratiometric stability - making it optimal for self-contained, maintenance-free analog calibration in commercial-grade equipment.
Availability
X9315WS-2.7 is available at Aetrix Electronics and suitable for power supply feedback trimming, audio volume control, sensor offset calibration, and industrial DAC output scaling requiring stable component supply and guaranteed long-term parametric consistency.
Supply support for X9315WS-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
Intersil Corporation (now part of Renesas Electronics) designs high-performance analog and mixed-signal ICs for power management, precision analog, and interface applications.
The X9315WS-2.7 belongs to the XDCP™ family of digitally controlled potentiometers engineered for reliable, solid-state replacement of mechanical trimmers in analog signal conditioning and calibration circuits.
FAQ
What is the supply voltage range for the X9315WS-2.7?
The X9315WS-2.7 operates from 2.7 V to 5.5 V, supporting both 3.3 V and 5 V logic systems without external regulation. This range is explicitly specified in the "Recommended Operating Conditions" table on page 6 of FN8179 Rev.2.00, and applies directly to the X9315WS-2.7 variant as confirmed in the Ordering Information table on page 2.
Does the X9315WS-2.7 retain its wiper position after power loss?
Yes, the X9315WS-2.7 stores the wiper position in nonvolatile EEPROM memory and recalls it automatically on power-up. This behavior is guaranteed by its 100-year data retention specification and is enabled by asserting CS HIGH while INC is HIGH - a feature confirmed in the "Principles of Operation" section (page 4) and "Mode Selection" table (page 5) of the X9315 datasheet.
What package type is used for the X9315WS-2.7?
The X9315WS-2.7 uses an 8-lead narrow-body SOIC package (JEDEC MS-012-AA, drawing M8.15E), as stated in the Ordering Information table on page 2 of FN8179 Rev.2.00. This package has 1.27 mm lead pitch, 4.90 mm × 3.90 mm body size, and Pb-free RoHS-compliant construction.
How many wiper positions does the X9315WS-2.7 support?
The X9315WS-2.7 supports 32 discrete wiper positions, corresponding to a 5-bit counter driving a 31-resistor array with taps at each node and both ends. This is explicitly defined in the device description on page 1 ("32 wiper tap points") and confirmed in the "Principles of Operation" section (page 4) of FN8179 Rev.2.00.
What is the maximum wiper current rating for the X9315WS-2.7?
The X9315WS-2.7 has a maximum wiper current rating of ±3.75 mA, as specified in the "Recommended Operating Conditions" table on page 6 of FN8179 Rev.2.00. Exceeding this limit risks exceeding the 10 mW maximum power rating and may degrade long-term reliability.
X9315WS-2.7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Taper:
- Linear
- Configuration:
- Potentiometer
- Number of Circuits:
- 1
- Number of Taps:
- 32
- Resistance (Ohms):
- 10k
- Interface:
- Up/Down (U/D, INC, CS)
- Memory Type:
- Non-Volatile
- Voltage - Supply:
- 2.7V ~ 5.5V
- Features:
- -
- Tolerance:
- ±20%
- Temperature Coefficient (Typ):
- ±300ppm/°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-SOIC
- Operating Temperature:
- 0°C ~ 70°C
- Resistance - Wiper (Ohms) (Typ):
- 400
X9315WS-2.7 FAQ
1.How can I place an order for X9315WS-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9315WS-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 X9315WS-2.7 reliable?
The price and inventory of X9315WS-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 X9315WS-2.7 is usually 5 days.
3.What payment methods are accepted for X9315WS-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9315WS-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9315WS-2.7?
X9315WS-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9315WS-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 X9315WS-2.7?
For technical support, including X9315WS-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9315WS-2.7 requirements.
6.How does Aetrix verify that X9315WS-2.7 is sourced from the original manufacturer or authorized distributors?
All X9315WS-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 X9315WS-2.7 meets industry standards.
7.What is the process for return or replacement of X9315WS-2.7?
All X9315WS-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with X9315WS-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 X9315WS-2.7 part is unused and in its original packaging.
Return procedure for X9315WS-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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