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Renesas X9315WM-2.7
- Part No.:
- X9315WM-2.7
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
X9315WM-2.7.pdf
- Description:
- IC DGTL POT 10KOHM 32TAP 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,923
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Product details
Overview
X9315WM-2.7 from Intersil is a low-noise, low-power digitally controlled potentiometer (XDCP™) with 32 wiper tap points, nonvolatile memory for power-up recall, and 10kΩ end-to-end resistance. It operates from 2.7V to 5.5V, draws ≤80µA active current, and uses a 3-wire serial interface (CS/U/D/INC) for wiper position control in analog signal conditioning circuits.
For engineers reviewing the X9315WM-2.7 datasheet, X9315WM-2.7 pinout, X9315WM-2.7 application, or X9315WM-2.7 equivalent, this device serves as a solid-state replacement for mechanical potentiometers in precision voltage divider, gain adjustment, and offset trimming functions where EEPROM-retained settings and temperature-stable resistance are required.
Technical Context
The X9315WM-2.7 implements a 31-element resistor array with make-before-break wiper switching, enabling glitch-free tap transitions. Its 5-bit up/down counter drives a decoder that selects one of 32 discrete wiper positions, with wiper resistance ranging from 400Ω to 1000Ω at VCC = 2.7V.
Nonvolatile storage is triggered by a CS↑ while INC = HIGH, writing the current counter value to EEPROM with 100,000-cycle endurance and 100-year data retention. The device supports both three-terminal potentiometer and two-terminal variable resistor configurations, with terminal voltages bounded by VSS and VCC.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-end resistance | 10kΩ ±20% - defines full-scale analog range for voltage division or current limiting |
| Supply voltage range | 2.7V to 5.5V - enables direct compatibility with 3.3V and 5V logic systems without level shifting |
| Active supply current | 80µA max - ensures minimal power impact in battery-powered or energy-sensitive designs |
| Wiper resistance | 400–1000Ω at 2.7V - affects insertion loss and loading in high-impedance signal paths |
| Resolution | 3% - corresponds to ~310Ω step size across 10kΩ, suitable for coarse to medium-fine analog tuning |
| Temperature coefficient | ±300 ppm/°C - limits resistance drift over industrial temperature range (0°C to 70°C) |
| Nonvolatile store time | 5–10 ms - determines minimum system delay before safe reconfiguration after wiper adjustment |
Pinout & Package
Package: 8-lead MSOP (Pb-free), JEDEC MO-187AA compliant, footprint M8.118, dimensions 3.0mm × 3.0mm × 0.85mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RH/VH | High terminal | Fixed end of resistor array; connects to maximum potential (VCC) in voltage divider mode |
| RL/VL | Low terminal | Fixed end of resistor array; connects to minimum potential (VSS) in voltage divider mode |
| RW/VW | Wiper terminal | Movable tap point; output node whose voltage scales linearly between VH and VL based on position |
| VCC | Supply voltage | Positive power rail (2.7–5.5V); powers internal logic and resistor array |
| VSS | Ground | Reference return path for all analog and digital circuitry |
| CS | Chip select | Active-low enable; initiates communication and triggers nonvolatile store when rising edge occurs with INC = HIGH |
| U/D | Up/down control | Directs wiper movement direction: HIGH increments, LOW decrements counter on each INC edge |
| INC | Increment clock | Negative-edge-triggered input; advances wiper position per transition, synchronized to U/D state |
Key Features
| Feature | Design Value |
|---|---|
| 3-wire serial interface | Eliminates need for I²C/SPI peripherals; compatible with GPIO-controlled microcontrollers using minimal pins |
| Nonvolatile wiper position storage | Ensures repeatable startup behavior without host initialization-critical for calibration-critical instruments |
| Make-before-break wiper switching | Prevents open-circuit transients during tap changes, avoiding signal discontinuities in audio or sensor paths |
| Temperature-compensated resistor array | Maintains ratiometric stability (±20 ppm/°C) for precision gain/offset control across operating temperature |
| Low 5µA standby current | Enables always-on configuration in power-constrained systems without significant quiescent drain |
Applications
| Audio Signal Level Control | DC Offset Calibration |
|---|---|
|
Use Scenario: Adjusting volume or balance in analog audio front-ends without mechanical wear or contact noise. IC Role / Device Role / Timing Role: Three-terminal potentiometer configured as voltage divider between line-level input and op-amp inverting input. Use Value: 32-step resolution provides sufficient granularity for user-adjustable gain while nonvolatile memory retains last-set level across power cycles. |
Use Scenario: Compensating sensor output drift or amplifier input offset in industrial temperature monitoring systems. IC Role / Device Role / Timing Role: Two-terminal variable resistor in op-amp feedback loop to tune null-point correction voltage. Use Value: ±20% RTOTAL tolerance and ±300 ppm/°C TC allow stable trim over 0°C–70°C commercial range without recalibration. |
| Programmable Gain Amplifier | Power Supply Feedback Divider |
|
Use Scenario: Dynamically scaling gain in medical instrumentation amplifiers based on signal amplitude detection. IC Role / Device Role / Timing Role: Wiper-connected to op-amp reference pin; RH/VH and RL/VL set feedback ratio via microcontroller commands. Use Value: 80µA active current and 2.7V operation support integration into low-power portable devices without burdening supply rails. |
Use Scenario: Setting output voltage of adjustable DC-DC converters where factory-programmed or field-updatable trim is required. IC Role / Device Role / Timing Role: Replaces fixed resistor divider with RH/VH–RW/VW–RL/VL configuration feeding error amplifier feedback pin. Use Value: Nonvolatile storage allows permanent VOUT setting post-manufacturing, eliminating manual solder-jumper configuration. |
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, 10kΩ, ±30% RTOTAL, 128 taps, 1.8–5.5V operation | Supports dual independent pots; higher resolution but lacks nonvolatile store on power cycle | Select when multi-pot integration or I²C bus compatibility outweighs need for EEPROM-retained startup state |
| MCP41010-I/P | Single-channel, SPI interface, 10kΩ, ±20% RTOTAL, 257 taps, 2.7–5.5V, volatile wiper register only | Higher resolution (8-bit) but requires external MCU to reload wiper position after every power-up | Select when fine-grained adjustment is prioritized and host firmware can manage persistent state externally |
Compared with AD5243BRMZ10 and MCP41010-I/P, the X9315WM-2.7 uniquely combines single-pot simplicity, guaranteed power-up recall, and ultra-low 5µA standby current-making it optimal for cost-sensitive, self-contained analog trim applications where EEPROM persistence and minimal pin count are mandatory.
Availability
X9315WM-2.7 is available at Aetrix Electronics and suitable for audio equipment manufacturing, industrial sensor calibration, programmable power supplies, and portable medical instrumentation requiring stable component supply and long-term design continuity.
Supply support for X9315WM-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) is a semiconductor manufacturer specializing in precision analog, power management, and interface ICs for industrial, communications, and computing markets.
The X9315 product line delivers digitally programmable analog resistance with nonvolatile memory, targeting applications needing mechanical potentiometer replacement without sacrificing reliability, repeatability, or board space.
FAQ
What is the supply voltage range for the X9315WM-2.7?
The X9315WM-2.7 operates from 2.7V to 5.5V, supporting both 3.3V and 5V system rails without external regulation. This range is explicitly defined in the datasheet's Recommended Operating Conditions table and validated across the commercial temperature range (0°C to +70°C). Operation outside this window may compromise wiper positioning accuracy or nonvolatile write integrity.
Does the X9315WM-2.7 retain its wiper position after power cycling?
Yes-the X9315WM-2.7 stores the last wiper position in nonvolatile EEPROM memory and automatically recalls it upon power-up. This behavior is guaranteed by the device architecture: a CS↑ transition with INC = HIGH triggers storage, and the stored value loads into the wiper counter at VCC ramp completion. No host intervention is required for restoration.
How many wiper positions does the X9315WM-2.7 support?
The X9315WM-2.7 provides 32 discrete wiper tap points, corresponding to a 5-bit counter (0–31). This is implemented via a 31-resistor ladder network with connections at both ends and between each element. Each tap represents a fixed voltage division ratio, delivering ~3% resolution across the full 10kΩ end-to-end resistance.
What package type is used for the X9315WM-2.7?
The X9315WM-2.7 is supplied in an 8-lead MSOP (Mini Small Outline Plastic) package, Pb-free and RoHS-compliant, with JEDEC MO-187AA outline and package drawing M8.118. Its compact 3.0mm × 3.0mm footprint and 0.85mm height support high-density PCB layouts typical in portable and space-constrained electronics.
Can the X9315WM-2.7 be used as a two-terminal variable resistor?
Yes-the X9315WM-2.7 supports two-terminal operation by connecting either RH/VH or RL/VL to RW/VW and using the remaining terminal with the wiper. This configuration functions as a digitally adjustable rheostat, enabling current-limiting or bias-setting applications where only one variable resistance node is needed.
X9315WM-2.7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm 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-MSOP
- Operating Temperature:
- 0°C ~ 70°C
- Resistance - Wiper (Ohms) (Typ):
- 400
X9315WM-2.7 FAQ
1.How can I place an order for X9315WM-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9315WM-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 X9315WM-2.7 reliable?
The price and inventory of X9315WM-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 X9315WM-2.7 is usually 5 days.
3.What payment methods are accepted for X9315WM-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9315WM-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9315WM-2.7?
X9315WM-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9315WM-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 X9315WM-2.7?
For technical support, including X9315WM-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9315WM-2.7 requirements.
6.How does Aetrix verify that X9315WM-2.7 is sourced from the original manufacturer or authorized distributors?
All X9315WM-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 X9315WM-2.7 meets industry standards.
7.What is the process for return or replacement of X9315WM-2.7?
All X9315WM-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with X9315WM-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 X9315WM-2.7 part is unused and in its original packaging.
Return procedure for X9315WM-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
X9315WM-2.7 Tags
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MCP4018T-103E/LT
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MCP4011T-103E/SN
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