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Renesas X9315WMIT2
- Part No.:
- X9315WMIT2
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
X9315WMIT2.pdf
- Description:
- IC DGTL POT 10KOHM 32TAP 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,638
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Product details
Overview
X9315WMIT2 from Intersil is a digitally controlled potentiometer (XDCP™) implementing a 31-element resistor array with 32 wiper tap positions, nonvolatile wiper position storage, and 3-wire serial interface (CS/U/D/INC). It operates at 5V ±10%, delivers 10kΩ end-to-end resistance, supports industrial temperature range (–40°C to +85°C), and functions as a three-terminal voltage divider or two-terminal variable resistor in analog signal conditioning circuits.
For engineers reviewing the X9315WMIT2 datasheet, X9315WMIT2 pinout, X9315WMIT2 application, or X9315WMIT2 equivalent, this page provides verified technical context, exact pin roles, real-world use cases in precision trimming and programmable gain control, and validated alternative parts for design continuity-no inference, no generic claims.
Technical Context
The X9315WMIT2 integrates a 5-bit up/down counter, nonvolatile EEPROM for wiper position retention, and a decoder-driven switching network across 31 resistive elements. Wiper movement is edge-triggered via INC input with direction controlled by U/D logic level, and position storage occurs on CS↑ while INC = HIGH.
It uses CMOS technology with active current ≤80µA at VCC = 5V, standby current ≤5µA, and features make-before-break switching during tap transitions. Terminal voltages are rail-to-rail (0 to VCC), wiper resistance is 200Ω (typ.) at 5V, and absolute linearity error is ±1 MI (minimum increment).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-end resistance | 10kΩ ±20% - defines full-scale analog adjustment range and load interaction in voltage divider configurations |
| Wiper tap count | 32 positions - enables 31-step resolution for fine-grained analog parameter tuning |
| Supply voltage | 5V ±10% - compatible with standard 5V logic and analog rails; not rated for 2.7V operation |
| Nonvolatile storage | 100-year data retention, 100,000 write cycles - ensures power-up repeatability without external memory or initialization firmware |
| Operating temperature | –40°C to +85°C - qualified for industrial environments including motor controls and sensor interfaces |
| Interface protocol | 3-wire asynchronous (CS/U/D/INC) - requires no clock line or address decoding; minimal GPIO overhead for microcontroller integration |
| Wiper resistance | 200Ω (typ.) at VCC = 5V - impacts loading error in high-impedance feedback paths and must be factored into gain accuracy calculations |
Pinout & Package
Package: 8-lead MSOP (M8.118), body dimensions 3.0mm × 3.0mm × 0.85mm, RoHS-compliant, industrial temperature grade.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Positive supply input | Must be ≥ VH, VL, VW; powers internal logic and resistor array; 5V ±10% nominal |
| VSS | Ground reference | Return path for all internal currents; must be low-impedance for noise-sensitive analog operation |
| RH/VH | High terminal of resistor array | Fixed end of potentiometer; connects to maximum potential node (e.g., VCC or signal source) |
| RL/VL | Low terminal of resistor array | Fixed end of potentiometer; connects to minimum potential node (e.g., VSS or signal sink) |
| RW/VW | Wiper output terminal | Movable contact point; delivers tapped voltage/current; series resistance ≈200Ω affects loading |
| CS | Chip select input | Active-low enable; initiates wiper movement when LOW; triggers nonvolatile store on rising edge with INC = HIGH |
| U/D | Direction control input | Defines wiper motion direction: HIGH = increment, LOW = decrement; sampled synchronously with INC edge |
| INC | Increment clock input | Negative-edge triggered; advances or retreats wiper one step per valid transition; timing tCYC ≥4µs required |
Key Features
| Feature | Design Value |
|---|---|
| Solid-state construction | Eliminates mechanical wear, vibration sensitivity, and contact bounce-enables >100,000 adjustments over product lifetime |
| Nonvolatile wiper storage | Retains last-set position across power cycles; eliminates boot-time calibration routines in embedded systems |
| Temperature-compensated array | ±300 ppm/°C RTOTAL drift and ±20 ppm/°C ratiometric coefficient ensure stable voltage division over –40°C to +85°C |
| Low-power CMOS operation | 80µA active current and 5µA standby current support battery-powered or energy-constrained applications |
| Rail-to-rail terminal voltage | Supports VH/VL inputs from 0V to VCC, enabling direct interfacing with op-amp rails and unbuffered DAC outputs |
Applications
| Audio Volume Control | Programmable Gain Amplifier |
|---|---|
|
Use Scenario: Digital volume adjustment in consumer audio equipment using push-button or MCU-based UI. IC Role / Device Role / Timing Role: Three-terminal potentiometer replacing mechanical trimmer; wiper position sets attenuation ratio between input and output stages. Use Value: Eliminates manual calibration, enables recall of user presets, and avoids mechanical failure modes in high-vibration environments. |
Use Scenario: Adjustable gain setting in instrumentation amplifiers where gain must be reconfigured dynamically during measurement. IC Role / Device Role / Timing Role: Two-terminal variable resistor in op-amp feedback loop; RW/VW and RL/VL form Rf, RH/VH tied to ground or reference. Use Value: Enables software-selectable gain ranges (e.g., 1×, 10×, 100×) without PCB layout changes or component swaps. |
| Sensor Offset Calibration | Power Supply Trim |
|
Use Scenario: Compensating thermal drift in bridge-based pressure or temperature sensors within industrial transmitters. IC Role / Device Role / Timing Role: Voltage divider feeding op-amp summing junction; wiper adjusts DC offset injected into sensor signal path. Use Value: Allows field recalibration via firmware update instead of hardware rework; nonvolatile storage preserves factory-trimmed values. |
Use Scenario: Fine-tuning output voltage of adjustable linear regulators (e.g., LM317) in test equipment or lab power supplies. IC Role / Device Role / Timing Role: Replaces fixed resistor in ADJ pin feedback network; RH/VH connected to VOUT, RL/VL to ground, RW/VW to ADJ. Use Value: Enables digital remote adjustment and automated calibration sequences, reducing manual potentiometer dependency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digitally controlled potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5241BRMZ10 | I²C interface, 10kΩ, 256 taps, ±30% RTOL, 2.7–5.5V supply | Higher resolution but lacks true nonvolatile store (requires external EEPROM or periodic refresh) | Choose for I²C bus compatibility and finer step resolution where EEPROM management is acceptable |
| MCP41010-I/P | SPIM interface, 10kΩ, 257 taps, ±20% RTOL, 2.7–5.5V supply, volatile wiper register | No nonvolatile memory; wiper resets to mid-scale on power-up unless host reloads value | Choose for SPI-native systems needing fast updates and lower cost, accepting need for host-initiated restore |
Compared with X9315WMIT2, AD5241BRMZ10 offers higher resolution and I²C simplicity but requires external nonvolatile storage for power-loss immunity, while MCP41010-I/P delivers faster SPI updates and broader voltage range but mandates host firmware intervention to retain settings across power cycles.
Availability
X9315WMIT2 is available at Aetrix Electronics and suitable for industrial sensor calibration, programmable power supply trimming, and embedded audio control requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for X9315WMIT2 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 industrial, computing, and communications markets, emphasizing reliability and precision.
The X9315WMIT2 belongs to Intersil's XDCP™ family of digitally controlled potentiometers, engineered specifically for replacing mechanical pots in analog signal-path trimming applications where nonvolatile setting retention and industrial temperature operation are critical.
FAQ
What is the supply voltage range for the X9315WMIT2?
The X9315WMIT2 is specified for 5V ±10% operation (4.5V to 5.5V). It is not rated for 2.7V operation-the X9315WMIT2 variant does not include the "-2.7" suffix found in other family members like X9315WMI-2.7T2. Applying voltages outside 4.5–5.5V violates Absolute Maximum Ratings and may cause functional failure or reduced reliability of the X9315WMIT2.
Does the X9315WMIT2 retain its wiper position after power cycling?
Yes, the X9315WMIT2 stores the last wiper position in nonvolatile EEPROM and automatically recalls it on power-up. This behavior is intrinsic to the device architecture and requires no external components or host intervention. The stored value persists for 100 years and withstands 100,000 write cycles, ensuring reliable repeatability across the lifetime of systems using the X9315WMIT2.
What package type is used for the X9315WMIT2?
The X9315WMIT2 uses an 8-lead MSOP package (JEDEC MO-187AA, Intersil drawing M8.118), measuring 3.0mm × 3.0mm × 0.85mm. It is RoHS-compliant, rated for –40°C to +85°C operation, and features gull-wing leads compatible with standard SMT reflow profiles. This package is distinct from SOIC or PDIP variants in the X9315 family.
Can the X9315WMIT2 be used as a two-terminal variable resistor?
Yes, the X9315WMIT2 can operate as a two-terminal variable resistor by connecting either RH/VH or RL/VL to the same node as RW/VW, leaving the unused terminal open or grounded depending on configuration. In this mode, resistance varies from near-zero (wiper at connected end) to full RTOTAL (wiper at opposite end), enabling current-limiting or bias-setting functions in the X9315WMIT2's analog signal path.
What is the wiper resistance specification for the X9315WMIT2?
The X9315WMIT2 has a typical wiper resistance (RW) of 200Ω at VCC = 5V, with a maximum of 400Ω. This series resistance directly impacts accuracy in high-impedance applications-for example, in op-amp feedback networks, it introduces gain error proportional to RW/Rf. Designers must account for this 200Ω (typ.) value when calculating total effective resistance in circuits using the X9315WMIT2.
X9315WMIT2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- 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:
- 5V
- Features:
- -
- Tolerance:
- ±20%
- Temperature Coefficient (Typ):
- ±300ppm/°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-MSOP
- Operating Temperature:
- -40°C ~ 85°C
- Resistance - Wiper (Ohms) (Typ):
- 200
X9315WMIT2 FAQ
1.How can I place an order for X9315WMIT2 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9315WMIT2 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 X9315WMIT2 reliable?
The price and inventory of X9315WMIT2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9315WMIT2 is usually 5 days.
3.What payment methods are accepted for X9315WMIT2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9315WMIT2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9315WMIT2?
X9315WMIT2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9315WMIT2 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 X9315WMIT2?
For technical support, including X9315WMIT2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9315WMIT2 requirements.
6.How does Aetrix verify that X9315WMIT2 is sourced from the original manufacturer or authorized distributors?
All X9315WMIT2 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 X9315WMIT2 meets industry standards.
7.What is the process for return or replacement of X9315WMIT2?
All X9315WMIT2 units undergo pre-shipment inspection (PSI). If there is an issue with X9315WMIT2, 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 X9315WMIT2 part is unused and in its original packaging.
Return procedure for X9315WMIT2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
X9315WMIT2 Tags
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