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Renesas X9315WMIT1
- Part No.:
- X9315WMIT1
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
X9315WMIT1.pdf
- Description:
- IC DGTL POT 10KOHM 32TAP 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,420
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Product details
Overview
X9315WMIT1 from Intersil is a digitally controlled potentiometer (XDCP™) implementing a 31-element resistor array with 32 discrete wiper tap positions, nonvolatile wiper position storage, and 3-wire serial interface (CS/U/D/INC). It operates as a three-terminal voltage divider or two-terminal variable resistor in analog signal conditioning circuits requiring stable resistance trimming across temperature. Designed for industrial-grade operation from –40°C to +85°C, it supports VCC = 2.7V to 5.5V and offers ±20% end-to-end resistance tolerance at RTOTAL = 10kΩ.
For engineers reviewing the X9315WMIT1 datasheet, X9315WMIT1 pinout, X9315WMIT1 application, or X9315WMIT1 equivalent, this page delivers verified specifications including wiper resistance (400–1000Ω at 2.7V), absolute linearity (±1 MI), ratiometric tempco (±20 ppm/°C), noise (–120 dBV), and EEPROM endurance (100,000 cycles).
Technical Context
The X9315WMIT1 integrates a 5-bit up/down counter, nonvolatile memory for wiper position retention, and a decoder-driven switching network that selects one of 32 taps across a monolithic 31-resistor ladder. Wiper movement follows make-before-break switching to prevent open-circuit transients during position changes.
Control logic responds to negative-edge-triggered INC pulses while U/D sets direction; CS enables device selection and initiates nonvolatile store when transitioned high with INC high. The device enters standby mode (ISB ≤ 5 µA) when deselected, and recalls last stored wiper position on power-up.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RTOTAL | 10kΩ ±20% - defines full-scale resistance range for voltage division or current limiting |
| VCC Range | 2.7V to 5.5V - supports dual-supply systems and battery-powered designs without level-shifting |
| Wiper Resistance | 400–1000Ω at VCC = 2.7V - impacts minimum achievable output impedance and loading error in divider configurations |
| Resolution | 3% - corresponds to 1/31 step size (MI = RTOTAL/31), enabling fine-grained analog adjustment |
| Absolute Linearity | ±1 MI - ensures wiper voltage deviation stays within ±1 least-significant step across full travel |
| Nonvolatile Endurance | 100,000 data changes per bit - guarantees long-term field reliability for repeated calibration cycles |
| Data Retention | 100 years - maintains factory or user-set wiper position through decades of storage or infrequent power cycles |
Pinout & Package
Package: 8-lead MSOP (M8.118), Pb-free, industrial temperature range (–40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RH/VH | High terminal | Fixed end of resistor array; connects to maximum potential (VCC) in standard voltage divider use |
| RL/VL | Low terminal | Fixed end of resistor array; connects to minimum potential (VSS) in standard voltage divider use |
| RW/VW | Wiper terminal | Movable contact point; output node whose voltage scales linearly between VH and VL based on tap position |
| VSS | Ground | Reference return path for supply and signal; must be tied to system ground plane |
| VCC | Supply voltage | Power rail for internal logic and resistor array; accepts 2.7V–5.5V with no sequencing requirement |
| U/D | Up/down control input | Logic-level direction selector: HIGH increments wiper, LOW decrements wiper on each INC edge |
| INC | Increment control input | Negative-edge-triggered clock; toggling moves wiper one position in direction set by U/D |
| CS | Chip select | Active-low enable; stores current wiper position to EEPROM when rising edge occurs with INC = HIGH |
Key Features
| Feature | Design Value |
|---|---|
| Solid-state construction | Eliminates mechanical wear, contact bounce, and vibration sensitivity inherent in electro-mechanical potentiometers |
| Nonvolatile wiper storage | Recalls last programmed position on power-up-enables consistent startup behavior without host MCU initialization |
| Temperature-compensated array | Ratiometric tempco of ±20 ppm/°C ensures stable voltage division ratio over –40°C to +85°C operating range |
| Low-power CMOS design | Active current ≤ 80 µA and standby current ≤ 5 µA extend battery life in portable instrumentation and sensor nodes |
| Make-before-break switching | Prevents momentary open-circuit at wiper during position transitions-critical for maintaining signal continuity in audio or feedback paths |
Applications
| Audio Signal Level Control | Industrial Sensor Calibration |
|---|---|
Use Scenario: Adjusting gain or volume in analog audio front-ends without microcontroller intervention. IC Role / Device Role / Timing Role: Three-terminal voltage divider setting bias or attenuation in op-amp feedback networks. Use Value: Eliminates manual trimpots subject to drift; retains user-set volume after power cycling. |
Use Scenario: Compensating offset/gain errors in pressure or temperature transducer signal chains. IC Role / Device Role / Timing Role: Two-terminal variable resistor calibrating reference current or amplifier feedback ratio. Use Value: Enables field recalibration via simple digital commands; preserves calibration across equipment reboots. |
| Programmable Power Supply Trim | Medical Instrument Analog Front-End |
Use Scenario: Fine-tuning output voltage of adjustable DC-DC converters or linear regulators. IC Role / Device Role / Timing Role: Voltage divider setting feedback node voltage for regulation loop. Use Value: Supports remote firmware-based trim without hardware modification or soldering. |
Use Scenario: Setting precision gain and offset in ECG or EEG analog acquisition stages. IC Role / Device Role / Timing Role: Low-noise (–120 dBV), low-drift resistor network for biopotential amplification. Use Value: Meets medical-grade stability requirements with 100-year data retention and ±20 ppm/°C ratiometric tracking. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digitally controlled potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5175BRMZ-10 | 256-tap I²C interface; higher resolution but larger 10kΩ tolerance (±30%); no built-in nonvolatile store (requires external EEPROM) | Requires I²C host and external memory management; better for high-resolution trimming where EEPROM write cycles are infrequent | Select when finer granularity (0.4% step vs. 3%) and I²C compatibility outweigh need for autonomous power-up recall |
| MCP41HV51-103 | 100kΩ RTOTAL; SPI interface; 10-bit resolution (1024 taps); nonvolatile store; higher VCC max (12V) | Supports higher-voltage analog rails; suited for industrial motor control feedback, not low-voltage sensor interfaces | Choose for 10–12V systems needing >100kΩ resistance or SPI-native integration; not drop-in for 2.7–5.5V, 10kΩ designs |
Compared with AD5175BRMZ-10 and MCP41HV51-103, the X9315WMIT1 provides optimal balance of industrial temperature support, autonomous power-up behavior, low quiescent current, and minimal interface complexity-making it ideal for cost-sensitive, battery-operated, or maintenance-free analog trimming where 32-step resolution suffices.
Availability
X9315WMIT1 is available at Aetrix Electronics and suitable for industrial sensor calibration, programmable power supply trim, and medical instrument analog front-end designs requiring stable component supply with guaranteed long-term availability.
Supply support for X9315WMIT1 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, aerospace, and communications markets.
The X9315WMIT1 belongs to Intersil's XDCP™ (Digitally Controlled Potentiometer) family, engineered for replacing mechanical potentiometers in applications demanding repeatable, nonvolatile, and digitally programmable resistance adjustment.
FAQ
What is the operating temperature range for the X9315WMIT1?
The X9315WMIT1 is rated for industrial operation from –40°C to +85°C. This range is confirmed in the Ordering Information table (Page 2) and Recommended Operating Conditions (Page 6) of the FN8179 datasheet. Its temperature-compensated resistor array ensures stable performance across this full span, with ratiometric tempco specified at ±20 ppm/°C.
Does the X9315WMIT1 retain its wiper position after power loss?
Yes, the X9315WMIT1 stores the wiper position in nonvolatile memory and automatically recalls it on power-up. This behavior is intrinsic to the device architecture: a store operation is triggered when CS transitions high while INC is high, and the value persists for 100 years per the Endurance and Data Retention table (Page 7).
What package type does the X9315WMIT1 use?
The X9315WMIT1 uses an 8-lead MSOP package (JEDEC MO-187AA, pkg drawing M8.118), as explicitly stated in the Ordering Information table (Page 2) and confirmed in the Package Outline Drawing (Page 13). It is Pb-free and RoHS compliant.
How many wiper tap positions does the X9315WMIT1 support?
The X9315WMIT1 supports exactly 32 wiper tap positions. This is defined by its 5-bit counter and 31-resistor array structure (with taps at both ends and between each element), as detailed in the Functional Description (Page 1) and Pin Configuration (Page 4) sections of the datasheet.
What is the maximum supply voltage for the X9315WMIT1?
The X9315WMIT1 supports a VCC range of 2.7V to 5.5V, as specified in the "X9315-2.7" variant column of the Ordering Information table (Page 2) and confirmed in the Recommended Operating Conditions (Page 6). This allows direct compatibility with both 3.3V and 5V logic systems without external regulation.
X9315WMIT1 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
X9315WMIT1 FAQ
1.How can I place an order for X9315WMIT1 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9315WMIT1 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 X9315WMIT1 reliable?
The price and inventory of X9315WMIT1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9315WMIT1 is usually 5 days.
3.What payment methods are accepted for X9315WMIT1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9315WMIT1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9315WMIT1?
X9315WMIT1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9315WMIT1 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 X9315WMIT1?
For technical support, including X9315WMIT1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9315WMIT1 requirements.
6.How does Aetrix verify that X9315WMIT1 is sourced from the original manufacturer or authorized distributors?
All X9315WMIT1 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 X9315WMIT1 meets industry standards.
7.What is the process for return or replacement of X9315WMIT1?
All X9315WMIT1 units undergo pre-shipment inspection (PSI). If there is an issue with X9315WMIT1, 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 X9315WMIT1 part is unused and in its original packaging.
Return procedure for X9315WMIT1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
X9315WMIT1 Tags
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