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Renesas X9317WM8-2.7T1
- Part No.:
- X9317WM8-2.7T1
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
X9317WM8-2.7T1.pdf
- Description:
- IC DGTL POT 10KOHM 100TAP 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,200
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Product details
Overview
X9317WM8-2.7T1 from Renesas Electronics is a digitally controlled potentiometer (XDCP™) with 100 wiper tap points, nonvolatile wiper position storage, and 10 kΩ end-to-end resistance. It operates from 2.7 V to 5.5 V, consumes <5 µA standby current, and uses a 3-wire up/down serial interface for precise analog trimming in voltage divider or variable resistor configurations.
For engineers reviewing the X9317WM8-2.7T1 datasheet, X9317WM8-2.7T1 pinout, X9317WM8-2.7T1 application, or X9317WM8-2.7T1 equivalent, this device serves as a solid-state replacement for mechanical potentiometers in precision DC bias adjustment, laser diode control, and LCD voltage regulation where power-up repeatability and long-term stability are required.
Technical Context
The X9317WM8-2.7T1 implements a 99-element resistor array with make-before-break wiper switching, enabling glitch-free tap transitions. Its 7-bit counter drives a decoder that selects one of 100 discrete wiper positions, with position stored in nonvolatile memory upon CS↑/INC↑.
It supports three-terminal potentiometer (voltage divider) and two-terminal variable resistor (current control) topologies. Temperature-compensated design delivers ±20% RTOTAL tolerance and ±300 ppm/°C total resistance TC, while ratiometric TC remains within ±20 ppm/°C for stable voltage division across temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-end Resistance | 10 kΩ ±20% - defines full-scale analog range and sets maximum power dissipation limit (10 mW) |
| Supply Voltage Range | 2.7 V to 5.5 V - enables direct compatibility with 3.3 V and 5 V systems without level-shifting |
| Standby Current | <5 µA - ensures negligible quiescent drain in battery-powered or always-on bias circuits |
| Wiper Resolution | 1% (100 taps) - provides 9.9 mV step resolution across 1 V span, sufficient for fine gain/offset trim |
| Nonvolatile Storage | 100 years data retention, 100,000 write cycles - guarantees factory-set or user-trimmed values survive power cycling and field operation |
| Interface Type | 3-wire up/down (CS/U/D/INC) - eliminates need for clock or data lines; simplifies MCU GPIO usage |
| Wiper Resistance | 200 Ω typical at 5 V, 400 Ω typical at 2.7 V - contributes predictable series impedance in signal paths |
| Operating Temperature | 0°C to +70°C - validated for commercial-grade embedded systems including industrial HMI and instrumentation |
Pinout & Package
Package: 8-lead MSOP (M8.118), RoHS-compliant, moisture sensitivity level (MSL) 1, body dimensions 3.0 mm × 3.0 mm × 0.85 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (INC) | Increment clock input | Negative-edge-triggered; toggling moves wiper up/down per U/D state; controls timing-critical tap transitions (tCYC = 2 µs min) |
| 2 (U/D) | Direction control input | Logic level determines wiper movement direction during INC edge; allows bidirectional adjustment without reinitialization |
| 3 (RH) | High terminal | Fixed end of resistor array; connects to higher potential node in voltage divider; not polarity-restricted |
| 4 (VSS) | Ground reference | Return path for supply and signal currents; must be low-impedance to minimize noise coupling into wiper output |
| 5 (RW) | Wiper output | Movable terminal; delivers tapped voltage/current; series resistance (200–1000 Ω) affects loading in high-impedance circuits |
| 6 (RL) | Low terminal | Fixed end of resistor array; connects to lower potential node (e.g., ground or negative rail); defines bottom of resistive ladder |
| 7 (CS) | Chip select | Active-low enable; initiates communication and triggers nonvolatile store when raised high with INC high |
| 8 (VCC) | Supply voltage | 2.7–5.5 V power input; powers internal logic and resistor array; decoupling capacitor required near pin |
Key Features
| Feature | Design Value |
|---|---|
| Nonvolatile wiper position storage | Recalls last set tap on power-up - eliminates manual recalibration and enables deterministic system startup |
| Temperature-compensated resistor array | ±300 ppm/°C absolute TC, ±20 ppm/°C ratiometric TC - maintains voltage division accuracy over temperature without external compensation |
| Make-before-break wiper switching | Prevents open-circuit glitches during tap transitions - critical for stable bias in op-amp feedback or regulator error amplifiers |
| Low-power CMOS architecture | <5 µA standby current, 80 µA active increment current - extends battery life in portable instrumentation and sensor modules |
| Three-terminal and two-terminal configuration support | Enables both voltage divider (e.g., LCD bias) and variable resistor (e.g., laser diode current limit) use cases with same device |
| RoHS-compliant MSOP package | 8-lead, 3 mm × 3 mm footprint - offers compact layout, thermal performance (θJA = 145°C/W), and compatibility with standard SMT assembly |
Applications
| Application 1 | Application 2 |
|---|---|
Use Scenario: Adjusting bias voltage for TFT-LCD panel gamma correction circuitry. IC Role / Device Role / Timing Role: Three-terminal potentiometer providing programmable voltage divider between VDD and ground to set reference levels for column drivers. Use Value: Enables factory calibration and dynamic contrast tuning via MCU; nonvolatile storage retains settings across display power cycles. |
Use Scenario: Trimming offset voltage in precision instrumentation amplifier front-end. IC Role / Device Role / Timing Role: Two-terminal variable resistor in op-amp feedback loop to null input stage mismatch. Use Value: Achieves sub-mV offset correction with 100-step resolution; low wiper resistance minimizes gain error contribution. |
| Application 3 | Application 4 |
Use Scenario: Controlling bias current for edge-emitting laser diodes in optical transceivers. IC Role / Device Role / Timing Role: Two-terminal variable resistor in laser driver current-sense path to set IBias. Use Value: Provides stable, drift-resistant current setting over temperature; 100-year data retention avoids field recalibration. |
Use Scenario: Setting output voltage of adjustable linear voltage regulator (e.g., LM317-based). IC Role / Device Role / Timing Role: Three-terminal potentiometer replacing mechanical trimmer in ADJ pin feedback network. Use Value: Enables remote digital adjustment and firmware-controlled voltage scaling; low standby current reduces no-load losses. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digitally controlled potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5170BRMZ-10 | I²C interface, 256-tap resolution, 10 kΩ, 2.7–5.5 V; no nonvolatile store in base version (requires external EEPROM) | Requires I²C master and external memory for persistent settings; better resolution but higher interface complexity | Select when I²C infrastructure exists and finer 0.4% steps are needed; avoid if MCU GPIO count is constrained |
| MCP41010-I/P | SPITM interface, 256-tap resolution, 10 kΩ, 2.7–5.5 V; built-in nonvolatile memory with 200k endurance | Uses SPI clock/data lines instead of up/down; faster update rate (10 MHz clock vs. 500 kHz INC toggle) | Choose for higher-speed trimming or when SPI peripherals are available; less suitable for minimal-GPIO designs |
Compared with AD5170BRMZ-10 and MCP41010-I/P, the X9317WM8-2.7T1 trades resolution and interface speed for ultra-low pin count, deterministic power-up behavior, and proven long-term reliability in commercial-temperature bias applications - making it optimal for cost-sensitive, space-constrained analog trimming where simplicity and repeatability outweigh raw resolution.
Availability
X9317WM8-2.7T1 is available at Aetrix Electronics and suitable for LCD bias control, laser diode bias adjustment, and voltage regulator output control requiring stable component supply across production lifecycles.
Supply support for X9317WM8-2.7T1 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
Renesas Electronics is a global semiconductor leader delivering microcontrollers, analog power, and SoC solutions for automotive, industrial, and IoT applications with emphasis on reliability and functional safety.
The X9317WM8-2.7T1 belongs to Renesas' XDCP™ (Digitally Controlled Potentiometer) product line, designed specifically for replacing mechanical trimmers in precision analog signal conditioning, power management, and display bias circuits where digital control and nonvolatile retention are essential.
FAQ
What is the operating voltage range for the X9317WM8-2.7T1?
The X9317WM8-2.7T1 operates from 2.7 V to 5.5 V, supporting both 3.3 V and 5 V systems without external regulation. This range is explicitly specified in the "Potentiometer Specifications" table on page 4 of the FN8183 datasheet, and the "-2.7" suffix in the part number denotes this extended low-voltage capability versus the standard 4.5–5.5 V variant.
Does the X9317WM8-2.7T1 retain its wiper position after power loss?
Yes, the X9317WM8-2.7T1 stores the wiper position in nonvolatile memory and automatically recalls it on power-up. The datasheet confirms 100-year data retention and 100,000 write cycles, with store triggered by raising CS high while INC is high - a feature validated in the "Principles of Operation" section on page 8.
What package type does the X9317WM8-2.7T1 use?
The X9317WM8-2.7T1 uses an 8-lead MSOP package (package drawing M8.118), as confirmed in the "Ordering Information" table on page 2 of FN8183. Its dimensions are 3.0 mm × 3.0 mm × 0.85 mm, with lead pitch of 0.65 mm and RoHS-compliant matte tin plating.
How many wiper tap positions does the X9317WM8-2.7T1 provide?
The X9317WM8-2.7T1 provides exactly 100 wiper tap positions, implemented via a 99-resistor-element array with endpoints. This is stated in the device description on page 1 and verified in Figure 1's block diagram and the "Potentiometer Specifications" table, where resolution is defined as 1%.
Can the X9317WM8-2.7T1 be used as a two-terminal variable resistor?
Yes, the X9317WM8-2.7T1 supports two-terminal operation by connecting either RH or RL to RW (wiper), effectively using only part of the resistor array as a programmable current-limiting element. This configuration is illustrated in Figure 4 ("Two Terminal Variable Resistor") and referenced in the Applications section on page 1.
X9317WM8-2.7T1 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:
- 100
- 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
X9317WM8-2.7T1 FAQ
1.How can I place an order for X9317WM8-2.7T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9317WM8-2.7T1 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 X9317WM8-2.7T1 reliable?
The price and inventory of X9317WM8-2.7T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9317WM8-2.7T1 is usually 5 days.
3.What payment methods are accepted for X9317WM8-2.7T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9317WM8-2.7T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9317WM8-2.7T1?
X9317WM8-2.7T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9317WM8-2.7T1 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 X9317WM8-2.7T1?
For technical support, including X9317WM8-2.7T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9317WM8-2.7T1 requirements.
6.How does Aetrix verify that X9317WM8-2.7T1 is sourced from the original manufacturer or authorized distributors?
All X9317WM8-2.7T1 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 X9317WM8-2.7T1 meets industry standards.
7.What is the process for return or replacement of X9317WM8-2.7T1?
All X9317WM8-2.7T1 units undergo pre-shipment inspection (PSI). If there is an issue with X9317WM8-2.7T1, 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 X9317WM8-2.7T1 part is unused and in its original packaging.
Return procedure for X9317WM8-2.7T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
X9317WM8-2.7T1 Tags
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MCP4018T-103E/LT
Microchip Technology
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MCP4018T-503E/LT
Microchip Technology
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MCP4011T-103E/SN
Microchip Technology
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MCP4018T-104E/LT
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MCP4017T-503E/LT
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MCP4018T-502E/LT
Microchip Technology
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MCP4017T-103E/LT
Microchip Technology
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MCP4531T-103E/MF
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MCP4021T-202E/SN
Microchip Technology
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MCP4023T-103E/CH
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MCP4022T-503E/CH
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MCP4551T-502E/MS
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