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Renesas X9317WS8IZ-2.7T1
- Part No.:
- X9317WS8IZ-2.7T1
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
X9317WS8IZ-2.7T1.pdf
- Description:
- IC DGTL POT 10KOHM 100TAP 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,386
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Product details
Overview
X9317WS8IZ-2.7T1 from Renesas Electronics is a digitally controlled potentiometer (XDCP™) with 100 wiper tap points, nonvolatile wiper position storage, and 2.7V to 5.5V supply operation. It implements a 99-element resistor array with temperature-compensated end-to-end resistance (±20% tolerance), low standby current (<5 µA), and ±300 ppm/°C total resistance temperature coefficient. It serves as a three-terminal voltage divider or two-terminal variable resistor in precision analog trim applications.
For engineers reviewing the X9317WS8IZ-2.7T1 datasheet, X9317WS8IZ-2.7T1 pinout, X9317WS8IZ-2.7T1 application, or X9317WS8IZ-2.7T1 equivalent, key selection criteria include its industrial temperature range (–40°C to +85°C), SOIC-8 package, 10 kΩ end-to-end resistance, 3-wire up/down interface timing (tCYC = 2 µs), and nonvolatile store/reload capability on power-up.
Technical Context
The X9317WS8IZ-2.7T1 integrates a 7-bit up/down counter, decoder, and nonvolatile memory to control wiper position across 100 discrete taps of a 99-resistor ladder. Its "make-before-break" switching ensures glitch-free transitions, and wiper position is retained for 100 years after nonvolatile store.
It operates with a 3-wire serial interface (CS, U/D, INC) using negative-edge-triggered INC and level-sensitive U/D for direction control. The device enters standby mode (<5 µA ICC) when CS is high, and supports both voltage-divider (RH–RW–RL) and variable-resistor (RW–RL or RW–RH) configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-end Resistance (RTOTAL) | 10 kΩ ±20% - defines full-scale adjustment range and load interaction in voltage divider or current-setting circuits. |
| 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 Resistance (RW) | 200 Ω typical at 5 V, 400 Ω typical at 2.7 V - impacts minimum achievable output impedance and signal integrity in buffered configurations. |
| Standby Current (ISB) | <5 µA - allows integration into battery-powered or ultra-low-power systems without significant quiescent drain. |
| Resolution & Linearity | 1% resolution (100 taps); ±1 MI absolute linearity - ensures predictable stepwise voltage division with ≤1% deviation from ideal transfer function. |
| Temperature Coefficient | ±300 ppm/°C RTOTAL; ±20 ppm/°C ratiometric - maintains stable resistance ratio over temperature, critical for bias and gain trimming. |
| Nonvolatile Endurance | 100,000 data changes per bit - supports frequent field calibration or adaptive tuning without memory wear-out concerns. |
Pinout & Package
Package: 8-lead SOIC (M8.15E), RoHS-compliant, industrial temperature range (–40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (INC) | Increment clock input | Negative-edge-triggered control signal; toggling moves wiper up/down depending on U/D state. |
| 2 (U/D) | Direction control input | High = increment wiper position; Low = decrement; determines polarity of INC action. |
| 3 (RH) | High terminal | Fixed end of resistor array; connects to higher potential node in voltage divider configuration. |
| 4 (VSS) | Ground reference | Logic and analog ground return; must be low-impedance for stable wiper voltage and noise immunity. |
| 5 (RW) | Wiper terminal | Movable tap point; output node for voltage division or adjustable resistance; series resistance ~200 Ω. |
| 6 (RL) | Low terminal | Fixed end of resistor array; connects to lower potential node (e.g., ground or negative rail) in divider use. |
| 7 (CS) | Chip select | Active-low enable; stores current wiper position to nonvolatile memory when deasserted while INC = HIGH. |
| 8 (VCC) | Supply voltage | 2.7 V to 5.5 V power rail; powers logic and resistor array; decoupling capacitor required near pin. |
Key Features
| Feature | Design Value |
|---|---|
| Nonvolatile wiper position storage | Retains last-set tap position across power cycles; recalled automatically at power-up for repeatable startup behavior. |
| 3-wire serial up/down interface | Eliminates need for SPI/I²C controllers; compatible with simple GPIO-driven microcontroller firmware. |
| Temperature-compensated resistor array | ±20 ppm/°C ratiometric TC ensures stable voltage division ratio across –40°C to +85°C operating range. |
| Make-before-break wiper switching | Prevents open-circuit transients during tap transitions; avoids glitches in sensitive analog feedback paths. |
| Low-power CMOS design | Standby current <5 µA and active current ≤80 µA enable use in always-on sensor conditioning or portable equipment. |
Applications
| LCD Bias Control | Laser Diode Bias Control |
|---|---|
|
Use Scenario: Adjusting VCOM or gamma reference voltages in TFT-LCD panels to maintain consistent contrast and grayscale fidelity across temperature and panel aging. IC Role / Device Role / Timing Role: Three-terminal potentiometer providing precise, stable DC bias voltage with nonvolatile recall for factory calibration retention. Use Value: Eliminates manual potentiometers and reduces calibration labor; ±1 MI linearity ensures accurate gamma curve implementation. |
Use Scenario: Setting precise bias current for laser diodes in optical transceivers or medical laser modules where output power stability is critical. IC Role / Device Role / Timing Role: Two-terminal variable resistor in series with laser diode cathode to regulate forward current via feedback loop. Use Value: 100-tap resolution enables fine current tuning; ±300 ppm/°C RTOTAL TC minimizes thermal drift-induced power variation. |
| Voltage Regulator Output Control | DC Bias Adjustment |
|
Use Scenario: Dynamically adjusting output voltage of adjustable LDOs or switching regulators (e.g., LM317, TLV7xxx) in programmable power supplies or adaptive systems. IC Role / Device Role / Timing Role: Resistor in feedback divider network; RH and RL connect to regulator output and ground, RW feeds feedback pin. Use Value: Nonvolatile storage preserves user-selected voltage setting across power loss; 10 kΩ RTOTAL matches common regulator feedback impedance targets. |
Use Scenario: Calibrating offset or gain in instrumentation amplifiers, op-amp-based sensors, or ADC front-ends during production test or field maintenance. IC Role / Device Role / Timing Role: Two-terminal variable resistor in amplifier gain-setting or offset-nulling network. Use Value: 100-tap granularity enables sub-1% calibration steps; low 200 Ω wiper resistance avoids loading error in high-impedance nodes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digitally controlled potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5171BRMZ-10 | I²C interface; 64 taps; 10 kΩ; ±30% RTOTAL tolerance; 500 ppm/°C TC. | Requires I²C master; lower resolution and worse temperature stability than X9317WS8IZ-2.7T1. | Choose when I²C bus is already present and 64-step resolution suffices. |
| MCP41010-I/P | SPI interface; 257 taps; 10 kΩ; ±20% RTOTAL; ±500 ppm/°C TC; no nonvolatile store on power-up. | Higher resolution but lacks automatic power-up recall; requires host MCU to reinitialize wiper position. | Choose when SPI is preferred and system firmware can manage wiper restoration. |
Compared with AD5171BRMZ-10 and MCP41010-I/P, the X9317WS8IZ-2.7T1 offers superior temperature stability (±20 ppm/°C ratiometric TC vs. ≥500 ppm/°C), guaranteed power-up recall without host intervention, and simpler 3-wire GPIO-compatible control-making it optimal for robust, self-contained analog trimming in industrial environments.
Availability
X9317WS8IZ-2.7T1 is available at Aetrix Electronics and suitable for LCD bias control, laser diode bias adjustment, voltage regulator output programming, and precision DC offset trimming requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for X9317WS8IZ-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 Corporation is a global semiconductor leader delivering microcontrollers, analog power, and SoC solutions for automotive, industrial, and infrastructure markets.
The X9317 family is designed for precision analog trimming in harsh environments-emphasizing nonvolatile retention, wide supply range (2.7–5.5 V), and industrial-grade reliability (100-year data retention, 100k endurance cycles).
FAQ
What is the operating temperature range for the X9317WS8IZ-2.7T1?
The X9317WS8IZ-2.7T1 is rated for industrial operation from –40°C to +85°C. This range is confirmed in the Ordering Information table (Page 2) and applies to all electrical specifications unless otherwise noted. The device uses temperature-compensated resistor elements and meets its full parameter guarantees-including ±1 MI linearity and ±20 ppm/°C ratiometric TC-across this entire span.
Does the X9317WS8IZ-2.7T1 retain its wiper position after power cycling?
Yes, the X9317WS8IZ-2.7T1 stores the wiper position in nonvolatile memory and automatically recalls it on power-up. This behavior is inherent to the device architecture and requires no external components or host initialization. The datasheet specifies 100-year data retention and 100,000 write cycles, ensuring reliable long-term calibration persistence in field-deployed systems.
What package type and footprint does the X9317WS8IZ-2.7T1 use?
The X9317WS8IZ-2.7T1 uses an 8-lead narrow-body SOIC package per JEDEC MS-012 (drawing M8.15E). Its dimensions are 4.90 mm × 3.90 mm × 1.75 mm max, with 1.27 mm lead pitch. The recommended land pattern and mechanical details are provided in Page 13 of the datasheet, and it is RoHS-compliant with matte tin (e3) termination.
How does the 3-wire interface of the X9317WS8IZ-2.7T1 work?
The X9317WS8IZ-2.7T1 uses CS (chip select), U/D (up/down), and INC (increment) signals. With CS low, each negative edge on INC moves the wiper one tap in the direction set by U/D (high = up, low = down). When CS rises while INC is high, the current position is stored to nonvolatile memory. No clock or data lines are needed-only three GPIOs suffice for full control.
What is the maximum wiper current rating for the X9317WS8IZ-2.7T1?
The X9317WS8IZ-2.7T1 supports a maximum wiper current (IW) of ±4.4 mA, as specified in the Absolute Maximum Ratings table (Page 4). This limit applies regardless of supply voltage (2.7 V or 5.5 V) and ensures safe operation when used as a variable resistor in current-setting applications such as laser diode bias or LED current control.
X9317WS8IZ-2.7T1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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-SOIC
- Operating Temperature:
- -40°C ~ 85°C
- Resistance - Wiper (Ohms) (Typ):
- 400
X9317WS8IZ-2.7T1 FAQ
1.How can I place an order for X9317WS8IZ-2.7T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9317WS8IZ-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 X9317WS8IZ-2.7T1 reliable?
The price and inventory of X9317WS8IZ-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 X9317WS8IZ-2.7T1 is usually 5 days.
3.What payment methods are accepted for X9317WS8IZ-2.7T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9317WS8IZ-2.7T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9317WS8IZ-2.7T1?
X9317WS8IZ-2.7T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9317WS8IZ-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 X9317WS8IZ-2.7T1?
For technical support, including X9317WS8IZ-2.7T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9317WS8IZ-2.7T1 requirements.
6.How does Aetrix verify that X9317WS8IZ-2.7T1 is sourced from the original manufacturer or authorized distributors?
All X9317WS8IZ-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 X9317WS8IZ-2.7T1 meets industry standards.
7.What is the process for return or replacement of X9317WS8IZ-2.7T1?
All X9317WS8IZ-2.7T1 units undergo pre-shipment inspection (PSI). If there is an issue with X9317WS8IZ-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 X9317WS8IZ-2.7T1 part is unused and in its original packaging.
Return procedure for X9317WS8IZ-2.7T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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