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Renesas X9317WM8
- Part No.:
- X9317WM8
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
X9317WM8.pdf
- Description:
- IC DGTL POT 10KOHM 100TAP 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,599
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Product details
Overview
X9317WM8 from Renesas Electronics is a digitally controlled potentiometer (XDCP™) implementing a 99-element resistor array with 100 wiper tap positions, nonvolatile wiper position storage, and 3-wire serial up/down interface. It operates as a three-terminal voltage divider or two-terminal variable resistor for precision DC bias adjustment in analog signal paths, with 10 kΩ end-to-end resistance, ±20% tolerance, and operation from 4.5 V to 5.5 V.
For engineers reviewing the X9317WM8 datasheet, X9317WM8 pinout, X9317WM8 application, or X9317WM8 equivalent, key selection considerations include its MSOP-8 package, nonvolatile memory retention (100 years), low standby current (<5 µA), temperature-compensated ratiometric performance (±20 ppm/°C), and compatibility with LCD bias control, laser diode biasing, and voltage regulator output trimming.
Technical Context
The X9317WM8 integrates a 7-bit up/down counter, decoder, and nonvolatile memory to control wiper position across 100 discrete taps. Its solid-state architecture eliminates mechanical wear and enables precise digital trim without external microcontroller firmware overhead.
Wiper movement follows make-before-break switching, ensuring continuity during transitions, while CS-triggered nonvolatile store operations require INC = HIGH at CS deactivation. The device supports both commercial (0°C to +70°C) and industrial (–40°C to +85°C) temperature ranges depending on suffix, with this variant rated for 0°C to +70°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-end resistance | 10 kΩ ±20% - defines maximum current handling and voltage division ratio accuracy in trim applications. |
| Wiper tap count | 100 positions - provides 1% resolution per step for fine analog calibration. |
| Supply voltage range | 4.5 V to 5.5 V - compatible with standard 5 V logic and analog rails; excludes 2.7 V variants. |
| Standby current | <5 µA - enables ultra-low-power operation during system sleep modes. |
| Nonvolatile retention | 100 years - ensures factory-set or field-trimmed values persist over product lifetime without battery backup. |
| Ratiometric tempco | ±20 ppm/°C - maintains stable voltage division ratio across temperature, critical for precision sensor biasing. |
| Wiper resistance | 200 Ω typical (at 5 V) - limits insertion error in high-impedance feedback paths. |
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 control line; toggling moves wiper up/down based on U/D state. |
| 2 (U/D) | Direction control input | Logic level determines wiper increment (+) or decrement (–) on each INC edge. |
| 3 (RH) | High terminal | Fixed end of resistor array; connected to higher potential in voltage divider configurations. |
| 4 (VSS) | Ground reference | Return path for supply and signal currents; must be low-impedance for noise immunity. |
| 5 (RW) | Wiper output | Movable terminal; delivers interpolated voltage between RH and RL; series resistance ≤400 Ω. |
| 6 (RL) | Low terminal | Fixed end of resistor array; connected to lower potential (e.g., ground) in voltage divider use. |
| 7 (CS) | Chip select | Active-low enable; HIGH initiates nonvolatile store if INC is also HIGH; LOW enables real-time wiper control. |
| 8 (VCC) | Positive supply | Power rail for internal logic and resistor array; must be stabilized before asserting CS or INC. |
Key Features
| Feature | Design Value |
|---|---|
| Solid-state potentiometer architecture | Eliminates mechanical wear and contact bounce, enabling >100,000 wiper adjustments with no degradation. |
| 3-wire serial interface | Requires only CS, U/D, and INC signals-no clock or data lines-reducing MCU GPIO usage and PCB routing complexity. |
| Nonvolatile wiper position storage | Automatically recalls last stored setting at power-up, eliminating need for boot-time calibration routines. |
| Temperature-compensated ratiometric performance | ±20 ppm/°C variation in RH–RW/RL–RW ratio ensures stable gain/offset trim across operating temperature range. |
| Low-power CMOS design | Standby current <5 µA and active current ≤80 µA allow integration into battery-powered instrumentation without significant drain. |
Applications
| LCD Bias Control | Laser Diode Bias Control |
|---|---|
Use Scenario: Adjusting VCOM voltage in TFT-LCD column drivers to minimize image flicker and improve contrast uniformity. IC Role / Device Role / Timing Role: Three-terminal voltage divider setting reference voltage for common electrode drive circuitry. Use Value: 100-tap resolution enables sub-millivolt bias tuning; nonvolatile storage preserves optimal settings across power cycles. |
Use Scenario: Setting precise bias current for edge-emitting laser diodes in optical transceivers and fiber modules. IC Role / Device Role / Timing Role: Two-terminal variable resistor in the feedback path of a constant-current source amplifier. Use Value: Low wiper resistance (200 Ω typ.) minimizes current-sense error; ±20 ppm/°C ratiometric stability maintains output accuracy over temperature. |
| Voltage Regulator Output Trim | DC Offset Adjustment in Instrumentation Amplifiers |
Use Scenario: Fine-tuning output voltage of adjustable LDOs or switching regulators to meet tight tolerance requirements (e.g., ±0.5%). IC Role / Device Role / Timing Role: Resistor in the feedback divider network of an adjustable regulator IC (e.g., TLV707, LM317). Use Value: 10 kΩ RTOTAL matches standard regulator feedback impedance targets; nonvolatile memory retains calibrated output value after manufacturing test. |
Use Scenario: Nulling input offset voltage in precision op-amp circuits used in medical sensors or strain gauge bridges. IC Role / Device Role / Timing Role: Adjustable resistor in the offset null port or feedback network of instrumentation amplifiers (e.g., INA128, AD620). Use Value: 1% step resolution allows sub-µV offset correction; low noise (–120 dBV ref 1 kHz) prevents injection of spurious signals into sensitive analog front ends. |
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, 256-tap resolution, 10 kΩ nominal, ±30% RTOTAL tolerance. | Supports dual independent pots in same package; requires I²C bus and pull-up resistors. | Preferred when multi-channel trimming or I²C system integration is required; not drop-in due to different interface and pinout. |
| MCP41010-I/P | Single-channel SPI interface, 256-tap resolution, 10 kΩ nominal, ±20% RTOTAL, 5.5 V max VDD. | Requires SPI clock/data lines and chip select; higher resolution but no nonvolatile store on power-up. | Chosen for SPI-based systems needing finer resolution; requires host firmware to reload wiper position after power cycle. |
Compared with X9317WM8, AD5243BRMZ10 offers dual-channel capability and I²C simplicity but lacks automatic power-up recall, while MCP41010-I/P delivers higher resolution via SPI but mandates external initialization-making X9317WM8 optimal for single-pot, low-pin-count, self-recalling analog trim in 5 V systems.
Availability
X9317WM8 is available at Aetrix Electronics and suitable for LCD bias control, laser diode biasing, and voltage regulator output trimming requiring stable component supply, long-term calibration retention, and RoHS-compliant packaging.
Supply support for X9317WM8 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 manufacturer specializing in microcontrollers, analog power devices, and timing solutions, with headquarters in Tokyo and design centers worldwide.
The X9317 series was developed as part of Renesas' XDCP™ family to replace mechanical potentiometers in precision analog trimming applications where reliability, programmability, and nonvolatile memory are essential.
FAQ
What is the operating temperature range for the X9317WM8?
The X9317WM8 is specified for commercial operation from 0°C to +70°C. This is confirmed by the Ordering Information table in the FN8183 Rev.10.01 datasheet, which lists X9317WM8Z and X9317WM8ZT1 variants under the "0 to +70" temperature range column. Industrial-grade variants (e.g., X9317WM8IZ) extend to –40°C to +85°C, but X9317WM8 does not include the 'I' suffix and therefore adheres to the commercial grade.
Does the X9317WM8 retain its wiper position after power cycling?
Yes, the X9317WM8 retains its last stored wiper position in nonvolatile memory and automatically recalls it upon power-up. This behavior is explicitly documented in the datasheet: "The position of the wiper can be stored in nonvolatile memory and then be recalled upon a subsequent power-up operation." Data retention is rated for 100 years under normal operating conditions.
What package type is used for the X9317WM8?
The X9317WM8 uses an 8-lead MSOP (Mini Small Outline Plastic) package, designated as M8.118 in Renesas' package drawings. This is confirmed in the Ordering Information table (page 2), where "X9317WM8Z" and "X9317WM8ZT1" entries specify "8 Ld MSOP" under PACKAGE DESCRIPTION, and the Pin Configurations section (page 3) shows the MSOP top view alongside SOIC and TSSOP variants.
Can the X9317WM8 operate from a 3.3 V supply?
No, the X9317WM8 is rated for VCC = 4.5 V to 5.5 V only. The datasheet specifies "X9317" (without -2.7 suffix) has VCC limits of 4.5 V to 5.5 V, while the -2.7 variants (e.g., X9317WM8Z-2.7) support 2.7 V to 5.5 V. Since X9317WM8 lacks the -2.7 suffix, it is not guaranteed to function correctly below 4.5 V and may fail to meet timing or wiper positioning specifications at 3.3 V.
How is nonvolatile storage triggered on the X9317WM8?
Nonvolatile storage on the X9317WM8 is triggered by raising CS from LOW to HIGH while the INC input is held HIGH. As stated in the Pin Descriptions section: "The current counter value is stored in nonvolatile memory when CS is returned HIGH while the INC input is also HIGH." This action initiates a ~5–10 ms store cycle, after which the device enters standby mode until next selected.
X9317WM8 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:
- 100
- 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:
- 0°C ~ 70°C
- Resistance - Wiper (Ohms) (Typ):
- 200
X9317WM8 FAQ
1.How can I place an order for X9317WM8 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9317WM8 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 reliable?
The price and inventory of X9317WM8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9317WM8 is usually 5 days.
3.What payment methods are accepted for X9317WM8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9317WM8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9317WM8?
X9317WM8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9317WM8 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?
For technical support, including X9317WM8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9317WM8 requirements.
6.How does Aetrix verify that X9317WM8 is sourced from the original manufacturer or authorized distributors?
All X9317WM8 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 meets industry standards.
7.What is the process for return or replacement of X9317WM8?
All X9317WM8 units undergo pre-shipment inspection (PSI). If there is an issue with X9317WM8, 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 part is unused and in its original packaging.
Return procedure for X9317WM8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
X9317WM8 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
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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
Microchip Technology
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MCP4021T-202E/SN
Microchip Technology
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MCP4023T-103E/CH
Microchip Technology
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MCP4022T-503E/CH
Microchip Technology
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MCP4551T-502E/MS
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