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Renesas X9317WM8IZ-2.7T1
- Part No.:
- X9317WM8IZ-2.7T1
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
X9317WM8IZ-2.7T1.pdf
- Description:
- IC DGTL POT 10KOHM 100TAP 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,922
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Product details
Overview
X9317WM8IZ-2.7T1 from Renesas Electronics is a digitally controlled potentiometer (XDCP™) with 100 wiper tap points, nonvolatile wiper position storage, and 2.7V–5.5V supply operation. It implements a 99-element resistor array with temperature-compensated end-to-end resistance (±20% tolerance), 10 kΩ total resistance, and low standby current (<5 µA). It serves as a three-terminal voltage divider or two-terminal variable resistor in precision analog trimming applications.
For engineers reviewing the X9317WM8IZ-2.7T1 datasheet, X9317WM8IZ-2.7T1 pinout, X9317WM8IZ-2.7T1 application, or X9317WM8IZ-2.7T1 equivalent, this device supports industrial-grade (-40°C to +85°C) operation in MSOP-8 packaging, features a 3-wire up/down serial interface, and delivers ±1 MI absolute linearity and -120 dBV noise performance for high-fidelity bias and gain control.
Technical Context
The X9317WM8IZ-2.7T1 integrates a 7-bit up/down counter, decoder, and nonvolatile memory to control wiper position across 100 discrete taps. Its resistor array uses temperature-compensated elements yielding ±300 ppm/°C total resistance drift and ±20 ppm/°C ratiometric coefficient - critical for stable voltage division under thermal variation.
Wiper movement follows make-before-break switching, ensuring continuity during transitions, while CS-controlled nonvolatile store enables power-up recall of last-set position. The device operates with VCC = 2.7V–5.5V, supports 1 µs INC-to-RW response, and maintains <400 Ω wiper resistance at 2.7V supply - enabling reliable low-voltage analog tuning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-end Resistance | 10 kΩ ±20% - defines full-scale analog range for voltage divider or current-limiting configurations. |
| 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 Tap Resolution | 100 positions (0–99) - provides 1% step resolution for fine-grained analog adjustment. |
| Standby Current | <5 µA - minimizes quiescent power in battery-powered or always-on trim circuits. |
| Absolute Linearity | ±1 MI (Minimum Increment) - ensures ≤1% deviation from ideal voltage division across full range. |
| Wiper Resistance | 400 Ω max at 2.7 V - limits signal path error and loading effect in low-voltage sensor interfaces. |
| Nonvolatile Endurance | 100,000 data changes per bit - supports long-term field calibration without wear-out concerns. |
| Operating Temperature | -40°C to +85°C - qualified for industrial ambient conditions without derating. |
Pinout & Package
Package: 8-lead MSOP (M8.118), RoHS-compliant, moisture sensitivity level (MSL) 1, thermal resistance θJA = 145°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (INC) | Increment clock input | Negative-edge-triggered control signal; toggling moves wiper up/down based on U/D state. |
| 2 (U/D) | Direction control input | Logic level selects wiper movement direction (HIGH = up, LOW = down) during INC transition. |
| 3 (RH) | High terminal | Fixed end of resistor array; connects to higher-potential node in voltage divider configuration. |
| 4 (VSS) | Ground reference | System ground return for internal logic and resistor array; must be low-impedance. |
| 5 (RW) | Wiper output | Movable terminal; delivers tapped voltage/current; series resistance ≤400 Ω at 2.7 V. |
| 6 (RL) | Low terminal | Fixed end of resistor array; connects to lower-potential node (e.g., ground or negative rail). |
| 7 (CS) | Chip select | Active-low enable; HIGH initiates nonvolatile store when INC is also HIGH; LOW enables control. |
| 8 (VCC) | Power supply | 2.7–5.5 V analog/digital supply; powers internal logic, memory, and resistor array. |
Key Features
| Feature | Design Value |
|---|---|
| Nonvolatile wiper position storage | Retains last-set tap position across power cycles; eliminates need for external EEPROM or MCU initialization. |
| Temperature-compensated resistor array | ±300 ppm/°C total resistance drift ensures stable gain/offset trim over industrial temperature range. |
| Make-before-break wiper switching | Prevents open-circuit transients during tap transitions - critical for uninterrupted bias in amplifier feedback paths. |
| Low-noise analog performance | -120 dBV noise (1 kHz reference) enables use in precision sensor conditioning and audio-level bias circuits. |
| 3-wire serial interface | Requires only CS, U/D, and INC signals - simplifies MCU GPIO usage and avoids SPI/I²C protocol overhead. |
| Industrial temperature rating | -40°C to +85°C operation validated per datasheet; supports deployment in automotive cabin, industrial PLC, and telecom equipment. |
Applications
| LCD Bias Control | Laser Diode Bias Control |
|---|---|
Use Scenario: Adjusting VCOM or gamma voltage in TFT-LCD panels to maintain consistent contrast and grayscale across temperature. IC Role / Device Role / Timing Role: Three-terminal potentiometer providing precise, stable DC bias voltage referenced to panel supply rails. Use Value: Nonvolatile storage ensures factory-calibrated gamma settings persist after power cycling; ±1 MI linearity prevents visible banding artifacts. |
Use Scenario: Setting precise forward current for edge-emitting laser diodes in fiber-optic transceivers or industrial sensors. IC Role / Device Role / Timing Role: Two-terminal variable resistor in constant-current source feedback loop to regulate laser drive current. Use Value: 10 kΩ RTOTAL and low wiper resistance minimize thermal drift-induced current error; -40°C to +85°C rating matches optical module operating envelope. |
| Voltage Regulator Output Trim | DC Offset Adjustment in Instrumentation Amplifiers |
Use Scenario: Fine-tuning output voltage of adjustable LDOs or switching regulators in power management subsystems. IC Role / Device Role / Timing Role: Three-terminal potentiometer replacing mechanical trimmer in feedback divider network of regulator IC. Use Value: 2.7 V minimum supply allows direct use with low-VOUT regulators; ±20% RTOTAL tolerance accommodates standard feedback resistor ratios. |
Use Scenario: Nulling input offset voltage in precision instrumentation amplifiers used in medical ECG or strain-gauge signal chains. IC Role / Device Role / Timing Role: Two-terminal variable resistor in offset null port, adjusting differential input balance. Use Value: -120 dBV noise prevents injection of audible or measurement-band interference; 100-tap resolution enables sub-mV offset correction. |
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 | 256-tap I²C interface; 10 kΩ; 2.7–5.5 V; ±30% RTOTAL tolerance; no nonvolatile store in basic version. | Requires I²C host and external EEPROM for persistent settings; higher resolution but less deterministic startup behavior. | Choose AD5170BRMZ-10 if I²C bus availability and finer 0.39% step resolution outweigh need for guaranteed power-up repeatability. |
| MCP41010-I/P | 100-tap SPI interface; 10 kΩ; 2.7–5.5 V; ±20% RTOTAL; volatile wiper register only (no NV memory). | Needs MCU firmware to reload wiper position at boot; lacks autonomous power-up recall capability. | Choose MCP41010-I/P where SPI is preferred and system-level initialization can guarantee repeatable startup state. |
Compared with AD5170BRMZ-10 and MCP41010-I/P, the X9317WM8IZ-2.7T1 uniquely combines guaranteed power-up wiper recall, 3-wire simplicity, and industrial temperature support - eliminating firmware dependencies and interface complexity in embedded analog tuning.
Availability
X9317WM8IZ-2.7T1 is available at Aetrix Electronics and suitable for LCD bias control, laser diode biasing, and voltage regulator output trimming requiring stable component supply across industrial temperature ranges and long product lifecycles.
Supply support for X9317WM8IZ-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 connectivity solutions for automotive, industrial, and IoT applications.
The X9317WM8IZ-2.7T1 belongs to Renesas' XDCP™ (Digitally Controlled Potentiometer) family, designed specifically for replacing mechanical trimmers in high-reliability analog signal conditioning and power management circuits.
FAQ
What is the guaranteed power-up behavior of the X9317WM8IZ-2.7T1?
The X9317WM8IZ-2.7T1 automatically recalls the last stored wiper position from nonvolatile memory within 5 µs after VCC stabilizes. This behavior is guaranteed across its full -40°C to +85°C operating range and requires no external initialization. The X9317WM8IZ-2.7T1 achieves deterministic startup without MCU intervention, making it ideal for safety-critical or unattended systems where analog settings must be preserved across power loss.
Does the X9317WM8IZ-2.7T1 support true 3-wire operation without additional control lines?
Yes, the X9317WM8IZ-2.7T1 operates exclusively with three digital control lines: CS (chip select), U/D (up/down direction), and INC (increment clock). No separate reset, write-enable, or address lines are required. Its 3-wire interface is self-synchronizing and deterministic - each negative edge on INC advances the wiper one tap in the direction set by U/D while CS is low. This eliminates protocol overhead and reduces MCU GPIO count compared to SPI or I²C DCPs.
How does the X9317WM8IZ-2.7T1 handle wiper movement during rapid successive INC toggles?
The X9317WM8IZ-2.7T1 uses make-before-break switching during wiper transitions, meaning multiple taps connect briefly to RW during movement. When toggled rapidly, the effective RTOTAL may temporarily drop due to parallel conduction paths - a known behavior documented in the datasheet's "Principles of Operation" section. For stable analog performance, allow ≥2 µs between INC edges (tCYC), and avoid multi-step adjustments in time-critical signal paths unless transient loading is acceptable.
What is the maximum allowable voltage across RH and RL terminals of the X9317WM8IZ-2.7T1?
The X9317WM8IZ-2.7T1 specifies RH and RL terminal voltage range as 0 V to VCC (i.e., VSS ≤ VRH/RL ≤ VCC), with absolute maximum rating of +6 V relative to VSS. Applying voltage beyond VCC risks exceeding internal junction limits and may cause irreversible damage. In practice, the device is intended for use within its supply rails - for example, with RH = VCC and RL = VSS in standard voltage divider configurations - and is not rated for floating or reverse-biased terminal operation.
Can the X9317WM8IZ-2.7T1 be used in AC-coupled signal paths?
No, the X9317WM8IZ-2.7T1 is designed strictly for DC and low-frequency analog biasing - not AC signal routing. Its potentiometer capacitances (CH = CL = 10 pF, CW = 25 pF) and lack of specified AC bandwidth or THD performance preclude use in audio or RF signal paths. However, it is well-suited for setting DC operating points in amplifier stages, regulator feedback networks, and sensor excitation circuits where stable, low-drift DC levels are required - precisely the role defined for the X9317WM8IZ-2.7T1 in its datasheet Applications section.
X9317WM8IZ-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:
- 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-MSOP
- Operating Temperature:
- -40°C ~ 85°C
- Resistance - Wiper (Ohms) (Typ):
- 400
X9317WM8IZ-2.7T1 FAQ
1.How can I place an order for X9317WM8IZ-2.7T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9317WM8IZ-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 X9317WM8IZ-2.7T1 reliable?
The price and inventory of X9317WM8IZ-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 X9317WM8IZ-2.7T1 is usually 5 days.
3.What payment methods are accepted for X9317WM8IZ-2.7T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9317WM8IZ-2.7T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9317WM8IZ-2.7T1?
X9317WM8IZ-2.7T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9317WM8IZ-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 X9317WM8IZ-2.7T1?
For technical support, including X9317WM8IZ-2.7T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9317WM8IZ-2.7T1 requirements.
6.How does Aetrix verify that X9317WM8IZ-2.7T1 is sourced from the original manufacturer or authorized distributors?
All X9317WM8IZ-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 X9317WM8IZ-2.7T1 meets industry standards.
7.What is the process for return or replacement of X9317WM8IZ-2.7T1?
All X9317WM8IZ-2.7T1 units undergo pre-shipment inspection (PSI). If there is an issue with X9317WM8IZ-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 X9317WM8IZ-2.7T1 part is unused and in its original packaging.
Return procedure for X9317WM8IZ-2.7T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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