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Renesas X9317US8IZ-2.7T1
- Part No.:
- X9317US8IZ-2.7T1
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
X9317US8IZ-2.7T1.pdf
- Description:
- IC DGTL POT 50KOHM 100TAP 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,373
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Product details
Overview
X9317US8IZ-2.7T1 from Renesas Electronics is a digitally controlled potentiometer (XDCP™) with 100 wiper tap points, nonvolatile wiper position storage, and 50 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 interface for voltage divider or variable resistor applications in precision analog trimming circuits.
For engineers reviewing the X9317US8IZ-2.7T1 datasheet, X9317US8IZ-2.7T1 pinout, X9317US8IZ-2.7T1 application, or X9317US8IZ-2.7T1 equivalent, this page delivers verified specifications, SOIC-8 package details, real-world use cases in DC bias adjustment and laser diode control, and two confirmed alternative parts with functional and application-level distinctions.
Technical Context
The X9317US8IZ-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, each corresponding to a 1% resolution step across the full resistance range.
Wiper position is stored in nonvolatile memory upon CS↑ while INC = HIGH, ensuring automatic recall at power-up. The device supports both three-terminal potentiometer (voltage divider) and two-terminal variable resistor (current control) configurations, with RH/RL terminals rated for ±6 V and RW wiper resistance specified at 400–1000 Ω depending on supply voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-end Resistance (RTOTAL) | 50 kΩ ±20% - defines maximum adjustable resistance range for gain/offset trim 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 |
| Standby Current | <5 µA - ensures minimal power impact in battery-powered or always-on analog subsystems |
| Wiper Resistance (RW) | 400–1000 Ω at VCC = 2.7 V - directly affects insertion loss and signal integrity in high-impedance feedback paths |
| Resolution | 1% (100 taps) - provides fine-grained analog tuning suitable for laser diode bias calibration |
| Nonvolatile Memory Endurance | 100,000 write cycles - supports repeated field calibration without wear-out concerns |
| Temperature Range | –40°C to +85°C - qualified for industrial-grade operation in embedded control and sensing environments |
Pinout & Package
Package: 8-lead narrow-body SOIC (M8.15E), RoHS-compliant, surface-mountable with standard JEDEC MS-012 footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (INC) | Increment clock input | Negative-edge-triggered control line; toggling moves wiper up/down per U/D state |
| 2 (U/D) | Direction control input | Logic level determines wiper movement direction during INC transition |
| 3 (RH) | High terminal | Fixed end of resistor array; connects to higher-potential node in voltage divider |
| 4 (VSS) | Ground reference | Primary return path for internal logic and analog array; must be low-impedance |
| 5 (RW) | Wiper output | Movable terminal; delivers tapped voltage or adjustable resistance point to external circuit |
| 6 (RL) | Low terminal | Fixed end of resistor array; connects to lower-potential or ground-referenced node |
| 7 (CS) | Chip select | Active-low enable; initiates wiper movement when LOW, triggers NV store on rising edge with INC = HIGH |
| 8 (VCC) | Supply voltage | Power rail for logic and analog sections; supports 2.7–5.5 V operation with <5 µA standby draw |
Key Features
| Feature | Design Value |
|---|---|
| Solid-state potentiometer architecture | Eliminates mechanical wear, contact bounce, and environmental drift-ideal for sealed or high-vibration systems |
| Nonvolatile wiper position storage | Ensures repeatable startup behavior without host MCU initialization; critical for safety-critical bias settings |
| Temperature-compensated resistor array | ±300 ppm/°C total resistance TC and ±20 ppm/°C ratiometric TC preserve voltage division accuracy over temperature |
| Make-before-break wiper switching | Prevents open-circuit transients during tap changes-essential for stable feedback loops in amplifiers and regulators |
| Low-noise performance | –120 dBV noise floor (1 kHz ref) minimizes injection into sensitive analog signal paths like sensor front-ends |
Applications
| LCD Bias Control | DC Bias Adjustment |
|---|---|
Use Scenario: Setting precise VCOM voltage for TFT-LCD panel gamma correction. IC Role / Device Role / Timing Role: Three-terminal potentiometer configuring a programmable voltage divider referenced to VDD and ground. Use Value: Enables factory calibration and dynamic contrast tuning without manual trimpots or EEPROM-based DACs. |
Use Scenario: Fine-tuning op-amp input offset voltage in precision instrumentation amplifiers. IC Role / Device Role / Timing Role: Two-terminal variable resistor in the amplifier's feedback network to adjust gain and null residual offset. Use Value: Achieves sub-mV offset correction with 1% resolution and retains setting across power cycles. |
| Laser Diode Bias Control | Voltage Regulator Output Control |
Use Scenario: Adjusting constant-current source setpoint for telecom laser diodes requiring stable optical output power. IC Role / Device Role / Timing Role: Two-terminal variable resistor in the IADJ path of an LM317-type regulator used as a current source. Use Value: Provides digitally programmable, nonvolatile bias current with <5 µA quiescent draw-critical for low-power modules. |
Use Scenario: Dynamically scaling output voltage of a fixed-feedback LDO in adaptive power management systems. IC Role / Device Role / Timing Role: Three-terminal potentiometer replacing R1/R2 resistive divider in adjustable regulator feedback loop. Use Value: Allows firmware-controlled voltage scaling (e.g., 1.8 V → 3.3 V) without hardware change or external DAC. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digitally controlled potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5241BRMZ50 | Single-channel, I²C interface; 50 kΩ; 256-tap resolution; 2.7–5.5 V operation | Requires I²C master and address configuration; lacks nonvolatile store-on-power-up default behavior | Preferred when system already uses I²C bus and higher resolution (0.39%) is needed over simplicity of up/down interface |
| MCP41050-I/P | Single-channel, SPI interface; 50 kΩ; 256-tap resolution; 2.7–5.5 V; volatile wiper register only | No nonvolatile memory-wiper resets to mid-scale on power-up unless host reinitializes | Chosen where SPI is available and host MCU handles calibration persistence; avoids NV memory wear limits |
Compared with AD5241BRMZ50 and MCP41050-I/P, the X9317US8IZ-2.7T1 offers deterministic power-up behavior without host intervention, simpler 3-wire control timing, and guaranteed 100-year data retention-making it optimal for unattended or safety-critical analog trimming where reliability and zero-initialization overhead matter most.
Availability
X9317US8IZ-2.7T1 is available at Aetrix Electronics and suitable for LCD bias control, laser diode biasing, voltage regulator output scaling, and precision DC offset trimming requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for X9317US8IZ-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 strong emphasis on reliability and long-term support.
The X9317 series is part of Renesas' XDCP™ (eXternally Digitally Controlled Potentiometer) family, designed specifically for replacing mechanical potentiometers in analog signal conditioning, power management, and calibration-critical systems where nonvolatility, low power, and solid-state robustness are mandatory.
FAQ
What is the operating voltage range for the X9317US8IZ-2.7T1?
The X9317US8IZ-2.7T1 operates from 2.7 V to 5.5 V, supporting both 3.3 V and 5 V systems without external regulation. This extended low-voltage capability enables direct integration into battery-powered or energy-constrained designs while maintaining full functionality-including nonvolatile store and 100-tap resolution-across the entire range.
Does the X9317US8IZ-2.7T1 retain its wiper position after power cycling?
Yes, the X9317US8IZ-2.7T1 stores the last wiper position in nonvolatile memory and automatically recalls it on power-up. This behavior is inherent to the device architecture and requires no host MCU intervention, making X9317US8IZ-2.7T1 ideal for applications where consistent startup conditions are essential-such as laser driver bias or sensor calibration offsets.
How many wiper positions does the X9317US8IZ-2.7T1 support, and what is its resolution?
The X9317US8IZ-2.7T1 supports exactly 100 discrete wiper positions across its 50 kΩ resistor array, yielding 1% resolution per step. This is implemented via a 99-element linear array and a 7-bit counter-driven decoder, with each tap representing a fixed 1/99 increment of the total end-to-end resistance-enabling predictable, repeatable analog adjustments.
What package type is used for the X9317US8IZ-2.7T1, and is it RoHS-compliant?
The X9317US8IZ-2.7T1 uses an 8-lead narrow-body SOIC package (JEDEC MS-012, drawing M8.15E) with 1.27 mm lead pitch. It is fully RoHS-compliant, featuring 100% matte tin plating and Pb-free molding compounds, and is qualified for standard reflow profiles including Pb-free peak temperatures per IPC/JEDEC J-STD-020.
Can the X9317US8IZ-2.7T1 be used as both a potentiometer and a rheostat?
Yes, the X9317US8IZ-2.7T1 supports both configurations: as a three-terminal potentiometer (RH–RW–RL) for voltage division, and as a two-terminal variable resistor (e.g., RH–RW or RW–RL) for current control. Its internal architecture allows either mode without modification, and the datasheet provides validated circuit examples for both-including laser diode biasing and adjustable voltage regulators.
X9317US8IZ-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):
- 50k
- 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
X9317US8IZ-2.7T1 FAQ
1.How can I place an order for X9317US8IZ-2.7T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9317US8IZ-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 X9317US8IZ-2.7T1 reliable?
The price and inventory of X9317US8IZ-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 X9317US8IZ-2.7T1 is usually 5 days.
3.What payment methods are accepted for X9317US8IZ-2.7T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9317US8IZ-2.7T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9317US8IZ-2.7T1?
X9317US8IZ-2.7T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9317US8IZ-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 X9317US8IZ-2.7T1?
For technical support, including X9317US8IZ-2.7T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9317US8IZ-2.7T1 requirements.
6.How does Aetrix verify that X9317US8IZ-2.7T1 is sourced from the original manufacturer or authorized distributors?
All X9317US8IZ-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 X9317US8IZ-2.7T1 meets industry standards.
7.What is the process for return or replacement of X9317US8IZ-2.7T1?
All X9317US8IZ-2.7T1 units undergo pre-shipment inspection (PSI). If there is an issue with X9317US8IZ-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 X9317US8IZ-2.7T1 part is unused and in its original packaging.
Return procedure for X9317US8IZ-2.7T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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