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Renesas X9317US8Z-2.7T1
- Part No.:
- X9317US8Z-2.7T1
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
X9317US8Z-2.7T1.pdf
- Description:
- IC DGTL POT 50KOHM 100TAP 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,618
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Product details
Overview
X9317US8Z-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 X9317US8Z-2.7T1 datasheet, X9317US8Z-2.7T1 pinout, X9317US8Z-2.7T1 application, or X9317US8Z-2.7T1 equivalent, this device supports DC bias adjustment, laser diode bias control, gain/offset trim, and voltage regulator output tuning - all with power-up recall of last stored wiper position and ±20% RTOTAL tolerance.
Technical Context
The X9317US8Z-2.7T1 implements a 99-element resistor array with make-before-break wiper switching, enabling glitch-free transitions between 100 discrete tap positions. Its 7-bit counter and decoder drive the wiper under CS/U/D/INC control, with nonvolatile memory storing position across power cycles.
It features temperature-compensated resistance (±300 ppm/°C total coefficient), ratiometric stability (±20 ppm/°C), and low-noise operation (–120 dBV ref 1 kHz). Wiper resistance is 400 Ω typical at 2.7 V supply, supporting precise current/voltage control without external buffering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-end resistance | 50 kΩ ±20% - defines full-scale analog range for voltage division or current limiting |
| 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 count | 100 positions - provides 1% resolution per step for fine-grained analog calibration |
| Standby current | <5 µA - minimizes quiescent power in battery-powered or always-on trimming circuits |
| Nonvolatile storage | 100-year data retention, 100,000 write cycles - ensures long-term calibration stability without backup power |
| Wiper resistance | 400 Ω max at 2.7 V - limits voltage error in high-impedance divider configurations |
| Temperature coefficient | ±300 ppm/°C (absolute), ±20 ppm/°C (ratiometric) - maintains linearity across industrial temperature range |
Pinout & Package
Package: 8-lead SOIC (M8.15E), RoHS-compliant, commercial temperature range (0°C to +70°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (INC) | Increment clock input | Negative-edge-triggered control signal; toggling moves wiper up/down per U/D state |
| 2 (U/D) | Direction control | Logic level selects wiper increment (+) or decrement (–) on each INC edge |
| 3 (RH) | High terminal | Fixed end of resistor array; connects to higher potential in voltage divider mode |
| 4 (VSS) | Ground reference | Return path for supply and signal; must be low-impedance for noise-sensitive analog use |
| 5 (RW) | Wiper terminal | Movable contact point; outputs intermediate voltage or sets variable resistance between RH/RL |
| 6 (RL) | Low terminal | Fixed end of resistor array; connects to lower potential (e.g., ground or negative rail) |
| 7 (CS) | Chip select | Active-low enable; HIGH while INC = HIGH triggers nonvolatile store of current wiper position |
| 8 (VCC) | Power supply | 2.7 V–5.5 V CMOS supply; powers logic and resistor array; decoupling required near pin |
Key Features
| Feature | Design Value |
|---|---|
| Nonvolatile wiper position storage | Recalls last set tap position on power-up - eliminates need for host MCU initialization or EEPROM lookup |
| 3-wire serial up/down interface | Requires only three GPIOs (CS, U/D, INC) - avoids SPI/I²C overhead and simplifies firmware for basic trimming |
| Make-before-break wiper switching | Prevents open-circuit glitches during tap transitions - critical for stable biasing in amplifiers or regulators |
| Low-noise analog performance | –120 dBV noise floor (1 kHz ref) - suitable for precision sensor signal conditioning and audio bias networks |
| Temperature-compensated resistor array | ±20 ppm/°C ratiometric TC - preserves voltage division ratio across temperature without software correction |
Applications
| LCD Bias Control | DC Bias Adjustment |
|---|---|
|
Use Scenario: Setting optimal VCOM voltage for TFT-LCD panels to minimize image flicker and ghosting. IC Role / Device Role / Timing Role: Three-terminal potentiometer providing adjustable DC offset between panel driver IC and common electrode. Use Value: Enables factory calibration and field recalibration without mechanical potentiometers; retains setting across power cycles. |
Use Scenario: Fine-tuning input bias voltage of op-amps or comparators in sensor front-ends. IC Role / Device Role / Timing Role: Two-terminal variable resistor in Thévenin-equivalent bias network to adjust DC operating point. Use Value: Achieves sub-10 mV precision over temperature using ratiometric stability and nonvolatile recall. |
| Laser Diode Bias Control | Voltage Regulator Output Control |
|
Use Scenario: Setting precise threshold and modulation current for fiber-optic transceivers. IC Role / Device Role / Timing Role: Adjustable current-limiting element in laser driver feedback loop. Use Value: Supports dynamic recalibration for aging compensation; 100-kΩ version avoids loading high-gain current sense nodes. |
Use Scenario: Adjusting output voltage of adjustable LDOs (e.g., LM317) or DC-DC controllers. IC Role / Device Role / Timing Role: Voltage divider element feeding FB/ADJ pin to set regulated output level. Use Value: Enables remote digital tuning and factory-programmed output voltages; 50 kΩ value matches typical FB network impedances. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digitally controlled potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5175BRMZ-50 | 256-tap I²C interface, 50 kΩ, ±30% RTOTAL, 100-year retention, but requires I²C bus and pull-ups | Higher resolution but adds protocol overhead; less suitable for simple GPIO-based trimming | Choose when I²C infrastructure exists and finer 0.39% steps are needed over 1% X9317US8Z-2.7T1 resolution |
| MCP45HV51-503 | 256-tap SPI interface, 50 kΩ, ±20% RTOTAL, 1.8–5.5 V supply, but no nonvolatile store on power-up | Requires host MCU to reload wiper position after every power cycle | Choose when SPI is preferred and system firmware can manage persistent state externally |
Compared with AD5175BRMZ-50 and MCP45HV51-503, the X9317US8Z-2.7T1 delivers simpler GPIO-based control, guaranteed power-up recall without host intervention, and optimized low-power operation - making it ideal for cost-sensitive, firmware-light analog trimming where 1% resolution suffices.
Availability
X9317US8Z-2.7T1 is available at Aetrix Electronics and suitable for LCD bias control, laser diode biasing, voltage regulator output tuning, and precision DC offset adjustment requiring stable component supply across industrial production lifecycles.
Supply support for X9317US8Z-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.
The X9317 series is part of Renesas' XDCP™ family designed specifically for replacing mechanical potentiometers in precision analog trimming, offering nonvolatile storage, low power, and robust temperature performance in compact packages.
FAQ
What is the supply voltage range for the X9317US8Z-2.7T1?
The X9317US8Z-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 distinguishes it from standard 5 V-only variants like the X9317WS8Z, enabling direct integration into modern low-power designs while maintaining full functionality including nonvolatile store and 100-tap resolution.
Does the X9317US8Z-2.7T1 retain its wiper position after power loss?
Yes, the X9317US8Z-2.7T1 stores the wiper position in nonvolatile memory with 100-year data retention and 100,000 write cycles. Upon power-up, it automatically recalls the last stored position - no host MCU initialization or external memory access is required. This behavior is guaranteed across its 0°C to +70°C commercial temperature range.
How many wiper positions does the X9317US8Z-2.7T1 support?
The X9317US8Z-2.7T1 provides exactly 100 discrete wiper tap positions, corresponding to a 1% resolution step size across its 50 kΩ end-to-end resistance. This is implemented via a 99-resistor-element array with switches at each node and both ends, and is confirmed in the device's block diagram, timing specifications, and ordering information tables.
What package type is used for the X9317US8Z-2.7T1?
The X9317US8Z-2.7T1 is packaged in an 8-lead narrow-body SOIC (M8.15E), RoHS-compliant, with dimensions 4.90 mm × 3.90 mm × 1.75 mm max. This footprint matches industry-standard SOIC-8 layouts and is verified in the "Ordering Information" table and Package Outline Drawing M8.15E on page 13 of the datasheet.
Can the X9317US8Z-2.7T1 be used as a two-terminal variable resistor?
Yes, the X9317US8Z-2.7T1 can operate as a two-terminal variable resistor by connecting either RH or RL to RW (wiper), effectively creating an adjustable resistance between the remaining fixed terminal and wiper. This configuration is explicitly supported in the datasheet's "Basic Configurations" section (Figure 4) and used in applications like laser diode current limiting and gain-setting networks.
X9317US8Z-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:
- 0°C ~ 70°C
- Resistance - Wiper (Ohms) (Typ):
- 400
X9317US8Z-2.7T1 FAQ
1.How can I place an order for X9317US8Z-2.7T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9317US8Z-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 X9317US8Z-2.7T1 reliable?
The price and inventory of X9317US8Z-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 X9317US8Z-2.7T1 is usually 5 days.
3.What payment methods are accepted for X9317US8Z-2.7T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9317US8Z-2.7T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9317US8Z-2.7T1?
X9317US8Z-2.7T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9317US8Z-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 X9317US8Z-2.7T1?
For technical support, including X9317US8Z-2.7T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9317US8Z-2.7T1 requirements.
6.How does Aetrix verify that X9317US8Z-2.7T1 is sourced from the original manufacturer or authorized distributors?
All X9317US8Z-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 X9317US8Z-2.7T1 meets industry standards.
7.What is the process for return or replacement of X9317US8Z-2.7T1?
All X9317US8Z-2.7T1 units undergo pre-shipment inspection (PSI). If there is an issue with X9317US8Z-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 X9317US8Z-2.7T1 part is unused and in its original packaging.
Return procedure for X9317US8Z-2.7T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
X9317US8Z-2.7T1 Tags
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MCP4011T-103E/SN
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