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Renesas X9317US8Z-2.7
- Part No.:
- X9317US8Z-2.7
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
X9317US8Z-2.7.pdf
- Description:
- IC DGTL POT 50KOHM 100TAP 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,521
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Product details
Overview
X9317US8Z-2.7 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 in standby, and uses a 3-wire up/down serial interface for voltage divider or variable resistor applications in precision analog trimming.
For engineers reviewing the X9317US8Z-2.7 datasheet, X9317US8Z-2.7 pinout, X9317US8Z-2.7 application, or X9317US8Z-2.7 equivalent, this device supports DC bias adjustment, laser diode bias control, gain/offset trim, and voltage regulator output control with temperature-compensated linearity and ratiometric stability.
Technical Context
The X9317US8Z-2.7 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 wiper positions, with nonvolatile memory storing the last position for automatic recall at power-up.
Control logic responds to CS (chip select), U/D (direction), and edge-triggered INC inputs. The device enters low-power standby when CS is high and supports store-on-CS-high-with-INC-high operation, ensuring deterministic initialization without external firmware intervention.
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 Resolution | 100 positions (0–99) - provides 1% step resolution for fine analog adjustment |
| Standby Current | <5 µA - minimizes quiescent power in battery-powered or always-on circuits |
| Nonvolatile Storage | 100-year data retention, 100,000 write cycles - eliminates need for external EEPROM or MCU backup |
| Linearity Error | ±1% absolute, ±0.2% relative - ensures predictable transfer function across temperature and supply |
| Temperature Coefficient | ±300 ppm/°C total resistance, ±20 ppm/°C ratiometric - maintains stable voltage division over -40°C to +70°C |
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 input | Logic level sets wiper movement direction during INC transitions |
| 3 (RH) | High terminal | Fixed end of resistor array; connects to higher potential in voltage divider configuration |
| 4 (VSS) | Ground reference | Return path for all internal circuitry and external analog connections |
| 5 (RW) | Wiper terminal | Movable contact point; series resistance ≤400 Ω at 2.7 V enables low-distortion signal routing |
| 6 (RL) | Low terminal | Fixed end of resistor array; connects to lower potential or ground in voltage divider |
| 7 (CS) | Chip select | Active-low enable; HIGH initiates nonvolatile store if INC is also HIGH |
| 8 (VCC) | Supply voltage | Power input for CMOS logic and resistor array; supports 2.7–5.5 V operation |
Key Features
| Feature | Design Value |
|---|---|
| Nonvolatile wiper position storage | Eliminates boot-time calibration; restores last-trimmed value automatically after power cycle |
| 3-wire serial up/down interface | Requires only three GPIOs-no SPI/I²C peripheral needed-reducing MCU resource usage |
| Make-before-break wiper switching | Prevents open-circuit transients during tap changes, critical for stable feedback loops |
| Temperature-compensated resistor array | ±20 ppm/°C ratiometric TC ensures consistent voltage division across operating temperature |
| Low-power CMOS design | Sub-5 µA standby current extends battery life in portable instrumentation and sensor nodes |
Applications
| LCD Bias Control | DC Bias Adjustment |
|---|---|
Use Scenario: Setting precise VCOM or gamma reference voltages in TFT-LCD panels. IC Role / Device Role / Timing Role: Three-terminal potentiometer configured as adjustable voltage divider between supply rails. Use Value: Enables factory calibration and dynamic contrast tuning without mechanical potentiometers or EEPROM-based DACs. |
Use Scenario: Compensating offset drift in op-amp front-ends or sensor signal chains. IC Role / Device Role / Timing Role: Two-terminal variable resistor in feedback or reference leg of precision amplifier circuits. Use Value: Provides repeatable, non-mechanical trimming with 0.2% relative linearity for long-term stability. |
| Laser Diode Bias Control | Voltage Regulator Output Control |
Use Scenario: Adjusting constant-current source setpoint for telecom or industrial laser drivers. IC Role / Device Role / Timing Role: Variable resistor in ISET node of laser driver ICs (e.g., LM3410, MAX3266). Use Value: Delivers 50 kΩ range with ±300 ppm/°C TC to maintain optical power accuracy over temperature. |
Use Scenario: Programming output voltage of adjustable LDOs or switching regulators (e.g., LM317, TLV755P). IC Role / Device Role / Timing Role: Resistor in R1/R2 feedback divider network to set regulated output voltage. Use Value: Allows remote, firmware-controlled voltage scaling without hardware modification or BOM change. |
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, ±20% tolerance, 100-year retention, but requires I²C bus and higher VCC min (2.7 V same) | Supports multi-device addressing and faster digital updates; less suitable for minimal-GPIO microcontrollers | Select when I²C infrastructure exists and higher resolution (0.4% step) is required over 3-wire simplicity |
| MCP45HV51-503 | 128-tap SPI interface, 50 kΩ, ±20% tolerance, 2.5–5.5 V supply, no nonvolatile store on power-up (requires init command) | Needs MCU firmware initialization at boot; lacks automatic recall, increasing system complexity | Choose when SPI is preferred and external memory or startup sequence can manage wiper restore |
Compared with AD5175BRMZ-50 and MCP45HV51-503, the X9317US8Z-2.7 delivers deterministic power-on behavior without firmware dependency, minimal GPIO count, and guaranteed wiper recall-making it optimal for cost-sensitive, low-pin-count embedded systems requiring hands-off analog calibration.
Availability
X9317US8Z-2.7 is available at Aetrix Electronics and suitable for LCD bias control, laser diode bias adjustment, and voltage regulator output programming requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for X9317US8Z-2.7 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 family was designed specifically for solid-state replacement of mechanical potentiometers in precision analog trimming applications where reliability, nonvolatility, and low power are critical.
FAQ
What is the operating voltage range for the X9317US8Z-2.7?
The X9317US8Z-2.7 operates from 2.7 V to 5.5 V, supporting both 3.3 V and 5 V logic systems without external regulation. This range is explicitly specified in the Absolute Maximum Ratings and Potentiometer Specifications tables of the FN8183 datasheet, and applies across its 0°C to +70°C commercial temperature range.
Does the X9317US8Z-2.7 retain its wiper position after power loss?
Yes, the X9317US8Z-2.7 stores the wiper position in nonvolatile memory with 100-year data retention and supports automatic recall at power-up. This behavior is inherent to the device architecture and requires no external components or MCU intervention-confirmed in the "Principles of Operation" and "Power-up and Down Requirements" sections of the datasheet.
How many wiper positions does the X9317US8Z-2.7 support?
The X9317US8Z-2.7 supports exactly 100 discrete wiper tap positions (0 through 99), corresponding to a 99-resistor-element array. This is stated in the device description, block diagram caption, and "Potentiometer Specifications" table, and defines its 1% step resolution for analog adjustment tasks.
What package type is used for the X9317US8Z-2.7?
The X9317US8Z-2.7 uses an 8-lead narrow-body SOIC package (JEDEC MS-012, drawing M8.15E), RoHS-compliant, with dimensions 4.90 mm × 3.90 mm × 1.75 mm max. This is confirmed in the "Ordering Information" table on page 2 and the "Package Outline Drawings" section on page 13 of FN8183 Rev.10.01.
Can the X9317US8Z-2.7 be used as a two-terminal variable resistor?
Yes, the X9317US8Z-2.7 can operate as a two-terminal variable resistor by connecting either RH or RL to RW and using the remaining terminal with RW. The datasheet explicitly states this capability in the first paragraph and illustrates it in Figure 4 ("Two Terminal Variable Resistor; Variable Current"), confirming full functionality in both 2-terminal and 3-terminal configurations.
X9317US8Z-2.7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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-2.7 FAQ
1.How can I place an order for X9317US8Z-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9317US8Z-2.7 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-2.7 reliable?
The price and inventory of X9317US8Z-2.7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9317US8Z-2.7 is usually 5 days.
3.What payment methods are accepted for X9317US8Z-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9317US8Z-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9317US8Z-2.7?
X9317US8Z-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9317US8Z-2.7 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-2.7?
For technical support, including X9317US8Z-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9317US8Z-2.7 requirements.
6.How does Aetrix verify that X9317US8Z-2.7 is sourced from the original manufacturer or authorized distributors?
All X9317US8Z-2.7 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-2.7 meets industry standards.
7.What is the process for return or replacement of X9317US8Z-2.7?
All X9317US8Z-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with X9317US8Z-2.7, 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-2.7 part is unused and in its original packaging.
Return procedure for X9317US8Z-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
X9317US8Z-2.7 Tags
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