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Renesas X9317UV8I-2.7
- Part No.:
- X9317UV8I-2.7
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
X9317UV8I-2.7.pdf
- Description:
- IC DGTL POT 50KOHM 100TAP 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,216
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Product details
Overview
X9317UV8I-2.7 from Renesas Electronics is a digitally controlled potentiometer (XDCP™) with 100-tap resolution, nonvolatile wiper position storage, and 2.7V–5.5V supply operation. It implements a 99-element resistor array with make-before-break switching, delivers ±20% end-to-end resistance tolerance, and supports three-terminal voltage divider or two-terminal variable resistor configurations in precision analog trimming applications.
For engineers reviewing the X9317UV8I-2.7 datasheet, X9317UV8I-2.7 pinout, X9317UV8I-2.7 application, or X9317UV8I-2.7 equivalent, key selection criteria include its 8-pin TSSOP package, -40°C to +85°C industrial temperature range, 50 kΩ total resistance, low 5 µA standby current, and 3-wire up/down serial interface compatibility with microcontroller GPIOs.
Technical Context
The X9317UV8I-2.7 integrates a 7-bit up/down counter, decoder, nonvolatile memory for wiper position retention, and a resistor array with 99 matched elements. Its control logic responds to CS (chip select), U/D (direction), and edge-triggered INC inputs - enabling deterministic wiper positioning without clock or data framing overhead.
It operates as a solid-state potentiometer with temperature-compensated resistive elements (±300 ppm/°C total resistance TC), ratiometric tracking (±20 ppm/°C), and wiper resistance of 400 Ω (typ.) at 2.7 V. The device powers up to the last stored tap position and supports both volatile adjustment and nonvolatile store-on-CS-high-with-INC-high programming.
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; stable across -40°C to +85°C. |
| Supply Voltage Range | 2.7 V to 5.5 V - enables direct interface with 3.3 V and 5 V systems without level shifting. |
| Wiper Current Rating | ±4.4 mA - supports biasing laser diodes or setting reference currents without external buffering. |
| Standby Current | <5 µA - minimizes quiescent power in battery-powered or always-on analog subsystems. |
| Resolution | 1% (100 taps) - provides 9.9 mV step size per tap when used as a 5 V voltage divider. |
| Nonvolatile Endurance | 100,000 write cycles - ensures long-term reliability in field-adjustable calibration systems. |
| Data Retention | 100 years - maintains factory or field-trimmed settings across product lifetime without backup power. |
| Wiper Resistance | 400 Ω (max at 2.7 V) - limits voltage error in high-impedance feedback paths; impacts gain accuracy in op-amp circuits. |
Pinout & Package
Package: 8-lead TSSOP (RoHS-compliant, JEDEC MO-153 AC, M8.173 drawing), 3.0 mm × 4.4 mm footprint, 1.2 mm max height, -40°C to +85°C operating range.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (INC) | Increment clock input | Negative-edge-triggered control line; toggling moves wiper one tap in direction set by U/D. |
| 2 (U/D) | Direction control input | Logic level determines wiper movement direction (HIGH = up, LOW = down) during INC transitions. |
| 3 (RH) | High terminal | Fixed end of resistor array; connects to higher potential node in voltage divider or current source path. |
| 4 (VSS) | Ground reference | System ground return for internal logic and resistor array; must be low-impedance for noise immunity. |
| 5 (RW) | Wiper output | Movable terminal; delivers intermediate voltage/current; series resistance ≤400 Ω affects loading error. |
| 6 (RL) | Low terminal | Fixed end of resistor array; connects to lower potential node (e.g., ground or negative rail) in bias networks. |
| 7 (CS) | Chip select | Active-low enable; wiper updates only when CS = LOW; HIGH with INC = HIGH triggers nonvolatile store. |
| 8 (VCC) | Power supply | 2.7–5.5 V CMOS supply; powers logic, memory, and array; decoupling capacitor required near pin. |
Key Features
| Feature | Design Value |
|---|---|
| Nonvolatile wiper storage | Retains last programmed tap position across power cycles - eliminates need for host MCU reinitialization or EEPROM writes. |
| 3-wire serial interface | Uses only CS, U/D, and INC signals - no clock or data lines required; compatible with any GPIO-capable microcontroller. |
| Make-before-break switching | Prevents open-circuit transients during wiper movement - avoids signal glitches in sensitive analog feedback loops. |
| Temperature-compensated array | ±300 ppm/°C end-to-end TC and ±20 ppm/°C ratiometric TC - maintains voltage division accuracy over industrial temperature range. |
| Low-power CMOS design | 5 µA standby current and 80 µA active current - extends battery life in portable instrumentation and sensor nodes. |
| Robust reliability | 100,000 nonvolatile write cycles and 100-year data retention - suitable for field-programmable calibration in medical or test equipment. |
Applications
| LCD Bias Control | Laser Diode Bias Control |
|---|---|
|
Use Scenario: Adjusting contrast and brightness in automotive or industrial LCD displays under varying ambient temperatures. IC Role / Device Role / Timing Role: Three-terminal potentiometer setting DC bias voltage on LCD segment drivers. Use Value: Nonvolatile storage retains optimal contrast setting after vehicle ignition cycle; ±20% RTOTAL tolerance accommodates display panel variance. |
Use Scenario: Setting precise forward current for edge-emitting laser diodes in fiber-optic transceivers. IC Role / Device Role / Timing Role: Two-terminal variable resistor in the laser driver's ISET feedback path. Use Value: 100-tap resolution enables <1% current step control; 4.4 mA wiper rating supports typical 10–50 mA laser bias ranges. |
| Voltage Regulator Output Trim | Offset Voltage Adjustment |
|
Use Scenario: Fine-tuning output voltage of adjustable LDOs or DC-DC converters in telecom power modules. IC Role / Device Role / Timing Role: Resistor divider element in the feedback network of a TLVH431 or similar shunt regulator. Use Value: 50 kΩ RTOTAL minimizes divider current draw while maintaining noise immunity; 2.7 V min supply allows use with low-VOUT regulators. |
Use Scenario: Nulling input offset voltage in precision instrumentation amplifiers used in strain gauge or thermocouple front-ends. IC Role / Device Role / Timing Role: Adjustable resistor in the op-amp's offset null circuit (e.g., LM358, AD822). Use Value: Low 5 µA standby current prevents drift in always-on sensor signal chains; ±1% absolute linearity ensures sub-mV nulling accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digitally controlled potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5243BRMZ50 | I²C interface, dual-channel, 256-tap resolution, 2.7–5.5 V supply, 100 kΩ RTOTAL. | Requires I²C master and supports dual independent pots; lacks nonvolatile store on power-up. | Choose for multi-pot systems needing synchronized updates or digital bus sharing; avoid if standalone trim without MCU firmware is required. |
| MCP4018T-E/OT | 6-bit (64-tap), single-wiper, 5 kΩ RTOTAL, 1.8–5.5 V supply, volatile-only memory. | Lower resolution and no nonvolatile storage; smaller SOT-23-6 package; higher wiper current (±25 mA). | Choose for space-constrained, low-cost trims where host MCU handles power-cycle restoration; avoid for unattended recalibration. |
Compared with AD5243BRMZ50 and MCP4018T-E/OT, the X9317UV8I-2.7 uniquely combines nonvolatile wiper recall, 3-wire simplicity, and industrial temperature support - making it optimal for field-serviceable analog calibration where MCU resources or board space are limited.
Availability
X9317UV8I-2.7 is available at Aetrix Electronics and suitable for LCD bias control, laser diode bias adjustment, and voltage regulator output trimming requiring stable component supply, long-term calibration retention, and RoHS-compliant packaging.
Supply support for X9317UV8I-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 X9317UV8I-2.7 belongs to Renesas' XDCP™ family of digitally controlled potentiometers, designed specifically for replacing mechanical trimmers in precision analog systems requiring field programmability, temperature stability, and nonvolatile setting retention.
FAQ
What is the operating temperature range for the X9317UV8I-2.7?
The X9317UV8I-2.7 is rated for -40°C to +85°C, meeting industrial-grade requirements. This range is confirmed in the Ordering Information table (Page 2) and Absolute Maximum Ratings (Page 4) of the FN8183 Rev.10.01 datasheet. Its temperature-compensated resistor array ensures stable performance across this full span, with ratiometric tracking of ±20 ppm/°C.
Does the X9317UV8I-2.7 retain its wiper position after power loss?
Yes, the X9317UV8I-2.7 stores the wiper position in nonvolatile memory and automatically recalls it on power-up. This behavior is explicitly defined in the device description (Page 1), Principles of Operation (Page 8), and verified by the 100-year data retention specification (Page 5). No external components or host intervention are required.
What is the maximum wiper current rating for the X9317UV8I-2.7 at 2.7 V supply?
The X9317UV8I-2.7 supports ±4.4 mA wiper current (IW) across the full temperature range, as specified in the Potentiometer Specifications table (Page 4). This rating applies regardless of supply voltage within 2.7–5.5 V and is critical for applications like laser diode biasing where current flows through RW.
Can the X9317UV8I-2.7 be used as a two-terminal variable resistor?
Yes, the X9317UV8I-2.7 can operate as a two-terminal variable resistor by connecting RH and RL to fixed potentials and using RW as the adjustable terminal. This configuration is documented in Figure 4 (Page 9) and Applications Information (Page 8), supporting current control in LED drivers or sensor excitation circuits.
What package type and lead count does the X9317UV8I-2.7 use?
The X9317UV8I-2.7 uses an 8-lead TSSOP package (JEDEC MO-153 AC, drawing M8.173), as confirmed in the Ordering Information table (Page 2) and Pin Configurations diagram (Page 3). Its dimensions are 3.0 mm × 4.4 mm with 0.65 mm lead pitch, and it is RoHS-compliant with matte tin terminations.
X9317UV8I-2.7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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-TSSOP
- Operating Temperature:
- -40°C ~ 85°C
- Resistance - Wiper (Ohms) (Typ):
- 400
X9317UV8I-2.7 FAQ
1.How can I place an order for X9317UV8I-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9317UV8I-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 X9317UV8I-2.7 reliable?
The price and inventory of X9317UV8I-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 X9317UV8I-2.7 is usually 5 days.
3.What payment methods are accepted for X9317UV8I-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9317UV8I-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9317UV8I-2.7?
X9317UV8I-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9317UV8I-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 X9317UV8I-2.7?
For technical support, including X9317UV8I-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9317UV8I-2.7 requirements.
6.How does Aetrix verify that X9317UV8I-2.7 is sourced from the original manufacturer or authorized distributors?
All X9317UV8I-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 X9317UV8I-2.7 meets industry standards.
7.What is the process for return or replacement of X9317UV8I-2.7?
All X9317UV8I-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with X9317UV8I-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 X9317UV8I-2.7 part is unused and in its original packaging.
Return procedure for X9317UV8I-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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