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Renesas X9317UV8I-2.7T1
- Part No.:
- X9317UV8I-2.7T1
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
X9317UV8I-2.7T1.pdf
- Description:
- IC DGTL POT 50KOHM 100TAP 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,386
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Product details
Overview
X9317UV8I-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 tolerance of ±20%, wiper resistance ≤400Ω at 2.7V, and standby current <5µA. It serves as a three-terminal voltage divider or two-terminal variable resistor in precision analog trimming applications.
For engineers reviewing the X9317UV8I-2.7T1 datasheet, X9317UV8I-2.7T1 pinout, X9317UV8I-2.7T1 application, or X9317UV8I-2.7T1 equivalent, key selection considerations include its 8-pin TSSOP package, -40°C to +85°C industrial temperature range, 50kΩ total resistance value, 3-wire up/down serial interface, and nonvolatile recall on power-up - all critical for embedded bias control and calibration systems requiring long-term setting retention.
Technical Context
The X9317UV8I-2.7T1 integrates a 7-bit up/down counter, decoder, and nonvolatile memory to control wiper position across 99 resistive elements. Its "make-before-break" switching ensures glitch-free transitions during wiper movement, while ratiometric temperature coefficient of ±20 ppm/°C preserves voltage division accuracy under thermal drift.
Operation relies on three dedicated digital inputs: CS (chip select), U/D (direction control), and INC (edge-triggered increment/decrement). A store command executes when CS rises high while INC is high, writing the current wiper position to EEPROM with 100,000-cycle endurance and 100-year data retention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-end Resistance | 50kΩ ±20% - defines full-scale analog adjustment range and sets maximum power dissipation limit (10mW) |
| Supply Voltage Range | 2.7V to 5.5V - enables direct compatibility with 3.3V and 5V logic systems without level-shifting |
| Wiper Resistance | ≤400Ω at 2.7V - limits voltage error in low-voltage bias networks and maintains linearity under load |
| Standby Current | <5µA - supports ultra-low-power operation in battery-backed or energy-constrained systems |
| Temperature Range | -40°C to +85°C - qualifies for industrial-grade deployment in automotive ECUs, industrial sensors, and telecom infrastructure |
| Nonvolatile Endurance | 100,000 data changes per bit - ensures reliable field recalibration over product lifetime without wear-out failure |
| Resolution | 1% (100 taps) - provides 9.9mV step resolution across 1V span, sufficient for fine gain/offset trim |
Pinout & Package
Package: 8-pin TSSOP (RoHS-compliant, JEDEC MO-153 AC, M8.173 drawing), 3.0mm × 4.4mm footprint, 1.20mm max height, 0.65mm lead pitch.
| 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; determines timing of wiper position update (tIW ≤5µs) |
| 2 (U/D) | Direction control input | Logic level selects wiper movement direction during INC edge; allows bidirectional trimming without reinitialization |
| 3 (RH) | High terminal | Fixed end of resistor array; connected to highest potential node in voltage divider configuration |
| 4 (VSS) | Ground reference | System ground return path; must be low-impedance to minimize noise coupling into wiper output |
| 5 (RW) | Wiper terminal | Movable contact point; delivers intermediate voltage/current; series resistance ≤400Ω affects loading in precision feedback paths |
| 6 (RL) | Low terminal | Fixed end of resistor array; tied to lowest potential node (e.g., ground or negative rail) in 3-terminal use |
| 7 (CS) | Chip select | Active-low enable; initiates communication and triggers nonvolatile store when rising edge occurs with INC = HIGH |
| 8 (VCC) | Power supply | 2.7V–5.5V CMOS-compatible supply; powers internal logic, memory, and resistor array; requires local 0.1µF decoupling |
Key Features
| Feature | Design Value |
|---|---|
| Solid-state construction | Eliminates mechanical wear, vibration sensitivity, and contact bounce - ideal for high-reliability industrial control loops |
| Nonvolatile wiper recall | Automatically restores last-trimmed position at power-on, enabling consistent startup behavior without host MCU intervention |
| Temperature-compensated array | ±20 ppm/°C ratiometric TC ensures stable voltage division ratio across -40°C to +85°C - critical for sensor biasing |
| 3-wire serial interface | Requires only CS, U/D, and INC signals - simplifies PCB routing and reduces GPIO count vs. SPI/I²C alternatives |
| Low-noise performance | -120dBV noise floor (1kHz ref) minimizes injection into sensitive analog signal paths like laser diode bias or ADC reference dividers |
Applications
| LCD Bias Control | Laser Diode Bias Control |
|---|---|
Use Scenario: Adjusting VCOM voltage in TFT-LCD panels to optimize contrast and reduce image flicker across temperature gradients. IC Role / Device Role / Timing Role: Three-terminal potentiometer configured as adjustable voltage divider between VDD and ground, feeding buffered VCOM driver. Use Value: Nonvolatile recall ensures consistent display startup; ±20 ppm/°C ratiometric TC maintains stable VCOM offset despite ambient shifts. |
Use Scenario: Setting precise bias current for edge-emitting laser diodes in fiber-optic transceivers operating over industrial temperature range. IC Role / Device Role / Timing Role: Two-terminal variable resistor in series with laser anode, controlling current via external op-amp feedback loop. Use Value: 50kΩ RTOTAL enables fine current resolution (≈20µA/tap at 1V); <5µA standby current avoids parasitic discharge in sleep mode. |
| Voltage Regulator Output Trim | DC Offset Adjustment in Instrumentation Amplifiers |
Use Scenario: Fine-tuning output voltage of adjustable LDOs (e.g., TLV70xx) in programmable power supplies where factory calibration must persist through power cycles. IC Role / Device Role / Timing Role: Three-terminal potentiometer replacing mechanical trimmer in feedback divider network of error amplifier. Use Value: 100-tap resolution supports 0.5% output adjustment granularity; nonvolatile storage eliminates need for EEPROM-based calibration tables. |
Use Scenario: Nulling DC offset in precision instrumentation amplifiers (e.g., AD8421) used in strain-gauge bridge interfaces for structural health monitoring. IC Role / Device Role / Timing Role: Two-terminal variable resistor in offset-nulling path of IA's input stage, adjusted during system self-test. Use Value: Low wiper resistance (≤400Ω) prevents gain error in high-Z nulling nodes; -120dBV noise avoids degrading µV-level signal integrity. |
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, 50kΩ, ±8% RTOTAL tolerance, 10ppm/°C tempco | Higher resolution and tighter tempco, but requires I²C bus and lacks true nonvolatile recall (resets on power loss unless externally saved) | Select for systems needing finer granularity and I²C infrastructure; avoid if minimizing firmware overhead or ensuring guaranteed power-on position is critical |
| MCP45HV51-503E/MS | 256-tap SPI interface, 50kΩ, ±20% RTOTAL, 500ppm/°C tempco, 12V tolerant | Supports higher voltage rails (up to 12V), but significantly worse ratiometric tempco compromises precision over temperature | Select for HV analog front-ends requiring >5.5V operation; avoid in temperature-sensitive biasing where ±20 ppm/°C stability is mandatory |
Compared with AD5175BRMZ-50 and MCP45HV51-503E/MS, the X9317UV8I-2.7T1 offers deterministic nonvolatile power-on behavior and superior ratiometric stability (±20 ppm/°C), making it optimal for unattended industrial calibrations - whereas alternatives trade recall reliability or thermal accuracy for interface flexibility or voltage range.
Availability
X9317UV8I-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 extended temperature ranges and long product lifecycles.
Supply support for X9317UV8I-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 emphasis on reliability and long-term support.
The X9317UV8I-2.7T1 belongs to Renesas' XDCP™ (Digitally Controlled Potentiometer) family, designed specifically for replacing mechanical trimmers in analog signal conditioning, bias control, and calibration circuits where nonvolatile setting retention and temperature-stable performance are essential.
FAQ
What is the exact end-to-end resistance value and tolerance of the X9317UV8I-2.7T1?
The X9317UV8I-2.7T1 has a nominal end-to-end resistance (RTOTAL) of 50kΩ with a tolerance of ±20%, as specified in the Ordering Information table on page 2 of the FN8183 datasheet. This tolerance applies across the full -40°C to +85°C operating temperature range and directly impacts power rating (10mW maximum) and voltage division accuracy in circuit design.
Does the X9317UV8I-2.7T1 retain its wiper position after power cycling?
Yes, the X9317UV8I-2.7T1 stores the wiper position in nonvolatile memory and automatically recalls it upon power-up. This behavior is guaranteed by its EEPROM-based storage architecture, which provides 100-year data retention and 100,000 write cycles - confirmed in the "Endurance and Data Retention" section on page 5 of the FN8183 datasheet.
What package type and footprint does the X9317UV8I-2.7T1 use?
The X9317UV8I-2.7T1 uses an 8-pin TSSOP package per JEDEC MO-153 AC standard, with package drawing M8.173. Its dimensions are 3.0mm × 4.4mm body size, 0.65mm lead pitch, and 1.20mm maximum height - verified in the "Package Outline Drawings" section on page 12 of the FN8183 datasheet.
How does the 3-wire interface of the X9317UV8I-2.7T1 operate?
The X9317UV8I-2.7T1 uses CS (active-low chip select), U/D (direction control), and INC (negative-edge-triggered increment) signals. Wiper movement occurs on each falling edge of INC while CS is low; U/D sets direction. A store command executes when CS rises high while INC is high - detailed in the "Principles of Operation" section on page 8 of FN8183.
What is the maximum wiper current rating for the X9317UV8I-2.7T1 at 2.7V supply?
At VCC = 2.7V, the X9317UV8I-2.7T1 supports a maximum wiper current (IW) of ±4.4mA, as specified in the "Potentiometer Specifications" table on page 4 of FN8183. Exceeding this may cause excessive wiper resistance drift or accelerated wear, particularly given its 400Ω max wiper resistance at 2.7V.
Is the X9317UV8I-2.7T1 RoHS compliant and lead-free?
Yes, the X9317UV8I-2.7T1 is RoHS compliant and lead-free, using 100% matte tin plate (e3 termination finish) as stated in Note 2 of the Ordering Information table on page 2 of FN8183. It meets IPC/JEDEC J-STD-020 reflow requirements and is classified per Moisture Sensitivity Level (MSL) guidelines referenced in Note 3.
X9317UV8I-2.7T1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- 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-2.7T1 FAQ
1.How can I place an order for X9317UV8I-2.7T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9317UV8I-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 X9317UV8I-2.7T1 reliable?
The price and inventory of X9317UV8I-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 X9317UV8I-2.7T1 is usually 5 days.
3.What payment methods are accepted for X9317UV8I-2.7T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9317UV8I-2.7T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9317UV8I-2.7T1?
X9317UV8I-2.7T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9317UV8I-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 X9317UV8I-2.7T1?
For technical support, including X9317UV8I-2.7T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9317UV8I-2.7T1 requirements.
6.How does Aetrix verify that X9317UV8I-2.7T1 is sourced from the original manufacturer or authorized distributors?
All X9317UV8I-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 X9317UV8I-2.7T1 meets industry standards.
7.What is the process for return or replacement of X9317UV8I-2.7T1?
All X9317UV8I-2.7T1 units undergo pre-shipment inspection (PSI). If there is an issue with X9317UV8I-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 X9317UV8I-2.7T1 part is unused and in its original packaging.
Return procedure for X9317UV8I-2.7T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
X9317UV8I-2.7T1 Tags
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MCP4018T-103E/LT
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MCP4018T-503E/LT
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MCP4011T-103E/SN
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MCP4017T-503E/LT
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MCP4018T-502E/LT
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MCP4017T-103E/LT
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MCP4531T-103E/MF
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MCP4021T-202E/SN
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MCP4023T-103E/CH
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MCP4022T-503E/CH
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MCP4551T-502E/MS
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