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Renesas X9317UV8IZ-2.7T1
- Part No.:
- X9317UV8IZ-2.7T1
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
X9317UV8IZ-2.7T1.pdf
- Description:
- IC DGTL POT 50KOHM 100TAP 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,229
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Product details
Overview
X9317UV8IZ-2.7T1 from Renesas Electronics is a digitally controlled potentiometer (XDCP™) with 100 wiper tap points, nonvolatile wiper position storage, and 2.7V to 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. Used for precision DC bias adjustment and voltage regulator output control in industrial-grade embedded systems.
For engineers reviewing the X9317UV8IZ-2.7T1 datasheet, X9317UV8IZ-2.7T1 pinout, X9317UV8IZ-2.7T1 application, or X9317UV8IZ-2.7T1 equivalent, this device delivers verified ratiometric temperature coefficient (±20 ppm/°C), low-noise performance (–120 dBV ref: 1 kHz), and guaranteed 100,000 write cycles with 100-year data retention - critical for field-deployed calibration-critical circuits.
Technical Context
The X9317UV8IZ-2.7T1 uses a 7-bit up/down counter driving a decoder that selects one of 100 wiper positions across a monolithic 99-resistor array. Its 3-wire serial interface (CS, U/D, INC) operates with negative-edge-triggered INC and make-before-break switching to prevent open-circuit transients during wiper movement.
Nonvolatile memory stores wiper position on CS↑ with INC HIGH, enabling automatic power-up recall. The device supports both three-terminal potentiometer (voltage divider) and two-terminal variable resistor (current control) configurations, with RH/RL terminals rated for 0V to VCC and RW wiper terminal exhibiting ≤1000Ω max resistance at 2.7V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-end Resistance | 50kΩ ±20% - defines full-scale analog range and sets minimum load impedance for stable voltage division |
| Wiper Resistance | ≤1000Ω at 2.7V - limits voltage error in high-impedance feedback paths and affects gain accuracy in op-amp trim circuits |
| Supply Voltage Range | 2.7V to 5.5V - enables direct compatibility with 3.3V and 5V logic domains without level-shifting |
| Standby Current | <5µA - allows battery-backed or energy-harvesting systems to retain calibrated settings with negligible quiescent drain |
| Ratiometric Tempco | ±20 ppm/°C - ensures stable voltage division ratio over –40°C to +85°C, critical for sensor bias and reference trimming |
| Resolution | 1% (1/99 step) - provides 100 discrete, repeatable settings for factory or field calibration without mechanical wear |
| Nonvolatile Endurance | 100,000 write cycles - supports lifetime recalibration in maintenance-accessible equipment without EEPROM fatigue concerns |
Pinout & Package
Package: 8-lead TSSOP (RoHS-compliant, JEDEC MO-153 AC, M8.173 drawing), 4.4mm × 3.0mm body, 0.65mm pitch, –40°C to +85°C operating range.
| 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 - requires tIL ≥960ns pulse width |
| 2 (U/D) | Direction control input | Logic level determines wiper increment (HIGH) or decrement (LOW); may be changed dynamically while CS is LOW |
| 3 (RH) | High terminal | Fixed end of resistor array; connected to highest potential in voltage divider configuration - not necessarily VCC |
| 4 (VSS) | Ground reference | Primary return path for internal logic and resistor array; must be low-impedance to minimize noise coupling into RW |
| 5 (RW) | Wiper terminal | Movable contact point; series resistance ≤1000Ω at 2.7V affects loop gain stability in closed-loop trim applications |
| 6 (RL) | Low terminal | Fixed end of resistor array; tied to lowest potential in voltage divider - not necessarily ground unless configured as variable resistor |
| 7 (CS) | Chip select | Active-LOW enable; HIGH edge with INC HIGH initiates nonvolatile store; deassertion places device in standby (<5µA) |
| 8 (VCC) | Supply voltage | 2.7V–5.5V CMOS-compatible rail; internal regulation ensures consistent counter timing and memory write voltage across range |
Key Features
| Feature | Design Value |
|---|---|
| Nonvolatile wiper storage | Retains last-set position across power cycles - eliminates need for external microcontroller initialization or backup power |
| Temperature-compensated array | ±20 ppm/°C ratiometric tempco ensures stable voltage division in thermal-varying environments like industrial enclosures |
| Make-before-break switching | Prevents open-circuit transients during wiper movement - avoids glitches in op-amp feedback or comparator hysteresis networks |
| Low-noise architecture | –120 dBV noise floor (1 kHz ref) minimizes injection into sensitive analog signal paths such as laser diode bias or sensor references |
| Wide supply range | 2.7V–5.5V operation supports direct integration into mixed-voltage systems without dedicated LDOs or level shifters |
Applications
| LCD Bias Control | DC Bias Adjustment |
|---|---|
Use Scenario: Setting precise VCOM voltage in TFT-LCD panels to minimize image flicker and improve grayscale uniformity. IC Role / Device Role / Timing Role: Three-terminal potentiometer configuring adjustable voltage divider between VDD and VSS to generate stable mid-rail bias. Use Value: 100-tap resolution and ±20 ppm/°C ratiometric tempco maintain display contrast stability across –40°C to +85°C operating range. | Use Scenario: Calibrating input offset voltage of instrumentation amplifiers in data acquisition front-ends. IC Role / Device Role / Timing Role: Two-terminal variable resistor in op-amp feedback loop to adjust gain or null DC offset without mechanical drift. Use Value: Nonvolatile storage preserves factory-trimmed offsets after power cycling; low 5µA standby current extends battery life in portable DAQ units. |
| Laser Diode Bias Control | Voltage Regulator Output Control |
Use Scenario: Fine-tuning bias current for telecom laser diodes where optical power stability is critical over temperature. IC Role / Device Role / Timing Role: Precision current-setting resistor in constant-current source topology, with RH/RW/RL configured as two-terminal device. Use Value: ≤1000Ω wiper resistance at 2.7V ensures minimal voltage drop and thermal drift impact on setpoint accuracy. | Use Scenario: Adjusting output voltage of adjustable linear regulators (e.g., LM317) in programmable power supplies. IC Role / Device Role / Timing Role: Replacing mechanical potentiometer in feedback divider network to enable remote or automated voltage programming. Use Value: 100,000-cycle endurance supports frequent recalibration in lab-grade supplies; RoHS-compliant TSSOP eases automated assembly. |
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 | I²C interface, 256-tap resolution, 50kΩ, 2.7V–5.5V, but no nonvolatile store on power-up - requires external EEPROM or MCU initialization | Lacks automatic power-up recall; suitable only where host controller manages calibration state | Select when I²C bus integration is prioritized over autonomous operation |
| MCP45HV51-503E/MS | Up/down interface, 256 taps, 50kΩ, 4.5V–20V supply - higher voltage range but no 2.7V operation or guaranteed ±20 ppm/°C ratiometric tempco | Supports high-side biasing in industrial 12V/24V systems but unsuitable for 3.3V-only designs | Select for high-voltage analog trimming where 2.7V start-up is not required |
Compared with AD5175BRMZ-50 and MCP45HV51-503E/MS, the X9317UV8IZ-2.7T1 uniquely combines guaranteed 2.7V operation, automatic power-up recall, and ±20 ppm/°C ratiometric tempco in a TSSOP package - making it the only choice for unattended, thermally robust, low-voltage calibration in field-deployed equipment.
Availability
X9317UV8IZ-2.7T1 is available at Aetrix Electronics and suitable for LCD bias control, laser diode bias adjustment, voltage regulator output programming, and precision DC offset trimming requiring stable component supply across industrial temperature ranges.
Supply support for X9317UV8IZ-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, infrastructure, and IoT applications.
The X9317 family is designed specifically for solid-state replacement of mechanical potentiometers in calibration-critical analog circuits - emphasizing nonvolatile retention, temperature-stable ratiometric performance, and robust 3-wire interface simplicity.
FAQ
What is the guaranteed operating temperature range for the X9317UV8IZ-2.7T1?
The X9317UV8IZ-2.7T1 is specified for –40°C to +85°C operation, validated across all electrical parameters including end-to-end resistance tolerance, ratiometric temperature coefficient, and wiper resistance. This industrial-grade rating is confirmed in the Ordering Information table (Page 2) and Absolute Maximum Ratings section (Page 4) of the FN8183 Rev.10.01 datasheet.
Does the X9317UV8IZ-2.7T1 support true 2.7V operation, and how is this reflected in its specifications?
Yes, the X9317UV8IZ-2.7T1 is explicitly rated for 2.7V to 5.5V supply operation, as indicated by the "-2.7" suffix and confirmed in the Potentiometer Specifications table (Page 4). Key parameters - including wiper resistance (≤1000Ω), ICC1 active current (≤80µA), and tIW wiper response time (≤5µs) - are guaranteed across this full range, enabling reliable use in 3.3V and battery-powered systems.
How does the nonvolatile memory in the X9317UV8IZ-2.7T1 function, and what is its endurance?
The X9317UV8IZ-2.7T1 stores wiper position in nonvolatile memory upon CS↑ with INC HIGH, recalling it automatically at power-up. It guarantees 100,000 write cycles and 100 years of data retention at full temperature range, as documented in the Endurance and Data Retention table (Page 5) and validated per JEDEC standards - eliminating need for external memory or initialization firmware.
What is the significance of the ±20 ppm/°C ratiometric temperature coefficient for the X9317UV8IZ-2.7T1?
The ±20 ppm/°C ratiometric temperature coefficient ensures the voltage division ratio (VRW/VRH–RL) remains stable over temperature - critical for applications like sensor biasing or reference trimming where absolute resistance drift is less important than proportional accuracy. This spec is measured across the full –40°C to +85°C range and appears in the Potentiometer Specifications table (Page 4).
Can the X9317UV8IZ-2.7T1 be used in a two-terminal variable resistor configuration, and what design considerations apply?
Yes, the X9317UV8IZ-2.7T1 supports two-terminal operation by connecting RH and RW (or RL and RW) as the variable element. Designers must account for wiper resistance (≤1000Ω at 2.7V) in current-sense paths and ensure maximum wiper current (±4.4mA) is not exceeded. The Equivalent Circuit diagram (Page 5) and Applications Information section (Page 8) confirm this configuration's validity and limitations.
X9317UV8IZ-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:
- 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-TSSOP
- Operating Temperature:
- -40°C ~ 85°C
- Resistance - Wiper (Ohms) (Typ):
- 400
X9317UV8IZ-2.7T1 FAQ
1.How can I place an order for X9317UV8IZ-2.7T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9317UV8IZ-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 X9317UV8IZ-2.7T1 reliable?
The price and inventory of X9317UV8IZ-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 X9317UV8IZ-2.7T1 is usually 5 days.
3.What payment methods are accepted for X9317UV8IZ-2.7T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9317UV8IZ-2.7T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9317UV8IZ-2.7T1?
X9317UV8IZ-2.7T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9317UV8IZ-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 X9317UV8IZ-2.7T1?
For technical support, including X9317UV8IZ-2.7T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9317UV8IZ-2.7T1 requirements.
6.How does Aetrix verify that X9317UV8IZ-2.7T1 is sourced from the original manufacturer or authorized distributors?
All X9317UV8IZ-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 X9317UV8IZ-2.7T1 meets industry standards.
7.What is the process for return or replacement of X9317UV8IZ-2.7T1?
All X9317UV8IZ-2.7T1 units undergo pre-shipment inspection (PSI). If there is an issue with X9317UV8IZ-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 X9317UV8IZ-2.7T1 part is unused and in its original packaging.
Return procedure for X9317UV8IZ-2.7T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
X9317UV8IZ-2.7T1 Tags
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