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Renesas X9317WV8I-2.7T1
- Part No.:
- X9317WV8I-2.7T1
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
X9317WV8I-2.7T1.pdf
- Description:
- IC DGTL POT 10KOHM 100TAP 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,001
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Product details
Overview
X9317WV8I-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. It serves as a three-terminal voltage divider or two-terminal variable resistor in precision analog trim applications.
For engineers reviewing the X9317WV8I-2.7T1 datasheet, X9317WV8I-2.7T1 pinout, X9317WV8I-2.7T1 application, or X9317WV8I-2.7T1 equivalent, key selection criteria include its 8-pin TSSOP package, -40°C to +85°C industrial temperature range, 10kΩ total resistance, 3-wire up/down interface timing (tCYC = 2µs), and nonvolatile store/recall capability for power-up reproducibility.
Technical Context
The X9317WV8I-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 continuity during tap transitions, while ratiometric temperature coefficient of ±20 ppm/°C maintains voltage division accuracy under thermal drift.
Control is executed via CS (chip select), U/D (direction), and edge-triggered INC inputs - no clock or serial protocol required. Wiper position is stored only when CS rises while INC is high, enabling intentional nonvolatile writes without unintended updates during system operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-end Resistance | 10kΩ ±20% - defines full-scale analog adjustment range and load interaction in voltage divider configurations |
| Supply Voltage Range | 2.7V to 5.5V - supports single-supply operation in battery-powered and low-voltage embedded systems |
| Wiper Resistance | ≤400Ω at VCC = 2.7V - limits voltage error and signal attenuation in precision gain/offset trim circuits |
| Standby Current | <5µA - enables ultra-low-power operation during inactive periods in always-on sensor or bias circuits |
| Nonvolatile Endurance | 100,000 data changes per bit - ensures long-term reliability for field-adjustable calibration settings |
| Temperature Range | -40°C to +85°C - qualified for industrial-grade operation without derating in harsh ambient conditions |
| Resolution | 1% (100 taps) - provides fine-grained analog control granularity equivalent to ~10-bit digital resolution |
| Relative Linearity | ±0.2 MI - guarantees consistent step-size accuracy critical for monotonic DAC-like behavior |
Pinout & Package
Package: 8-pin TSSOP (RoHS-compliant, JEDEC MO-153 AC, M8.173 drawing), 4.4mm × 3.0mm body, 0.65mm pitch, 1.20mm max height.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (INC) | Increment input | Negative-edge-triggered control line; toggling moves wiper up/down per U/D state - no external clock required |
| 2 (U/D) | Up/Down direction control | Static logic level selects wiper movement direction; stable during CS-active window for deterministic positioning |
| 3 (RH) | High terminal | Fixed end of resistor array; connected to higher potential in voltage divider mode - not necessarily VCC |
| 4 (VSS) | Ground reference | Primary return path for internal logic and analog array; must be low-impedance for noise-sensitive trim functions |
| 5 (RW) | Wiper terminal | Movable output node; series resistance ≤400Ω at 2.7V affects loading in buffered vs. direct-connected topologies |
| 6 (RL) | Low terminal | Fixed end of resistor array; tied to lower potential in voltage divider - may be grounded or biased |
| 7 (CS) | Chip select | Active-low enable; rising edge with INC = HIGH initiates nonvolatile store - prevents accidental writes |
| 8 (VCC) | Supply voltage | 2.7V–5.5V analog/digital rail; powers both resistor array and control logic - decoupling essential near pin |
Key Features
| Feature | Design Value |
|---|---|
| Solid-state potentiometer architecture | Eliminates mechanical wear, contact bounce, and environmental sensitivity - ideal for sealed or high-vibration systems |
| 3-wire serial up/down interface | Requires only three GPIOs (CS, U/D, INC); no SPI/I²C controller needed - simplifies microcontroller integration |
| Nonvolatile wiper position storage | Recalls last-set tap on power-up - ensures repeatable startup bias without host initialization overhead |
| Temperature-compensated resistor array | ±20 ppm/°C ratiometric TC preserves voltage division ratio across -40°C to +85°C - critical for sensor signal conditioning |
| Low-power CMOS design | Standby current <5µA and active ICC1 ≤80µA - extends battery life in portable instrumentation and IoT endpoints |
| Make-before-break wiper switching | Prevents open-circuit transients during tap transitions - avoids glitches in feedback loops and comparator hysteresis networks |
Applications
| LCD Bias Control | Laser Diode Bias Control |
|---|---|
Use Scenario: Adjusting VCOM or gamma reference voltages in TFT-LCD panels to maintain grayscale fidelity across temperature and aging. IC Role / Device Role / Timing Role: Three-terminal voltage divider setting precise DC bias levels for source driver ICs. Use Value: 100-tap resolution and ±0.2 MI linearity ensure smooth gamma curve tuning; nonvolatile recall maintains factory calibration after panel power cycles. |
Use Scenario: Setting programmable current limit and threshold voltage for laser diode drivers in optical transceivers. IC Role / Device Role / Timing Role: Two-terminal variable resistor in the feedback path of a constant-current regulator controlling LD anode current. Use Value: 10kΩ RTOTAL and ≤400Ω wiper resistance minimize offset error in high-gain current-sense amplifiers; -40°C to +85°C rating matches telecom thermal envelope. |
| Voltage Regulator Output Control | Gain and Offset Trim |
Use Scenario: Dynamically adjusting output voltage of adjustable LDOs or DC-DC converters in adaptive power management systems. IC Role / Device Role / Timing Role: Resistor network element in the feedback divider of a voltage regulator IC (e.g., LM317, TLV70x). Use Value: Nonvolatile store enables preset output voltages (e.g., 1.2V/1.8V/3.3V); 2.7V minimum VCC allows use with low-dropout regulators themselves. |
Use Scenario: Calibrating input offset and closed-loop gain in instrumentation amplifiers and op-amp-based sensor signal chains. IC Role / Device Role / Timing Role: Precision two-terminal resistor in amplifier feedback or offset nulling networks. Use Value: ±20% RTOTAL tolerance and ±0.2 MI relative linearity support sub-0.1% calibration accuracy; low 5µA standby current avoids loading reference sources. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digitally controlled potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5171BRMZ-10 | I²C interface, 64-tap resolution, 10kΩ, ±30% RTOTAL, 1µA standby | Requires I²C master; lower resolution reduces fine trim capability; tighter VCC range (2.7–5.5V same) | Choose for systems already using I²C infrastructure and where 64-step granularity suffices |
| MCP4017T-103E/OT | Up/down interface, 64-tap, 10kΩ, ±20% RTOTAL, 0.5µA standby, SOT-23-6 | Smaller footprint but fewer taps; no nonvolatile memory - wiper resets on power cycle | Choose for space-constrained PCBs where volatile operation is acceptable and 64-step resolution meets spec |
Compared with AD5171BRMZ-10 and MCP4017T-103E/OT, the X9317WV8I-2.7T1 uniquely combines 100-tap resolution, guaranteed nonvolatile recall, and industrial temperature rating in an 8-pin TSSOP - making it optimal for field-calibrated, power-cycle-resilient analog trimming where I²C overhead or volatile reset is unacceptable.
Availability
X9317WV8I-2.7T1 is available at Aetrix Electronics and suitable for LCD bias control, laser diode bias adjustment, and voltage regulator output programming requiring stable component supply across industrial temperature environments and long product lifecycles.
Supply support for X9317WV8I-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 enterprise applications.
The X9317 series is part of Renesas' XDCP™ (eXternally Digitally Controlled Potentiometer) family, designed specifically for replacing mechanical potentiometers in precision analog trimming, calibration, and bias control circuits where reliability, programmability, and nonvolatile retention are mandatory.
FAQ
What is the supply voltage range for the X9317WV8I-2.7T1?
The X9317WV8I-2.7T1 operates from 2.7V to 5.5V, as confirmed in the Absolute Maximum Ratings and Potentiometer Specifications sections of the FN8183 datasheet. This extended low-voltage capability enables compatibility with modern low-power microcontrollers and battery-operated systems, while maintaining full functionality including nonvolatile store and 100-tap resolution across the entire range.
Does the X9317WV8I-2.7T1 retain its wiper position after power loss?
Yes, the X9317WV8I-2.7T1 stores the wiper position in nonvolatile memory and automatically recalls it on power-up. This behavior is explicitly documented in the device overview and Principles of Operation sections. The store operation requires CS to transition HIGH while INC is HIGH, and data retention is rated for 100 years - ensuring calibration stability over the product's operational lifetime.
What package type and footprint does the X9317WV8I-2.7T1 use?
The X9317WV8I-2.7T1 uses an 8-pin TSSOP package per JEDEC MO-153 AC standard (drawing M8.173), with 0.65mm lead pitch, 4.4mm × 3.0mm body size, and 1.20mm maximum height. Pin 1 identification is marked on the top surface, and the package is RoHS-compliant with matte tin terminations compatible with both SnPb and Pb-free reflow profiles.
How many wiper positions does the X9317WV8I-2.7T1 support?
The X9317WV8I-2.7T1 supports exactly 100 wiper tap points, corresponding to a 7-bit counter decoded across 99 resistive elements. This is stated in the title block, Features list, and Pin Descriptions section. Each tap represents 1% of full-scale resistance, enabling precise analog adjustments equivalent to ~10-bit digital control granularity.
What is the maximum wiper resistance specification for the X9317WV8I-2.7T1 at 2.7V?
At VCC = 2.7V, the wiper resistance (RW) for the X9317WV8I-2.7T1 is specified as ≤1000Ω maximum, with a typical value of 400Ω. This parameter is listed in the Potentiometer Specifications table under "RW Wiper Resistance" with test condition "IW = [V(RH) – V(RL)]/RTOTAL, VCC = 2.7V". It directly impacts voltage error in high-impedance feedback paths.
X9317WV8I-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):
- 10k
- 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
X9317WV8I-2.7T1 FAQ
1.How can I place an order for X9317WV8I-2.7T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9317WV8I-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 X9317WV8I-2.7T1 reliable?
The price and inventory of X9317WV8I-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 X9317WV8I-2.7T1 is usually 5 days.
3.What payment methods are accepted for X9317WV8I-2.7T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9317WV8I-2.7T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9317WV8I-2.7T1?
X9317WV8I-2.7T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9317WV8I-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 X9317WV8I-2.7T1?
For technical support, including X9317WV8I-2.7T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9317WV8I-2.7T1 requirements.
6.How does Aetrix verify that X9317WV8I-2.7T1 is sourced from the original manufacturer or authorized distributors?
All X9317WV8I-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 X9317WV8I-2.7T1 meets industry standards.
7.What is the process for return or replacement of X9317WV8I-2.7T1?
All X9317WV8I-2.7T1 units undergo pre-shipment inspection (PSI). If there is an issue with X9317WV8I-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 X9317WV8I-2.7T1 part is unused and in its original packaging.
Return procedure for X9317WV8I-2.7T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
X9317WV8I-2.7T1 Tags
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