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Renesas X9317WS8-2.7T1
- Part No.:
- X9317WS8-2.7T1
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
X9317WS8-2.7T1.pdf
- Description:
- IC DGTL POT 10KOHM 100TAP 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,171
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Product details
Overview
X9317WS8-2.7T1 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%, low standby current (<5 µA), and is used for precision DC bias adjustment and voltage regulator output control in embedded analog signal chains.
For engineers reviewing the X9317WS8-2.7T1 datasheet, X9317WS8-2.7T1 pinout, X9317WS8-2.7T1 application, or X9317WS8-2.7T1 equivalent, this page delivers verified technical context, real-world design meaning of key specs, validated SOIC-8 pin functions, confirmed alternatives for trim-critical circuits, and supply assurance for industrial production programs.
Technical Context
The X9317WS8-2.7T1 uses a 7-bit up/down counter driving a decoder that selects one of 100 wiper positions across a 99-resistor ladder. Its "make-before-break" switching ensures glitch-free transitions during wiper movement, and nonvolatile memory retains the last stored position across power cycles.
Control is implemented via a 3-wire serial interface (CS, U/D, INC) with negative-edge-triggered INC and direction-selectable U/D logic. The device operates as either a three-terminal voltage divider (RH–RW–RL) or two-terminal variable resistor (RW–RL or RW–RH), with wiper resistance specified at 200 Ω (typ) at 5 V and up to 1000 Ω at 2.7 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-end resistance | 10 kΩ ±20% - defines full-scale analog range and sets minimum load impedance for stable voltage division. |
| 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-grained analog trimming in calibration loops. |
| Standby current | <5 µA - supports ultra-low-power modes in battery-backed or energy-constrained systems. |
| Nonvolatile storage | 100-year data retention, 100,000 write cycles - eliminates need for external EEPROM or MCU-based position backup. |
| Temperature coefficient | ±300 ppm/°C (absolute), ±20 ppm/°C (ratiometric) - ensures stable gain/offset over industrial temperature range (−40°C to +85°C). |
| Wiper resistance | 200 Ω (typ) at 5 V; 400–1000 Ω at 2.7 V - impacts loading error in high-impedance feedback paths and must be factored into loop gain calculations. |
Pinout & Package
Package: 8-lead narrow-body SOIC (M8.15E), RoHS-compliant, operating temperature range −40°C to +85°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (INC) | Increment clock input | Negative-edge-triggered control line; toggling moves wiper up/down per U/D state; timing critical for reliable tap stepping (tCYC ≥ 2 µs). |
| 2 (U/D) | Direction control input | Logic level determines wiper movement direction during INC edge; may be changed dynamically while CS is low. |
| 3 (RH) | High terminal | Fixed end of resistor array; connected to higher potential in voltage divider configuration; not necessarily highest voltage node in circuit. |
| 4 (VSS) | Ground reference | Analog and digital ground return; must be low-impedance and decoupled near device to minimize noise coupling into wiper path. |
| 5 (RW) | Wiper terminal | Movable contact point; series resistance (200–1000 Ω) directly affects accuracy in high-Z feedback networks and sensor biasing. |
| 6 (RL) | Low terminal | Fixed end of resistor array; tied to lower potential in voltage divider; forms current path with RW in variable-resistor mode. |
| 7 (CS) | Chip select | Active-low enable; wiper updates only when CS = LOW; HIGH-to-LOW transition initiates store operation if INC = HIGH. |
| 8 (VCC) | Supply voltage | 2.7–5.5 V analog/digital rail; requires local 0.1 µF ceramic decoupling; ICC1 ≤ 80 µA during active incrementing. |
Key Features
| Feature | Design Value |
|---|---|
| Solid-state potentiometer architecture | Eliminates mechanical wear, drift, and contamination issues-enables >100k lifetime adjustments in automated test equipment. |
| 3-wire up/down serial interface | Requires only three GPIOs and no clock generation logic-simplifies integration with microcontrollers lacking SPI peripherals. |
| Nonvolatile wiper position storage | Restores last-trimmed value on power-up-removes need for boot-time calibration routines in medical or industrial sensors. |
| Temperature-compensated resistor array | ±20 ppm/°C ratiometric TC ensures stable voltage division ratio across temperature-critical for laser diode bias stability. |
| Low-power CMOS design | Standby current <5 µA allows continuous connection in always-on monitoring circuits without measurable battery drain. |
Applications
| LCD Bias Control | DC Bias Adjustment |
|---|---|
Use Scenario: Setting precise common-mode voltage and gamma correction in TFT-LCD column drivers. IC Role / Device Role / Timing Role: Three-terminal potentiometer configuring reference voltage dividers for analog pixel voltage scaling. Use Value: 100-tap resolution and ±20 ppm/°C ratiometric TC maintain grayscale consistency across display temperature gradients. |
Use Scenario: Calibrating offset voltage in instrumentation amplifier front-ends before ADC sampling. IC Role / Device Role / Timing Role: Two-terminal variable resistor in op-amp summing junction to null sensor zero-point drift. Use Value: Nonvolatile storage preserves factory-trimmed offset across power cycles-eliminating recalibration in field-deployed sensors. |
| Laser Diode Bias Control | Voltage Regulator Output Control |
Use Scenario: Fine-tuning constant-current source setpoint for optical transceiver TOSA modules. IC Role / Device Role / Timing Role: Voltage divider setting reference for current-sense amplifier in laser driver feedback loop. Use Value: Low noise (−120 dBV) and low wiper resistance minimize current-setting uncertainty and optical power ripple. |
Use Scenario: Dynamically adjusting output voltage of adjustable LDOs (e.g., LT3080, LM317) in programmable power supplies. IC Role / Device Role / Timing Role: Three-terminal potentiometer replacing mechanical trimmer in feedback divider network. Use Value: 2.7–5.5 V operation matches LDO input rails; nonvolatile recall ensures consistent output voltage after cold restart. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digitally controlled potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5241BRMZ10 | Single-channel, I²C interface, 10 kΩ, 64 taps, 2.7–5.5 V, 200 ppm/°C TC | Requires I²C master; lower resolution (64 vs. 100 taps); no built-in nonvolatile storage (relies on host MCU) | Choose when system already uses I²C infrastructure and tap count suffices for required trim granularity. |
| MCP41010-I/P | Single-channel, SPI interface, 10 kΩ, 257 taps, 2.7–5.5 V, 150 ppm/°C TC, volatile-only | Higher resolution but volatile memory only; requires external EEPROM or MCU firmware to retain position | Prefer when finer resolution is needed and host controller handles position persistence reliably. |
Compared with AD5241BRMZ10 and MCP41010-I/P, the X9317WS8-2.7T1 offers superior long-term stability through integrated nonvolatile storage and tighter ratiometric temperature tracking, reducing system-level calibration overhead in unattended industrial equipment.
Availability
X9317WS8-2.7T1 is available at Aetrix Electronics and suitable for LCD bias control, laser diode biasing, and voltage regulator output adjustment requiring stable component supply across automotive, industrial, and medical electronics programs.
Supply support for X9317WS8-2.7T1 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 high-performance analog, mixed-signal, and embedded processing solutions for industrial, automotive, and infrastructure markets.
The X9317WS8-2.7T1 belongs to Renesas' XDCP™ family of digitally controlled potentiometers, engineered specifically for precision analog trimming in space-constrained, low-power, and high-reliability applications where mechanical potentiometers fail.
FAQ
What is the guaranteed wiper position retention capability of the X9317WS8-2.7T1?
The X9317WS8-2.7T1 guarantees 100 years of data retention in nonvolatile memory and supports 100,000 wiper position write cycles. This means the last-stored tap position remains intact across decades of operation and repeated field calibrations-no external backup or refresh logic is required for the X9317WS8-2.7T1 to maintain its trimmed state.
Does the X9317WS8-2.7T1 require an external clock or microcontroller to operate?
No, the X9317WS8-2.7T1 operates autonomously using only three digital control lines (CS, U/D, INC) with no external clock or firmware dependency. Its internal 7-bit up/down counter and decoder handle all wiper positioning-making the X9317WS8-2.7T1 compatible with simple GPIO-driven systems, including those without SPI or I²C peripherals.
Can the X9317WS8-2.7T1 be used in a two-terminal variable resistor configuration?
Yes, the X9317WS8-2.7T1 supports two-terminal operation by connecting either RH or RL to RW and using the remaining terminal with RW as a programmable resistance element. In this mode, total resistance ranges from 0 Ω (wiper at terminal) to 10 kΩ (wiper at opposite end), with wiper resistance (200–1000 Ω) contributing directly to minimum achievable resistance-verified in the X9317WS8-2.7T1 datasheet Figure 4.
What is the maximum allowable voltage across RH and RL terminals of the X9317WS8-2.7T1?
The absolute maximum voltage between RH and RL terminals is limited to +6 V, as specified in the Absolute Maximum Ratings table. Exceeding this risks permanent damage to the internal resistor array switches. For reliable operation, the applied voltage should remain within the supply rails (VSS to VCC), and power dissipation must stay below 10 mW for 10 kΩ devices-both constraints apply directly to the X9317WS8-2.7T1.
How does the X9317WS8-2.7T1 handle power-up sequencing to prevent unintended wiper movement?
The X9317WS8-2.7T1 requires CS and INC to be held HIGH before or concurrently with VCC ramp-up to avoid spurious wiper changes or accidental store operations. Once powered, the wiper stabilizes within 5 µs (tPU), and full electrical specifications apply after 1 ms. This behavior is explicitly defined in the Power-up and Down Requirements section of the X9317WS8-2.7T1 datasheet.
X9317WS8-2.7T1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 8-SOIC (0.154", 3.90mm 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-SOIC
- Operating Temperature:
- 0°C ~ 70°C
- Resistance - Wiper (Ohms) (Typ):
- 400
X9317WS8-2.7T1 FAQ
1.How can I place an order for X9317WS8-2.7T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9317WS8-2.7T1 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 X9317WS8-2.7T1 reliable?
The price and inventory of X9317WS8-2.7T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9317WS8-2.7T1 is usually 5 days.
3.What payment methods are accepted for X9317WS8-2.7T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9317WS8-2.7T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9317WS8-2.7T1?
X9317WS8-2.7T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9317WS8-2.7T1 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 X9317WS8-2.7T1?
For technical support, including X9317WS8-2.7T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9317WS8-2.7T1 requirements.
6.How does Aetrix verify that X9317WS8-2.7T1 is sourced from the original manufacturer or authorized distributors?
All X9317WS8-2.7T1 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 X9317WS8-2.7T1 meets industry standards.
7.What is the process for return or replacement of X9317WS8-2.7T1?
All X9317WS8-2.7T1 units undergo pre-shipment inspection (PSI). If there is an issue with X9317WS8-2.7T1, 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 X9317WS8-2.7T1 part is unused and in its original packaging.
Return procedure for X9317WS8-2.7T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
X9317WS8-2.7T1 Tags
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