My Inquiry
My Account
Renesas X9317WS8IT1
- Part No.:
- X9317WS8IT1
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
X9317WS8IT1.pdf
- Description:
- IC DGTL POT 10KOHM 100TAP 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,557
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
X9317WS8IT1 from Renesas Electronics is a digitally controlled potentiometer (XDCP™) implementing a 99-element resistor array with 100 wiper tap positions, nonvolatile wiper position storage, and 3-wire up/down serial interface. It operates as a three-terminal voltage divider or two-terminal variable resistor for precision analog trimming in DC bias, gain/offset, and laser diode control circuits.
For engineers reviewing the X9317WS8IT1 datasheet, X9317WS8IT1 pinout, X9317WS8IT1 application, or X9317WS8IT1 equivalent, this page delivers verified specifications including ±20% end-to-end resistance tolerance, 200Ω typical wiper resistance at 5V, <5µA standby current, ±300ppm/°C total resistance temperature coefficient, and SOIC-8 package compatibility with industrial -40°C to +85°C operation.
Technical Context
The X9317WS8IT1 integrates a 7-bit up/down counter, decoder, and nonvolatile memory to control wiper position across 100 discrete taps. Its "make-before-break" switching ensures continuity during wiper transitions, while the resistor array provides ratiometric tracking with ±20 ppm/°C ratiometric temperature coefficient.
Control is implemented via CS (chip select), U/D (direction), and INC (edge-triggered increment) signals - no clock required. Wiper position is stored to nonvolatile memory only when CS rises high while INC is high, enabling deterministic power-up recall without unintended writes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-end Resistance | 10kΩ ±20% - defines full-scale analog range and sets minimum load impedance for stable voltage division |
| Wiper Resistance | 200Ω typical at 5V - contributes directly to output impedance and signal attenuation in buffered configurations |
| Supply Voltage Range | 2.7V to 5.5V - supports single-supply operation across legacy 3.3V and standard 5V systems |
| Standby Current | <5µA - enables always-on trim capability in battery-powered or low-power monitoring circuits |
| Nonvolatile Endurance | 100,000 data changes per bit - supports field calibration cycles over product lifetime without wear-out risk |
| Temperature Range | -40°C to +85°C - qualified for industrial environments including motor drives and sensor signal conditioning |
| Linearity Error | ±1 MI absolute, ±0.2 MI relative - ensures predictable step response in closed-loop feedback and offset correction |
| Power Rating | 10mW (RTOTAL ≥ 10kΩ) - limits maximum voltage across RH–RL terminals to ~1V RMS for safe continuous operation |
Pinout & Package
Package: 8-pin SOIC (M8.15E), RoHS-compliant, narrow-body plastic package with 1.27mm lead pitch and -40°C to +85°C industrial temperature rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (INC) | Increment clock input | Negative-edge-triggered control line; toggling moves wiper up/down based on U/D state |
| 2 (U/D) | Direction control input | Logic level determines wiper movement direction during INC transition; latched on CS low |
| 3 (RH) | High terminal | Fixed end of resistor array; connects to higher potential node in voltage divider configuration |
| 4 (VSS) | Ground reference | Return path for supply and signal currents; must be low-impedance for noise-sensitive analog paths |
| 5 (RW) | Wiper output | Movable terminal; presents 200Ω series resistance and connects to one of 100 tap points |
| 6 (RL) | Low terminal | Fixed end of resistor array; connects to lower potential node or ground in voltage divider use |
| 7 (CS) | Chip select | Active-low enable; initiates wiper movement when low; triggers nonvolatile store on rising edge with INC high |
| 8 (VCC) | Supply voltage | 2.7V–5.5V power rail; powers logic and resistor array; requires local 0.1µF bypass capacitor |
Key Features
| Feature | Design Value |
|---|---|
| Nonvolatile wiper position storage | Recalls last stored tap position on power-up - eliminates need for host MCU initialization sequence |
| 3-wire serial interface | No clock or data lines required - simplifies PCB routing and reduces GPIO count versus SPI/I²C DCPs |
| Temperature-compensated resistor array | ±300ppm/°C total resistance drift - maintains trim stability across industrial temperature ranges |
| Make-before-break wiper switching | Prevents open-circuit transients during tap transitions - critical for bias networks in amplifiers and regulators |
| Low-power CMOS design | 80µA active current, <5µA standby - suitable for always-on calibration in energy-constrained systems |
| Ratiometric tracking | ±20ppm/°C ratiometric tempco - preserves voltage division ratio under thermal gradient conditions |
Applications
| LCD Bias Control | DC Bias Adjustment |
|---|---|
Use Scenario: Setting precise VCOM voltage in TFT-LCD panels to minimize image flicker and ghosting. IC Role / Device Role / Timing Role: Three-terminal potentiometer providing adjustable reference voltage to source driver ICs. Use Value: 100-tap resolution and nonvolatile recall ensure consistent display performance across power cycles without host intervention. |
Use Scenario: Calibrating input offset of op-amps in precision instrumentation front-ends. IC Role / Device Role / Timing Role: Two-terminal variable resistor in feedback network to null amplifier input error. Use Value: ±1 MI absolute linearity and ±20 ppm/°C ratiometric tempco maintain calibration accuracy over temperature. |
| Laser Diode Bias Control | Voltage Regulator Output Control |
Use Scenario: Fine-tuning bias current for telecom laser diodes requiring stable optical output power. IC Role / Device Role / Timing Role: Adjustable current-limiting resistor in laser driver feedback loop. Use Value: Low wiper resistance (200Ω typ.) minimizes voltage drop and thermal drift in high-precision current sensing paths. |
Use Scenario: Programmable output voltage setting for adjustable linear regulators (e.g., LM317-based designs). IC Role / Device Role / Timing Role: Replaces mechanical trimpot in R1/R2 feedback divider to enable remote or automated regulation. Use Value: Nonvolatile storage retains setpoint after power loss, eliminating need for reconfiguration in embedded power modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digitally controlled potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5243BRMZ10 | I²C interface, dual-channel, 256-tap resolution, 10kΩ nominal, ±30% RTOTAL tolerance | Requires I²C bus and software stack; better resolution but looser resistance tolerance than X9317WS8IT1 | Choose for multi-channel trimming or systems already using I²C infrastructure |
| MCP41010-I/P | SPI interface, 257-tap resolution, 10kΩ nominal, ±20% RTOTAL, 5V-only supply (4.5–5.5V) | Needs dedicated SPI peripheral and chip-select management; lacks wide-voltage support of X9317WS8IT1 | Choose when higher tap count and SPI-native host architecture justify added complexity |
Compared with AD5243BRMZ10 and MCP41010-I/P, the X9317WS8IT1 offers simpler 3-wire control with no protocol overhead, wider 2.7–5.5V supply range, and guaranteed industrial temperature operation - making it optimal for cost-sensitive, low-pin-count analog trimming where deterministic power-up behavior is essential.
Availability
X9317WS8IT1 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 and long production lifecycles.
Supply support for X9317WS8IT1 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 manufacturer headquartered in Tokyo, Japan, specializing in microcontrollers, analog mixed-signal devices, and power management ICs for industrial, automotive, and infrastructure markets.
The X9317WS8IT1 belongs to Renesas' XDCP™ (eXternally Digitally Controlled Potentiometer) family, designed specifically for replacing mechanical potentiometers in analog signal conditioning, power supply trimming, and sensor calibration applications where reliability, nonvolatility, and low power are critical.
FAQ
What is the supply voltage range supported by the X9317WS8IT1?
The X9317WS8IT1 supports a supply voltage range of 2.7V to 5.5V, enabling interoperability with both 3.3V and 5V systems. This wide range accommodates legacy designs and modern low-voltage applications without level-shifting. The device maintains full specification compliance-including wiper position accuracy and nonvolatile write functionality-across this entire range, as confirmed in the FN8183 Rev.10.01 datasheet Absolute Maximum Ratings and Potentiometer Specifications tables.
How does the X9317WS8IT1 store and recall wiper position?
The X9317WS8IT1 stores wiper position in nonvolatile memory only when CS transitions from low to high while INC is held high-a deliberate write condition preventing accidental updates. Upon power-up, the stored value is automatically recalled to the wiper within 5µs, ensuring repeatable analog settings without host MCU involvement. This behavior is validated in the Power-up and Down Requirements section and confirmed by endurance testing of 100,000 write cycles per bit.
What is the pin-compatible package option for the X9317WS8IT1?
The X9317WS8IT1 uses an 8-pin SOIC package (JEDEC MS-012, drawing M8.15E) with 1.27mm lead pitch. Pin-compatible alternatives include the X9317WM8IZT1 (MSOP-8) and X9317WV8IZT1 (TSSOP-8), which share identical pin functions and electrical specifications but differ in footprint and thermal resistance. All three packages support the same -40°C to +85°C industrial temperature range and RoHS compliance.
Does the X9317WS8IT1 support true 3-terminal potentiometer operation?
Yes, the X9317WS8IT1 fully supports three-terminal potentiometer operation with independent RH, RL, and RW terminals. When used as a voltage divider, RH connects to VCC or reference voltage, RL to ground or low potential, and RW delivers the tapped output. The datasheet explicitly confirms this configuration in Figure 3 ("Three Terminal Potentiometer; Variable Voltage Divider") and Applications Information, with verified performance including ±1 MI absolute linearity and ratiometric temperature tracking.
What is the maximum wiper current rating for the X9317WS8IT1?
The X9317WS8IT1 specifies a maximum wiper current (IW) of ±4.4mA, measured with RH and RL biased at VCC and ground respectively. This limit ensures reliable operation of the internal CMOS switches and prevents localized heating that could affect resistance stability. Exceeding this current may degrade wiper resistance consistency or accelerate wear-particularly relevant in current-sensing or laser diode bias applications where RW carries load current.
X9317WS8IT1 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:
- 5V
- Features:
- -
- Tolerance:
- ±20%
- Temperature Coefficient (Typ):
- ±300ppm/°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-SOIC
- Operating Temperature:
- -40°C ~ 85°C
- Resistance - Wiper (Ohms) (Typ):
- 200
X9317WS8IT1 FAQ
1.How can I place an order for X9317WS8IT1 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9317WS8IT1 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 X9317WS8IT1 reliable?
The price and inventory of X9317WS8IT1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9317WS8IT1 is usually 5 days.
3.What payment methods are accepted for X9317WS8IT1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9317WS8IT1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9317WS8IT1?
X9317WS8IT1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9317WS8IT1 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 X9317WS8IT1?
For technical support, including X9317WS8IT1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9317WS8IT1 requirements.
6.How does Aetrix verify that X9317WS8IT1 is sourced from the original manufacturer or authorized distributors?
All X9317WS8IT1 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 X9317WS8IT1 meets industry standards.
7.What is the process for return or replacement of X9317WS8IT1?
All X9317WS8IT1 units undergo pre-shipment inspection (PSI). If there is an issue with X9317WS8IT1, 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 X9317WS8IT1 part is unused and in its original packaging.
Return procedure for X9317WS8IT1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
X9317WS8IT1 Tags
-
MCP4018T-103E/LT
Microchip Technology
-
MCP4018T-503E/LT
Microchip Technology
-
MCP4011T-103E/SN
Microchip Technology
-
MCP4018T-104E/LT
Microchip Technology
-
MCP4017T-503E/LT
Microchip Technology
-
MCP4018T-502E/LT
Microchip Technology
-
MCP4017T-103E/LT
Microchip Technology
-
MCP4531T-103E/MF
Microchip Technology
-
MCP4021T-202E/SN
Microchip Technology
-
MCP4023T-103E/CH
Microchip Technology
-
MCP4022T-503E/CH
Microchip Technology
-
MCP4551T-502E/MS
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
