Renesas X9317ZS8IT1
- Part No.:
- X9317ZS8IT1
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
X9317ZS8IT1.pdf
- Description:
- IC DGTL POT 1KOHM 100TAP 8SOIC
- Quantity:
- Payment:

- Shipping:

Inventory:1,007
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Product details
Overview
X9317ZS8IT1 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 X9317ZS8IT1 datasheet, X9317ZS8IT1 pinout, X9317ZS8IT1 application, or X9317ZS8IT1 equivalent, key selection criteria include its ±20% end-to-end resistance tolerance, 200 Ω typical wiper resistance at 5 V, -40°C to +85°C industrial temperature range, RoHS-compliant 8-lead SOIC package, and 100-year nonvolatile data retention.
Technical Context
The X9317ZS8IT1 integrates a 7-bit up/down counter, decoder, and solid-state resistor array with make-before-break wiper switching. Its control logic responds to CS (chip select), U/D (direction), and edge-triggered INC inputs to move the wiper across 100 discrete taps.
Wiper position is stored in nonvolatile memory upon CS↑ while INC = HIGH, enabling automatic recall at power-up. The device supports both 5 V ±10% and extended 2.7–5.5 V supply operation, with standby current <5 µA and ratiometric temperature coefficient of ±20 ppm/°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-end Resistance | 10 kΩ ±20% - defines total resistive span and sets maximum power dissipation limit of 10 mW |
| Wiper Resistance | 200 Ω typical at 5 V - contributes directly to output impedance and voltage error in divider configurations |
| Supply Voltage Range | 2.7 V to 5.5 V - enables compatibility with modern low-voltage microcontrollers and mixed-signal systems |
| Nonvolatile Retention | 100 years - ensures long-term calibration stability without battery backup or external EEPROM |
| Operating Temperature | -40°C to +85°C - qualified for industrial environments including motor drives and instrumentation |
| Interface Type | 3-wire serial up/down - eliminates need for SPI/I²C peripherals; uses simple GPIO-controlled timing |
| Wiper Tap Count | 100 positions - provides 1% resolution for fine analog adjustment without DAC complexity |
Pinout & Package
Package: 8-lead narrow-body SOIC (M8.15E), RoHS-compliant, 3.9 mm × 4.9 mm × 1.75 mm max height.
| 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 |
| 2 (U/D) | Direction control input | Logic level determines wiper movement direction during INC transition |
| 3 (RH) | High terminal | Fixed end of resistor array; connects to higher potential in voltage divider mode |
| 4 (VSS) | Ground reference | Return path for supply and signal currents; must be low-impedance for noise immunity |
| 5 (RW) | Wiper output | Movable terminal; delivers interpolated voltage/current based on tap position |
| 6 (RL) | Low terminal | Fixed end of resistor array; connects to lower potential or ground in voltage divider mode |
| 7 (CS) | Chip select | Active-low enable; HIGH initiates nonvolatile store when INC = HIGH |
| 8 (VCC) | Supply voltage | Power source for logic and analog sections; supports 2.7–5.5 V operation |
Key Features
| Feature | Design Value |
|---|---|
| Solid-state potentiometer architecture | Eliminates mechanical wear, contact bounce, and environmental sensitivity of trimmer pots |
| Nonvolatile wiper position storage | Recalls last-set value at power-up-no host initialization required for repeatable startup behavior |
| Temperature-compensated resistor array | ±300 ppm/°C absolute RTOTAL drift and ±20 ppm/°C ratiometric drift ensure stable divider ratios over temperature |
| Low-power CMOS design | Standby current <5 µA enables use in battery-powered or energy-sensitive applications |
| Make-before-break wiper switching | Prevents open-circuit transients during tap transitions-critical for stable biasing in amplifiers and regulators |
Applications
| LCD Bias Control | DC Bias Adjustment |
|---|---|
Use Scenario: Setting precise VCOM or gamma reference voltages in TFT-LCD driver ICs. IC Role / Device Role / Timing Role: Three-terminal voltage divider providing stable, programmable DC offset to panel pixel drivers. Use Value: Enables factory calibration and dynamic contrast tuning without manual potentiometers or external DACs. |
Use Scenario: Trimming input offset or quiescent current in op-amp or LDO feedback networks. IC Role / Device Role / Timing Role: Two-terminal variable resistor adjusting loop gain or bias point in analog signal chains. Use Value: Achieves <1% setting accuracy with zero drift over time and temperature-superior to mechanical trims. |
| Laser Diode Bias Control | Voltage Regulator Output Control |
Use Scenario: Setting precise threshold and modulation currents in fiber-optic transceiver modules. IC Role / Device Role / Timing Role: High-stability current-limiting element in constant-current laser driver feedback paths. Use Value: Maintains ±0.2% relative linearity and 100-year data retention-critical for telecom-grade reliability. |
Use Scenario: Adjusting output voltage of adjustable linear regulators (e.g., LM317) or DC-DC controllers. IC Role / Device Role / Timing Role: Programmable feedback resistor in voltage divider network defining regulated output level. Use Value: Supports remote digital recalibration and multi-voltage system configuration without hardware changes. |
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, 256-tap resolution, 100-year retention | Requires I²C master; lacks 3-wire simplicity and direct GPIO control | Preferred when system already uses I²C bus and higher 0.39% resolution is needed |
| MCP41010-I/P | Single-channel, SPI interface, 10 kΩ, 257-tap resolution, volatile memory only | No nonvolatile storage-wiper resets to mid-scale at power-up unless host reprograms | Selected for cost-sensitive designs where host MCU handles initialization and no power-loss retention is required |
Compared with AD5241BRMZ10 and MCP41010-I/P, the X9317ZS8IT1 offers unique advantages in GPIO-friendly 3-wire control, guaranteed power-up recall without firmware intervention, and industrial-grade temperature stability-making it optimal for embedded systems requiring robust, self-contained analog trimming.
Availability
X9317ZS8IT1 is available at Aetrix Electronics and suitable for LCD bias control, laser diode biasing, and voltage regulator output adjustment requiring stable component supply across industrial temperature ranges and long product lifecycles.
Supply support for X9317ZS8IT1 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 microcontrollers, analog, power, and SoC solutions for automotive, industrial, and enterprise applications.
The X9317 series was designed specifically for precision analog trimming in industrial and communications equipment-emphasizing nonvolatile retention, low noise, and robust 3-wire digital control without protocol overhead.
FAQ
What is the supply voltage range supported by the X9317ZS8IT1?
The X9317ZS8IT1 supports a supply voltage range of 2.7 V to 5.5 V, covering both standard 5 V ±10% and modern low-voltage 3.3 V systems. This dual-range capability allows seamless integration into mixed-voltage designs without level-shifting circuitry. The X9317ZS8IT1 maintains full functionality-including wiper movement, nonvolatile store, and specification compliance-across this entire range.
Does the X9317ZS8IT1 retain its wiper position after power cycling?
Yes, the X9317ZS8IT1 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. The X9317ZS8IT1 requires no external components or host initialization to restore the last programmed setting-enabling true "set-and-forget" analog calibration.
How many wiper tap positions does the X9317ZS8IT1 provide, and what is its resolution?
The X9317ZS8IT1 provides exactly 100 discrete wiper tap positions across its 99-resistor array, yielding 1% resolution in voltage divider applications. This resolution is defined by the minimum increment (MI) of [V(RH) − V(RL)]/99 and is confirmed by absolute linearity of ±1 MI and relative linearity of ±0.2 MI. The X9317ZS8IT1's 100-tap count balances precision with simplicity-avoiding the overhead of higher-resolution devices while meeting most analog trimming requirements.
What package type and footprint does the X9317ZS8IT1 use?
The X9317ZS8IT1 uses an 8-lead narrow-body SOIC package (JEDEC MS-012, drawing M8.15E), measuring 3.9 mm × 4.9 mm with 1.27 mm lead pitch. It is RoHS-compliant, Pb-free, and compatible with standard SOIC reflow profiles. The X9317ZS8IT1's SOIC footprint ensures drop-in replacement capability for legacy designs using mechanical potentiometers or earlier DCP generations, with no PCB redesign required.
Can the X9317ZS8IT1 be used as both a three-terminal potentiometer and a two-terminal variable resistor?
Yes, the X9317ZS8IT1 supports both configurations: as a three-terminal potentiometer (RH–RW–RL) for voltage division and as a two-terminal variable resistor (e.g., RH–RW or RW–RL) for current control. Its internal resistor array and wiper switching network are designed for either topology without derating. In two-terminal mode, the X9317ZS8IT1 maintains its specified end-to-end resistance tolerance, wiper resistance, and temperature coefficients-validated across all operating conditions.
X9317ZS8IT1 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):
- 1k
- 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
X9317ZS8IT1 FAQ
1.How can I place an order for X9317ZS8IT1 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9317ZS8IT1 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 X9317ZS8IT1 reliable?
The price and inventory of X9317ZS8IT1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9317ZS8IT1 is usually 5 days.
3.What payment methods are accepted for X9317ZS8IT1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9317ZS8IT1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9317ZS8IT1?
X9317ZS8IT1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9317ZS8IT1 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 X9317ZS8IT1?
For technical support, including X9317ZS8IT1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9317ZS8IT1 requirements.
6.How does Aetrix verify that X9317ZS8IT1 is sourced from the original manufacturer or authorized distributors?
All X9317ZS8IT1 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 X9317ZS8IT1 meets industry standards.
7.What is the process for return or replacement of X9317ZS8IT1?
All X9317ZS8IT1 units undergo pre-shipment inspection (PSI). If there is an issue with X9317ZS8IT1, 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 X9317ZS8IT1 part is unused and in its original packaging.
Return procedure for X9317ZS8IT1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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