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Renesas X9317US8IZT1
- Part No.:
- X9317US8IZT1
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
X9317US8IZT1.pdf
- Description:
- IC DGTL POT 50KOHM 100TAP 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,006
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Product details
Overview
X9317US8IZT1 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 functions as a three-terminal voltage divider or two-terminal variable resistor for precision analog trimming in industrial-grade applications operating from -40°C to +85°C.
For engineers reviewing the X9317US8IZT1 datasheet, X9317US8IZT1 pinout, X9317US8IZT1 application, or X9317US8IZT1 equivalent, key selection considerations include end-to-end resistance tolerance (±20%), wiper resistance (200–400 Ω at 5 V), standby current (<5 µA), ratiometric temperature coefficient (±20 ppm/°C), and SOIC-8 RoHS-compliant packaging.
Technical Context
The X9317US8IZT1 integrates a 7-bit up/down counter, decoder, and nonvolatile memory to control wiper position across 100 discrete taps. Its solid-state architecture eliminates mechanical wear and enables repeatable, temperature-compensated resistance adjustment via CS, U/D, and INC signals.
It operates over VCC = 2.7 V to 5.5 V and supports both voltage-divider (RH–RW–RL) and variable-resistor (RW–RL or RW–RH) configurations. Wiper position is retained for 100 years and withstands 100,000 data changes per bit, with make-before-break switching ensuring continuity during tap transitions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-end Resistance | 50 kΩ ±20% - defines full-scale analog range for gain/offset trim circuits |
| Wiper Resistance | 200–400 Ω at 5 V - impacts minimum achievable output impedance and signal integrity |
| Supply Voltage Range | 2.7 V to 5.5 V - enables compatibility with 3.3 V and 5 V logic/system rails |
| Standby Current | <5 µA - supports ultra-low-power operation in battery-backed or energy-sensitive systems |
| Ratiometric Tempco | ±20 ppm/°C - ensures stable voltage division ratio across -40°C to +85°C |
| Resolution | 1% (100-tap) - provides 9.9 mV step resolution across 1 V span for fine analog tuning |
| Nonvolatile Retention | 100 years - guarantees power-up to last-trimmed setting without external EEPROM or MCU intervention |
| Wiper Current Limit | ±4.4 mA - constrains maximum allowable load current to prevent wiper degradation |
Pinout & Package
Package: 8-lead narrow-body SOIC (M8.15E), RoHS-compliant, -40°C to +85°C operating range.
| 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 |
| 2 (U/D) | Direction control | Logic level selects wiper increment (+) or decrement (-) on each INC edge |
| 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; must be low-impedance for noise immunity |
| 5 (RW) | Wiper terminal | Movable contact point; output node for adjustable voltage or resistance |
| 6 (RL) | Low terminal | Fixed end of resistor array; connects to lower potential (e.g., ground) in divider mode |
| 7 (CS) | Chip select | Active-low enable; HIGH initiates nonvolatile store when INC is also HIGH |
| 8 (VCC) | Supply voltage | Power rail for internal logic and resistor array; requires local 0.1 µF decoupling |
Key Features
| Feature | Design Value |
|---|---|
| Nonvolatile wiper storage | Retains last-set tap position across power cycles without external memory or firmware overhead |
| Temperature-compensated resistor array | ±300 ppm/°C absolute RTOTAL drift minimized by on-die compensation; ±20 ppm/°C ratiometric stability preserves divider accuracy |
| Make-before-break wiper switching | Prevents open-circuit transients during tap transitions-critical for biasing sensitive analog nodes |
| Low-noise performance | -120 dBV (ref 1 kHz) - suitable for audio bias, sensor conditioning, and precision reference circuits |
| Industrial temperature grade | -40°C to +85°C operation validated - supports deployment in automotive sub-systems and industrial controls |
| 3-wire serial interface | No clock or data lines required beyond CS, U/D, and INC - simplifies MCU GPIO usage and reduces BOM count |
Applications
| LCD Bias Control | Laser Diode Bias Control |
|---|---|
Use Scenario: Adjusting VCOM or gate-source voltage in TFT-LCD driver ICs to optimize contrast and grayscale uniformity. IC Role / Device Role / Timing Role: Three-terminal potentiometer providing stable, programmable DC bias voltage referenced to panel common. Use Value: Enables factory calibration and dynamic gamma correction without manual trimpots; ±20 ppm/°C ratiometric stability maintains display consistency across temperature. |
Use Scenario: Setting precise forward current for laser diodes in fiber-optic transceivers or optical sensing modules. IC Role / Device Role / Timing Role: Two-terminal variable resistor in series with laser cathode to regulate bias current. Use Value: Nonvolatile storage ensures safe startup current limit after power loss; 100-kΩ max resistance accommodates typical 10–30 mA laser drive ranges. |
| Voltage Regulator Output Trim | DC Offset Adjustment in Signal Chains |
Use Scenario: Fine-tuning output voltage of adjustable LDOs or switching regulators (e.g., LM317, TLV7xx) in power management subsystems. IC Role / Device Role / Timing Role: Three-terminal potentiometer replacing mechanical trimmer in feedback divider network. Use Value: Eliminates field recalibration labor; ±20% RTOTAL tolerance allows design margin while 1% resolution supports <10 mV output adjustments. |
Use Scenario: Nulling DC offset in op-amp-based instrumentation amplifiers, ADC front-ends, or sensor signal conditioners. IC Role / Device Role / Timing Role: Two-terminal variable resistor in op-amp summing junction or offset null path. Use Value: Low 5 µA standby current avoids loading high-impedance sensor nodes; -120 dBV noise prevents injection into µV-level measurement paths. |
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, 50 kΩ, ±30% RTOTAL tolerance, no nonvolatile store on power-up | Requires MCU I²C support; lacks automatic recall - needs firmware initialization | Preferred when higher resolution and digital bus integration outweigh need for zero-firmware power-up behavior |
| MCP45HV51-503 | Up/down interface, 256-tap, 50 kΩ, ±20% RTOTAL, volatile wiper only (no NV memory) | Needs external microcontroller to reload wiper position at boot; no autonomous recall | Chosen where cost sensitivity and 256-step granularity justify added firmware complexity and external memory dependency |
Compared with X9317US8IZT1, AD5175BRMZ-50 offers finer resolution but requires I²C infrastructure and lacks auto-recall, while MCP45HV51-503 delivers more taps but forfeits nonvolatile retention-making X9317US8IZT1 optimal for self-contained, low-pin-count trimming where deterministic power-up behavior is mandatory.
Availability
X9317US8IZT1 is available at Aetrix Electronics and suitable for LCD bias control, laser diode bias control, voltage regulator output trim, and DC offset adjustment requiring stable component supply across industrial temperature grades and long-lifecycle production.
Supply support for X9317US8IZT1 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 IoT applications.
The X9317 family was designed specifically for solid-state replacement of mechanical potentiometers in analog trimming applications demanding reliability, nonvolatile setting retention, and minimal board space-targeting industrial controls, optical modules, and precision power systems.
FAQ
What is the guaranteed operating temperature range for the X9317US8IZT1?
The X9317US8IZT1 is rated for continuous operation from -40°C to +85°C, as confirmed in the Ordering Information table (Page 2) and Absolute Maximum Ratings (Page 4) of the FN8183 Rev.10.01 datasheet. This industrial-grade specification applies to all electrical parameters unless otherwise noted, and the device is qualified per Renesas' industrial reliability standards.
Does the X9317US8IZT1 retain its wiper position after power cycling?
Yes, the X9317US8IZT1 stores the wiper position in nonvolatile memory and automatically recalls it upon power-up. This behavior is guaranteed for 100 years and validated across the full -40°C to +85°C temperature range, eliminating the need for MCU initialization or external memory to restore settings.
What is the maximum wiper current rating for the X9317US8IZT1?
The X9317US8IZT1 has a maximum wiper current rating of ±4.4 mA, specified under "Potentiometer Specifications" (Page 4). Exceeding this value risks long-term degradation of the wiper switch elements and is strictly limited by the internal structure of the 99-resistor array and CMOS switch network.
Can the X9317US8IZT1 be used in a two-terminal variable resistor configuration?
Yes, the X9317US8IZT1 supports two-terminal operation using RW and either RH or RL, as explicitly shown in Figure 4 ("Two Terminal Variable Resistor") and described in the Applications section (Page 1). This mode is commonly used for current-limiting or gain-setting in amplifier feedback paths.
Is the X9317US8IZT1 RoHS-compliant and lead-free?
Yes, the X9317US8IZT1 is Pb-free and RoHS-compliant, as stated in the "Features" section (Page 1) and confirmed in the "Ordering Information" notes (Page 2, Note 2). It uses 100% matte tin plating (e3 termination finish) and meets IPC/JEDEC J-STD-020 reflow requirements for lead-free assembly.
X9317US8IZT1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 8-SOIC (0.154", 3.90mm 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:
- 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
X9317US8IZT1 FAQ
1.How can I place an order for X9317US8IZT1 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9317US8IZT1 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 X9317US8IZT1 reliable?
The price and inventory of X9317US8IZT1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9317US8IZT1 is usually 5 days.
3.What payment methods are accepted for X9317US8IZT1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9317US8IZT1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9317US8IZT1?
X9317US8IZT1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9317US8IZT1 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 X9317US8IZT1?
For technical support, including X9317US8IZT1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9317US8IZT1 requirements.
6.How does Aetrix verify that X9317US8IZT1 is sourced from the original manufacturer or authorized distributors?
All X9317US8IZT1 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 X9317US8IZT1 meets industry standards.
7.What is the process for return or replacement of X9317US8IZT1?
All X9317US8IZT1 units undergo pre-shipment inspection (PSI). If there is an issue with X9317US8IZT1, 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 X9317US8IZT1 part is unused and in its original packaging.
Return procedure for X9317US8IZT1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
X9317US8IZT1 Tags
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MCP4018T-103E/LT
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MCP4011T-103E/SN
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