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Renesas X9317UM8IZ-2.7
- Part No.:
- X9317UM8IZ-2.7
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
X9317UM8IZ-2.7.pdf
- Description:
- IC DGTL POT 50KOHM 100TAP 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,561
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Product details
Overview
X9317UM8IZ-2.7 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 trimming applications.
For engineers reviewing the X9317UM8IZ-2.7 datasheet, X9317UM8IZ-2.7 pinout, X9317UM8IZ-2.7 application, or X9317UM8IZ-2.7 equivalent, key selection considerations include its MSOP-8 package, -40°C to +85°C industrial temperature range, 10kΩ end-to-end resistance, 3-wire up/down interface timing (tCYC = 2µs), and nonvolatile store/reload behavior on power-up.
Technical Context
The X9317UM8IZ-2.7 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-divider accuracy under thermal drift.
Control relies exclusively on three digital inputs-CS (chip select), U/D (direction), and INC (edge-triggered increment)-with no clock or data bus required. The device enters standby mode (<5µA) when CS is high, and stores wiper position only when CS rises while INC is high, enabling deterministic initialization after power cycling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-end Resistance | 10kΩ ±20% - defines full-scale analog range for voltage division or current limiting |
| Supply Voltage Range | 2.7V to 5.5V - supports single-supply operation in battery-powered and low-voltage embedded systems |
| Wiper Resistance | ≤400Ω at 2.7V - limits voltage error and loading effect in high-impedance feedback paths |
| Standby Current | <5µA - enables ultra-low-power retention in always-on sensor or bias circuits |
| Resolution | 1% (100 taps) - provides fine-grained adjustment for laser diode bias or LCD contrast control |
| Nonvolatile Endurance | 100,000 write cycles - supports field calibration and lifetime trim updates without wear-out concern |
| Ratiometric Tempco | ±20 ppm/°C - preserves output voltage ratio across -40°C to +85°C, critical for stable reference generation |
Pinout & Package
Package: 8-lead MSOP (M8.118), 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 one tap in direction set by U/D |
| 2 (U/D) | Direction control input | Logic level determines wiper movement direction (up/down) during INC transition |
| 3 (RH) | High terminal | Fixed end of resistor array; connected to VCC or reference voltage in voltage divider mode |
| 4 (VSS) | Ground reference | Return path for all internal logic and analog circuitry; must be low-impedance |
| 5 (RW) | Wiper terminal | Movable contact point; delivers tapped voltage or variable resistance between RH and RL |
| 6 (RL) | Low terminal | Fixed end of resistor array; tied to ground or signal return in most bias applications |
| 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 | Power rail for logic and analog sections; supports 2.7V–5.5V with <5µA standby draw |
Key Features
| Feature | Design Value |
|---|---|
| Nonvolatile wiper storage | Retains last programmed tap position across power cycles, ensuring repeatable startup bias |
| 3-wire serial interface | Eliminates need for SPI/I²C controllers; compatible with GPIO-only microcontrollers |
| Temperature-compensated array | ±20 ppm/°C ratiometric tempco enables stable gain/offset trim over industrial temperature range |
| Make-before-break switching | Prevents open-circuit transients during wiper movement, avoiding glitches in amplifier feedback loops |
| Low-voltage operation | Functional down to 2.7V allows direct integration into 3.3V and single-cell Li-ion systems |
Applications
| LCD Bias Control | Laser Diode Bias Control |
|---|---|
Use Scenario: Adjusting contrast and brightness in automotive or industrial LCD displays under varying ambient temperatures. IC Role / Device Role / Timing Role: Three-terminal potentiometer setting DC bias voltage on LCD segment drivers. Use Value: Nonvolatile recall ensures consistent display appearance at power-on; ±20 ppm/°C ratiometric tempco prevents contrast shift across -40°C to +85°C. | Use Scenario: Setting precise forward current for edge-emitting laser diodes in fiber-optic transceivers. IC Role / Device Role / Timing Role: Two-terminal variable resistor in the laser diode anode current path, configured with external sense resistor. Use Value: 100-tap resolution enables sub-mA current tuning; wiper resistance ≤400Ω minimizes voltage drop error at low VCC (2.7V). |
| Voltage Regulator Output Control | DC Bias Adjustment |
Use Scenario: Trimming output voltage of adjustable LDOs or switching regulators in programmable power supplies. IC Role / Device Role / Timing Role: Resistor divider element (RH–RW–RL) feeding feedback node of regulator error amplifier. Use Value: 1% resolution supports tight output tolerance (±10mV); nonvolatile storage maintains user-defined output after reboot. | Use Scenario: Calibrating input offset of instrumentation amplifiers in sensor signal chains. IC Role / Device Role / Timing Role: Two-terminal variable resistor in op-amp offset null network or gain-setting path. Use Value: Low 5µA standby current avoids loading precision references; ±20% RTOTAL tolerance accommodates production binning without recalibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digitally controlled potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5170BRMZ-10 | I²C interface, 256-tap resolution, 10kΩ, 2.7V–5.5V, same MSOP-8 package | Requires I²C master; higher resolution but lacks native nonvolatile store-on-power-up behavior | Choose for systems with existing I²C infrastructure and need for finer granularity than 1% |
| MCP41010-I/P | SPITM interface, 256-tap, 10kΩ, 2.7V–5.5V, 8-pin PDIP/SOIC (not MSOP) | Needs SPI controller; volatile wiper register requires MCU-initiated restore after power-up | Choose when board layout allows SOIC and firmware can manage wiper reload sequence |
Compared with AD5170BRMZ-10 and MCP41010-I/P, the X9317UM8IZ-2.7 offers deterministic power-on state without host intervention, minimal GPIO resource usage (3 pins), and guaranteed ratiometric stability-making it optimal for unattended, low-power, or safety-critical analog trim where reliability trumps resolution.
Availability
X9317UM8IZ-2.7 is available at Aetrix Electronics and suitable for LCD bias control, laser diode current regulation, and voltage regulator output trimming requiring stable component supply across industrial temperature environments.
Supply support for X9317UM8IZ-2.7 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 specializing in microcontrollers, analog power, and mixed-signal solutions for automotive, industrial, and IoT applications.
The X9317 product line delivers solid-state digital potentiometers optimized for precision analog trimming in space-constrained, low-power, and thermally demanding systems-emphasizing nonvolatile retention, wide supply range, and robust interface simplicity.
FAQ
What is the operating temperature range for the X9317UM8IZ-2.7?
The X9317UM8IZ-2.7 is rated for -40°C to +85°C, qualifying it for industrial-grade applications including automotive cabin electronics, factory automation sensors, and outdoor communication equipment. This range is validated across all electrical specifications including end-to-end resistance tolerance, wiper resistance, and timing parameters, with no derating required within the specified limits.
Does the X9317UM8IZ-2.7 retain its wiper position after power loss?
Yes, the X9317UM8IZ-2.7 stores the wiper position in nonvolatile memory and automatically recalls it on power-up. This behavior is guaranteed for 100 years of data retention and survives 100,000 store cycles. The device powers up with RW set to the last stored tap position, eliminating need for MCU initialization in bias-critical circuits.
Can the X9317UM8IZ-2.7 operate from a 3.3V supply?
Yes, the X9317UM8IZ-2.7 operates fully across 2.7V to 5.5V, making 3.3V a valid and commonly used supply voltage. At 3.3V, wiper resistance remains ≤400Ω, standby current stays below 5µA, and all AC timing parameters-including tCYC (2µs) and tIW (1–5µs)-are met per datasheet specifications.
What package type is used for the X9317UM8IZ-2.7?
The X9317UM8IZ-2.7 uses an 8-lead MSOP package (JEDEC MO-187-AA compliant, drawing M8.118), with body dimensions 3.0mm × 3.0mm × 1.10mm max height. It features RoHS-compliant matte tin terminations and is qualified for reflow per IPC/JEDEC J-STD-020, supporting both SnPb and Pb-free soldering processes.
How does the 3-wire interface of the X9317UM8IZ-2.7 differ from SPI or I²C?
The X9317UM8IZ-2.7 uses a dedicated 3-wire up/down interface (CS, U/D, INC) with no clock or data lines-unlike SPI or I²C. Wiper movement is controlled by toggling INC while CS is low and U/D sets direction. No address decoding, byte framing, or protocol overhead is required, enabling direct GPIO control from resource-limited MCUs without peripheral drivers.
X9317UM8IZ-2.7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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:
- 2.7V ~ 5.5V
- Features:
- -
- Tolerance:
- ±20%
- Temperature Coefficient (Typ):
- ±300ppm/°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-MSOP
- Operating Temperature:
- -40°C ~ 85°C
- Resistance - Wiper (Ohms) (Typ):
- 400
X9317UM8IZ-2.7 FAQ
1.How can I place an order for X9317UM8IZ-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9317UM8IZ-2.7 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 X9317UM8IZ-2.7 reliable?
The price and inventory of X9317UM8IZ-2.7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9317UM8IZ-2.7 is usually 5 days.
3.What payment methods are accepted for X9317UM8IZ-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9317UM8IZ-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9317UM8IZ-2.7?
X9317UM8IZ-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9317UM8IZ-2.7 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 X9317UM8IZ-2.7?
For technical support, including X9317UM8IZ-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9317UM8IZ-2.7 requirements.
6.How does Aetrix verify that X9317UM8IZ-2.7 is sourced from the original manufacturer or authorized distributors?
All X9317UM8IZ-2.7 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 X9317UM8IZ-2.7 meets industry standards.
7.What is the process for return or replacement of X9317UM8IZ-2.7?
All X9317UM8IZ-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with X9317UM8IZ-2.7, 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 X9317UM8IZ-2.7 part is unused and in its original packaging.
Return procedure for X9317UM8IZ-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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