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Renesas X9317UV8IZ-2.7
- Part No.:
- X9317UV8IZ-2.7
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
X9317UV8IZ-2.7.pdf
- Description:
- IC DGTL POT 50KOHM 100TAP 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:100
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Product details
Overview
X9317UV8IZ-2.7 from Renesas Electronics is a digitally controlled potentiometer (XDCP™) with 100 wiper tap points, nonvolatile wiper position storage, and 3-wire up/down serial interface. It features 50 kΩ end-to-end resistance, operates from 2.7 V to 5.5 V, and delivers ±0.2 MI relative linearity for precision analog trimming in voltage regulator feedback networks.
For engineers reviewing the X9317UV8IZ-2.7 datasheet, X9317UV8IZ-2.7 pinout, X9317UV8IZ-2.7 application, or X9317UV8IZ-2.7 equivalent, this device supports low-noise DC bias adjustment, laser diode current control, and gain/offset trim where power-up repeatability and temperature-stable ratiometric performance are required.
Technical Context
The X9317UV8IZ-2.7 implements a 99-element resistor array with make-before-break wiper switching, enabling glitch-free tap transitions. Its 7-bit counter drives a decoder that selects one of 100 discrete wiper positions, with wiper resistance specified at 400 Ω (max) at 2.7 V supply.
Nonvolatile memory stores the last wiper position with 100-year data retention and 100,000-cycle endurance. The device uses a 3-wire CS/U/D/INC interface with negative-edge-triggered INC and direction-controlled U/D logic, requiring no external clock or address lines.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-end Resistance | 50 kΩ ±20% - defines full-scale analog range for voltage divider or variable resistor configurations |
| 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 tuning |
| Relative Linearity | ±0.2 MI - ensures monotonic step response critical for closed-loop calibration stability |
| Standby Current | <5 µA - minimizes quiescent power in battery-backed or always-on analog subsystems |
| Ratiometric Tempco | ±20 ppm/°C - maintains stable voltage division ratio across -40°C to +85°C industrial range |
| Wiper Resistance | 400 Ω max at 2.7 V - limits insertion error in high-impedance feedback paths |
| Nonvolatile Store Time | 5–10 ms - defines minimum CS high pulse width needed to commit wiper position to memory |
Pinout & Package
Package: 8-lead TSSOP (RoHS-compliant, M8.173 drawing), 3.0 mm × 4.4 mm footprint, 1.2 mm max height, -40°C to +85°C operating range.
| 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 (VCC) | Positive supply | 2.7–5.5 V analog/digital rail; powers internal logic, memory, and resistor array |
| 3 (U/D) | Direction control | Logic level sets wiper movement direction during INC transitions (HIGH = up, LOW = down) |
| 4 (VSS) | Ground reference | Analog and digital common return; must be low-impedance for noise-sensitive applications |
| 5 (RH) | High terminal | Fixed end of resistor array; connects to higher potential in voltage divider mode |
| 6 (RW) | Wiper output | Movable terminal; delivers tapped voltage/current; series resistance ≤400 Ω at 2.7 V |
| 7 (RL) | Low terminal | Fixed end of resistor array; connects to lower potential or ground in voltage divider mode |
| 8 (CS) | Chip select | Active-low enable; HIGH initiates nonvolatile store when INC is also HIGH |
Key Features
| Feature | Design Value |
|---|---|
| Nonvolatile wiper storage | Retains last position across power cycles with 100-year data retention and 100k write cycles |
| 3-wire serial interface | Eliminates need for clock, address, or data bus-reduces MCU GPIO count and PCB routing complexity |
| Temperature-compensated array | ±20 ppm/°C ratiometric tempco ensures stable voltage division over full industrial temperature range |
| Make-before-break switching | Prevents open-circuit glitches during wiper transitions, critical for stable feedback loop operation |
| Low 2.7 V operation | Enables direct use in 3.3 V systems without regulator overhead; standby current remains <5 µA |
| End-to-end resistance tolerance | ±20% allows predictable worst-case gain/offset bounds in trimming circuits without individual calibration |
Applications
| LCD Bias Control | Laser Diode Bias Control |
|---|---|
|
Use Scenario: Adjusting VCOM voltage in TFT-LCD panels to minimize image flicker and improve grayscale uniformity. IC Role / Device Role / Timing Role: Three-terminal potentiometer configured as voltage divider between VDD and ground, with RW feeding VCOM amplifier. Use Value: Nonvolatile storage ensures consistent factory-set bias on power-up; ±0.2 MI linearity prevents visible banding artifacts. |
Use Scenario: Setting precise bias current for edge-emitting laser diodes in fiber-optic transceivers. IC Role / Device Role / Timing Role: Two-terminal variable resistor in series with laser anode, controlling current via feedback loop. Use Value: 50 kΩ RTOTAL and 400 Ω max wiper resistance enable sub-1% current accuracy; 2.7 V operation matches low-voltage driver ICs. |
| Voltage Regulator Output Trim | DC Offset Adjustment |
|
Use Scenario: Fine-tuning output voltage of adjustable LDOs or DC-DC converters in telecom power modules. IC Role / Device Role / Timing Role: Resistor in feedback divider network (RH–RW–RL), where RW connects to error amplifier input. Use Value: Ratiometric ±20 ppm/°C tempco maintains setpoint accuracy across thermal cycling; 100-tap resolution enables 10 mV steps at 3.3 V output. |
Use Scenario: Nulling input offset voltage in instrumentation amplifiers used for sensor signal conditioning. IC Role / Device Role / Timing Role: Two-terminal variable resistor bridging amplifier inputs to inject compensating current. Use Value: Low 5 µA standby current avoids loading sensitive op-amp nodes; ±0.2 MI linearity ensures repeatable null point across temperature. |
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 taps, 50 kΩ, 2.7–5.5 V; higher resolution but no nonvolatile store on power-up | Requires host firmware to reload wiper position after each power cycle | Choose when I²C bus availability and finer 0.4% step resolution outweigh need for automatic power-up recall |
| MCP45HV51-503E/MS | Up/down interface, 256 taps, 50 kΩ, 4.5–20 V; higher voltage rating but larger 8-lead MSOP package | Supports high-side biasing in >5 V analog rails but lacks ratiometric tempco specification | Choose when system operates above 5.5 V or requires extended voltage headroom beyond X9317UV8IZ-2.7's 5.5 V limit |
Compared with AD5175BRMZ-50 and MCP45HV51-503E/MS, the X9317UV8IZ-2.7 uniquely combines guaranteed power-up wiper recall, ±20 ppm/°C ratiometric stability, and minimal 3-wire control-making it optimal for unattended industrial systems requiring deterministic analog behavior without host intervention.
Availability
X9317UV8IZ-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 automotive, industrial, and telecom production programs.
Supply support for X9317UV8IZ-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 leader delivering microcontrollers, analog power, and SoC solutions for automotive, industrial, and infrastructure markets.
The X9317 series is part of Renesas' XDCP™ digitally controlled potentiometer product line, designed specifically for high-reliability analog trimming in systems demanding nonvolatile setting retention and temperature-stable ratiometric performance.
FAQ
What is the guaranteed power-up behavior of the X9317UV8IZ-2.7?
The X9317UV8IZ-2.7 automatically recalls the last stored wiper position from nonvolatile memory within 5 µs after VCC stabilizes. This behavior is guaranteed across its full -40°C to +85°C operating range and requires no host initialization sequence, making X9317UV8IZ-2.7 ideal for fail-safe analog subsystems.
Does the X9317UV8IZ-2.7 support true 3.3 V operation without level shifters?
Yes, the X9317UV8IZ-2.7 is fully specified for 2.7 V to 5.5 V operation, including all electrical parameters at 3.3 V nominal. Its VIH threshold is 0.7 × VCC (min 2.31 V) and VIL is 0.1 × VCC (max 0.33 V), ensuring direct interoperability with standard 3.3 V CMOS logic without external translation circuitry.
How does the ratiometric temperature coefficient benefit voltage divider applications using the X9317UV8IZ-2.7?
The X9317UV8IZ-2.7's ±20 ppm/°C ratiometric temperature coefficient ensures the RH–RW/RL–RW voltage division ratio remains stable across temperature. In feedback networks like voltage regulators, this directly translates to <±0.2% output voltage drift over -40°C to +85°C-eliminating need for software compensation or additional calibration hardware.
Can the X9317UV8IZ-2.7 be used in two-terminal variable resistor mode with grounded RL?
Yes, the X9317UV8IZ-2.7 supports two-terminal operation by connecting RL to ground and using RH and RW as the variable resistance terminals. In this configuration, the device delivers 0–50 kΩ resistance with ≤400 Ω wiper resistance at 2.7 V, maintaining ±0.2 MI linearity and nonvolatile position recall-ideal for laser diode current control loops.
What is the maximum allowable voltage on RH, RW, or RL terminals relative to VSS for the X9317UV8IZ-2.7?
The absolute maximum voltage on RH, RW, or RL terminals is +6 V relative to VSS, independent of VCC. This allows safe operation in applications where the potentiometer is placed in high-side configurations or exposed to transient overvoltage conditions, provided total power dissipation remains within the 10 mW limit for 50 kΩ devices.
X9317UV8IZ-2.7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- 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:
- 2.7V ~ 5.5V
- Features:
- -
- Tolerance:
- ±20%
- Temperature Coefficient (Typ):
- ±300ppm/°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-TSSOP
- Operating Temperature:
- -40°C ~ 85°C
- Resistance - Wiper (Ohms) (Typ):
- 400
X9317UV8IZ-2.7 FAQ
1.How can I place an order for X9317UV8IZ-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9317UV8IZ-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 X9317UV8IZ-2.7 reliable?
The price and inventory of X9317UV8IZ-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 X9317UV8IZ-2.7 is usually 5 days.
3.What payment methods are accepted for X9317UV8IZ-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9317UV8IZ-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9317UV8IZ-2.7?
X9317UV8IZ-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9317UV8IZ-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 X9317UV8IZ-2.7?
For technical support, including X9317UV8IZ-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9317UV8IZ-2.7 requirements.
6.How does Aetrix verify that X9317UV8IZ-2.7 is sourced from the original manufacturer or authorized distributors?
All X9317UV8IZ-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 X9317UV8IZ-2.7 meets industry standards.
7.What is the process for return or replacement of X9317UV8IZ-2.7?
All X9317UV8IZ-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with X9317UV8IZ-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 X9317UV8IZ-2.7 part is unused and in its original packaging.
Return procedure for X9317UV8IZ-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
X9317UV8IZ-2.7 Tags
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