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Renesas X9317UPI-2.7
- Part No.:
- X9317UPI-2.7
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
X9317UPI-2.7.pdf
- Description:
- IC DGTL POT 50KOHM 100TAP 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,036
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Product details
Overview
X9317UPI-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%, low standby current (<5 µA), and wiper resistance of 400 Ω (typ.) at 2.7 V. It serves as a three-terminal voltage divider or two-terminal variable resistor in precision analog trim applications.
For engineers reviewing the X9317UPI-2.7 datasheet, X9317UPI-2.7 pinout, X9317UPI-2.7 application, or X9317UPI-2.7 equivalent, key selection criteria include its 3-wire up/down interface timing (tCYC = 2 µs), ratiometric temperature coefficient (±20 ppm/°C), noise performance (–120 dBV), absolute linearity (±1 MI), and compatibility with commercial temperature range (0°C to +70°C) in MSOP-8 packaging.
Technical Context
The X9317UPI-2.7 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's ratiometric temperature coefficient minimizes voltage-divider drift under thermal variation.
Operation relies on three digital control lines-CS (chip select), U/D (direction), and INC (edge-triggered increment)-with store-on-CS↑/INC↑ behavior. The device powers up to the last stored wiper position, enabling deterministic startup without host initialization overhead.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-end resistance | 10 kΩ ±20% - defines full-scale analog range and power dissipation limit (10 mW max) |
| Supply voltage range | 2.7 V to 5.5 V - enables direct interface with 3.3 V and 5 V systems without level-shifting |
| Standby current | <5 µA - supports ultra-low-power battery-operated or always-on bias control circuits |
| Wiper resistance | 400 Ω (typ.) at 2.7 V - impacts minimum achievable output impedance and signal fidelity in high-impedance nodes |
| Absolute linearity | ±1 MI (Minimum Increment = [V(RH)−V(RL)]/99) - ensures ≤1% voltage error across full wiper sweep |
| Ratiometric tempco | ±20 ppm/°C - guarantees stable voltage division ratio over temperature, critical for sensor bias and reference trimming |
| Interface timing (tCYC) | 2 µs minimum INC cycle time - supports fast digital trimming updates without MCU wait states |
| Nonvolatile endurance | 100,000 data changes per bit - supports field calibration cycles over product lifetime |
Pinout & Package
Package: 8-lead MSOP (M8.118), RoHS-compliant, 3.0 mm × 3.0 mm footprint, 0.65 mm pitch, 1.10 mm max height.
| 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 input | High = wiper increments toward RH; Low = decrements toward RL; may be changed dynamically during CS active |
| 3 (RH) | High terminal | Fixed end of resistor array; connected to higher potential in voltage divider configuration |
| 4 (VSS) | Ground reference | Return path for all internal logic and analog circuitry; must be low-impedance for noise immunity |
| 5 (RW) | Wiper terminal | Movable tap point; series resistance ≤400 Ω at 2.7 V determines loading effect on downstream stages |
| 6 (RL) | Low terminal | Fixed end of resistor array; connected to lower potential (e.g., ground or negative rail) in voltage divider |
| 7 (CS) | Chip select | Active-low enable; HIGH with INC HIGH stores current wiper position to nonvolatile memory |
| 8 (VCC) | Supply voltage | 2.7–5.5 V power rail; powers logic, memory, and resistor array; decoupling required within 1 cm |
Key Features
| Feature | Design Value |
|---|---|
| Nonvolatile wiper storage | Retains last position across power cycles; eliminates need for host MCU to reinitialize trim on boot |
| 3-wire serial interface | Requires only CS, U/D, and INC - no clock or data lines; simplifies PCB routing and GPIO usage |
| Temperature-compensated array | ±20 ppm/°C ratiometric tempco ensures stable voltage division in ambient temperature shifts |
| Low-noise analog path | –120 dBV noise floor (1 kHz ref) supports precision DC biasing without introducing measurable ripple |
| Make-before-break switching | Prevents open-circuit transients during wiper movement; avoids glitches in feedback loops or amplifier inputs |
| Commercial temperature grade | 0°C to +70°C operation - validated for industrial control panels, consumer displays, and embedded instrumentation |
Applications
| LCD Bias Control | Laser Diode Bias Control |
|---|---|
Use Scenario: Adjusting VCOM or gamma voltage in TFT-LCD driver ICs to maintain consistent contrast and grayscale across panel temperature variations. IC Role / Device Role / Timing Role: Three-terminal potentiometer configured as adjustable voltage divider between VDD and ground, feeding high-impedance bias node. Use Value: ±20 ppm/°C ratiometric tempco maintains stable division ratio, reducing factory calibration labor and improving display uniformity over operating temperature. |
Use Scenario: Setting precise bias current for laser diode drivers in optical transceivers or barcode scanners where output power stability is critical. IC Role / Device Role / Timing Role: Two-terminal variable resistor in series with laser diode cathode or in feedback path of constant-current regulator. Use Value: 100-tap resolution and ±1 MI linearity enable sub-1% current adjustment accuracy; nonvolatile storage preserves calibrated threshold after power cycling. |
| Voltage Regulator Output Trim | DC Offset Adjustment in Signal Chain |
Use Scenario: Fine-tuning output voltage of adjustable LDOs or DC-DC converters in power management subsystems to meet tight tolerance requirements (e.g., ±10 mV). IC Role / Device Role / Timing Role: Resistor in feedback divider network (R1/R2) of TLVH431 or similar shunt reference-based regulator. Use Value: 10 kΩ end-to-end resistance matches typical feedback divider impedances; low 400 Ω wiper resistance prevents loading-induced regulation error. |
Use Scenario: Nulling DC offset in op-amp-based instrumentation amplifiers or sensor signal conditioning paths before ADC sampling. IC Role / Device Role / Timing Role: Two-terminal variable resistor in summing junction or offset null port of precision op-amp (e.g., LMC7101). Use Value: –120 dBV noise floor avoids injecting measurable interference into µV-level signals; <5 µA standby current prevents leakage-induced drift in high-Z nodes. |
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, 10 kΩ, 2.7–5.5 V, but no nonvolatile storage - requires external EEPROM or host retention | Suitable for systems with I²C bus availability and host-controlled calibration; unsuitable for standalone power-cycle recovery | Select when I²C infrastructure exists and deterministic power-up state is managed externally |
| MCP41HV51-103 | 100 kΩ end-to-end resistance, SPI interface, 2.7–5.5 V, volatile wiper register only - no nonvolatile memory | Better suited for high-voltage bias (up to 36 V on RH/RL) but lacks automatic power-up recall | Choose for HV analog trim where wiper position is set once per session and retained by host firmware |
Compared with AD5170BRMZ-10 and MCP41HV51-103, the X9317UPI-2.7 uniquely delivers guaranteed power-up to last-stored setting without host intervention, making it optimal for unattended or safety-critical trim functions where deterministic startup behavior is mandatory.
Availability
X9317UPI-2.7 is available at Aetrix Electronics and suitable for LCD bias control, laser diode bias adjustment, and voltage regulator output trimming requiring stable component supply, long-term calibration retention, and commercial-temperature-grade reliability.
Supply support for X9317UPI-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 connectivity solutions for automotive, industrial, and IoT applications.
The X9317UPI-2.7 belongs to Renesas' XDCP™ (Digitally Controlled Potentiometer) family, designed specifically for replacing mechanical trimpots in precision analog trimming applications where reliability, repeatability, and nonvolatile setting retention are essential.
FAQ
What is the operating temperature range for the X9317UPI-2.7?
The X9317UPI-2.7 is rated for commercial temperature operation from 0°C to +70°C. This range is confirmed in the Ordering Information table (Page 2) and applies to all electrical specifications unless otherwise noted. It is not rated for industrial (–40°C to +85°C) operation - that grade uses part numbers ending in "IZ", such as X9317WM8IZ-2.7.
Does the X9317UPI-2.7 retain its wiper position after power loss?
Yes, the X9317UPI-2.7 stores the wiper position in nonvolatile memory and automatically recalls it on power-up. This behavior is inherent to the device architecture and requires no external components. The datasheet specifies 100-year data retention and 100,000 write cycles, ensuring reliable long-term calibration in the X9317UPI-2.7.
What package type does the X9317UPI-2.7 use?
The X9317UPI-2.7 uses an 8-lead MSOP package (package drawing M8.118), measuring 3.0 mm × 3.0 mm with 0.65 mm lead pitch. Pin configuration matches standard MSOP top-view orientation, with Pin 1 marked by a dot or notch. This compact RoHS-compliant package supports high-density PCB layouts in space-constrained applications.
Can the X9317UPI-2.7 operate from a 3.3 V supply?
Yes, the X9317UPI-2.7 operates across 2.7 V to 5.5 V, fully supporting standard 3.3 V logic and analog rails. At 3.3 V, its standby current remains below 5 µA, wiper resistance is ~300 Ω (interpolated from 2.7 V and 5 V specs), and all timing parameters (e.g., tCYC = 2 µs) remain valid - making the X9317UPI-2.7 compatible with modern low-voltage embedded systems.
How is the wiper position stored in the X9317UPI-2.7?
The X9317UPI-2.7 stores the wiper position when CS transitions from LOW to HIGH while the INC input is held HIGH. This store command writes the current 7-bit counter value to nonvolatile memory. No additional commands or delays are needed - the X9317UPI-2.7 completes the write autonomously within 10 ms (tWR), then enters standby mode.
X9317UPI-2.7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- 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:
- Through Hole
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-PDIP
- Operating Temperature:
- -40°C ~ 85°C
- Resistance - Wiper (Ohms) (Typ):
- 400
X9317UPI-2.7 FAQ
1.How can I place an order for X9317UPI-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9317UPI-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 X9317UPI-2.7 reliable?
The price and inventory of X9317UPI-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 X9317UPI-2.7 is usually 5 days.
3.What payment methods are accepted for X9317UPI-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9317UPI-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9317UPI-2.7?
X9317UPI-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9317UPI-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 X9317UPI-2.7?
For technical support, including X9317UPI-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9317UPI-2.7 requirements.
6.How does Aetrix verify that X9317UPI-2.7 is sourced from the original manufacturer or authorized distributors?
All X9317UPI-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 X9317UPI-2.7 meets industry standards.
7.What is the process for return or replacement of X9317UPI-2.7?
All X9317UPI-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with X9317UPI-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 X9317UPI-2.7 part is unused and in its original packaging.
Return procedure for X9317UPI-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
X9317UPI-2.7 Tags
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