My Inquiry
My Account
Renesas X9317UM8I-2.7
- Part No.:
- X9317UM8I-2.7
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
X9317UM8I-2.7.pdf
- Description:
- IC DGTL POT 50KOHM 100TAP 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:359
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
X9317UM8I-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 99 resistive elements, ±20% end-to-end resistance tolerance, and operates from 2.7V to 5.5V supply. Used for precision DC bias adjustment and laser diode bias control in industrial temperature range (-40°C to +85°C).
For engineers reviewing the X9317UM8I-2.7 datasheet, X9317UM8I-2.7 pinout, X9317UM8I-2.7 application, or X9317UM8I-2.7 equivalent, key selection considerations include its 10kΩ total resistance, MSOP-8 package, low standby current (<5µA), and guaranteed nonvolatile recall on power-up - critical for unattended embedded trimming systems.
Technical Context
The X9317UM8I-2.7 implements a 7-bit up/down counter driving a decoder that selects one of 100 wiper positions across a 99-element resistor array. Its "make-before-break" switching ensures glitch-free transitions during wiper movement, and the wiper terminal exhibits ≤400Ω resistance at 2.7V supply.
Control logic responds to CS (active-low chip select), U/D (direction), and edge-triggered INC inputs. A store operation occurs only when CS rises while INC is high, writing the current wiper position to nonvolatile memory with 10ms typical write time and 100-year data retention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Total Resistance (RTOTAL) | 10 kΩ ±20% - defines full-scale voltage division ratio and power dissipation limit (10 mW max) |
| Supply Voltage Range | 2.7 V to 5.5 V - enables direct compatibility with 3.3V and 5V systems without level-shifting |
| Wiper Resolution | 100 taps (1% step size) - provides 99 discrete resistance ratios between RH and RL terminals |
| Standby Current | <5 µA - supports ultra-low-power battery-backed or energy-harvesting applications |
| Nonvolatile Retention | 100 years - guarantees factory-trimmed or field-calibrated settings survive long-term storage |
| Endurance | 100,000 data changes per bit - supports repeated recalibration over product lifetime |
| Temperature Range | -40°C to +85°C - qualified for industrial-grade operation without derating |
Pinout & Package
Package: 8-lead MSOP (Moisture Sensitivity Level 1, RoHS-compliant, JEDEC MO-187-AA compliant; body dimensions 3.0 mm × 3.0 mm × 1.1 mm max).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (INC) | Increment clock input | Negative-edge-triggered control signal; toggling moves wiper up/down based on U/D state |
| 2 (U/D) | Direction control input | High = wiper increments toward RH; Low = wiper decrements toward RL |
| 3 (RH) | High terminal | Fixed end of resistor array; connects to higher potential in voltage divider configurations |
| 4 (VSS) | Ground reference | Return path for all internal logic and analog circuitry; must be low-impedance |
| 5 (RW) | Wiper terminal | Movable contact point; series resistance ≤400Ω at 2.7V enables low-error analog feedback paths |
| 6 (RL) | Low terminal | Fixed end of resistor array; connects to lower potential or ground in trim applications |
| 7 (CS) | Chip select input | Active-low enable; rising edge with INC high initiates nonvolatile store operation |
| 8 (VCC) | Power supply | 2.7–5.5V CMOS-compatible supply; powers logic, memory, and resistor array simultaneously |
Key Features
| Feature | Design Value |
|---|---|
| Solid-state potentiometer architecture | Eliminates mechanical wear, drift, and contamination sensitivity inherent in electro-mechanical pots |
| Nonvolatile wiper position storage | Guarantees repeatable startup behavior without host MCU initialization overhead |
| Temperature-compensated resistor array | ±300 ppm/°C absolute TC and ±20 ppm/°C ratiometric TC ensure stable voltage division across -40°C to +85°C |
| Low-noise analog performance | -120 dBV noise floor (1 kHz ref.) supports precision sensor biasing and audio-level gain control |
| Three-terminal or two-terminal configuration | Supports both voltage divider (RH–RW–RL) and variable resistor (RW–RL or RW–RH) topologies |
Applications
| LCD Bias Control | DC Bias Adjustment |
|---|---|
Use Scenario: Setting optimal VCOM and gamma correction voltages in TFT-LCD driver circuits. IC Role / Device Role / Timing Role: Three-terminal potentiometer providing stable, programmable DC offset to column driver ICs. Use Value: Enables factory calibration and dynamic contrast tuning without manual potentiometers or EEPROM-based DACs. |
Use Scenario: Fine-tuning reference voltage levels in precision analog front-ends for industrial sensors. IC Role / Device Role / Timing Role: Two-terminal variable resistor in op-amp feedback loop for adjustable gain/offset compensation. Use Value: Maintains calibrated bias after power cycles due to nonvolatile recall, reducing system recalibration frequency. |
| Laser Diode Bias Control | Voltage Regulator Output Control |
Use Scenario: Adjusting constant-current source setpoint for telecom laser diodes operating at -40°C to +85°C ambient. IC Role / Device Role / Timing Role: High-stability, low-drift resistor in current-sense feedback path of laser driver IC. Use Value: ±20 ppm/°C ratiometric TC minimizes output current drift over temperature, meeting Class I laser safety margins. |
Use Scenario: Programmable output voltage setting for adjustable LDOs in FPGA power management subsystems. IC Role / Device Role / Timing Role: Resistor network element defining feedback divider ratio for voltage regulation loop. Use Value: Allows firmware-controlled output voltage scaling (e.g., 1.2V → 1.35V) without hardware change or BOM revision. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digitally controlled potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5171BRMZ-10 | I²C interface, 64-tap resolution, 10kΩ RTOTAL, 2.7–5.5V supply, but no nonvolatile memory | Requires external MCU to reinitialize wiper position on every power-up | Preferred where I²C bus availability and higher speed updates outweigh need for autonomous recall |
| MCP41HV51-103 | 100-tap SPI interface, 10kΩ RTOTAL, 4.5–20V supply, volatile-only memory | Supports higher-voltage bias rails but lacks power-on default retention | Chosen for high-side biasing in 12V/15V systems where nonvolatility is managed externally |
Compared with AD5171BRMZ-10 and MCP41HV51-103, the X9317UM8I-2.7 uniquely delivers guaranteed power-on wiper recall without host intervention - essential for fail-safe analog trimming in remote or maintenance-free deployments.
Availability
X9317UM8I-2.7 is available at Aetrix Electronics and suitable for LCD bias control, laser diode biasing, and voltage regulator output trimming requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for X9317UM8I-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 IoT applications with emphasis on reliability and long-term support.
The X9317 family was designed specifically for solid-state replacement of mechanical potentiometers in precision analog trimming applications demanding nonvolatile setting retention and wide-temperature operation.
FAQ
What is the guaranteed power-on wiper position behavior of the X9317UM8I-2.7?
The X9317UM8I-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 external initialization sequence - a core differentiator versus volatile digital potentiometers.
Does the X9317UM8I-2.7 support true three-wire serial communication without additional protocol overhead?
Yes. The X9317UM8I-2.7 uses a minimal 3-wire up/down interface (CS, U/D, INC) with no clock or data lines required. Each negative edge on INC advances the wiper by one tap in the direction set by U/D, eliminating address decoding, command framing, or register mapping complexity found in I²C/SPI alternatives.
What is the maximum allowable voltage across RH and RL terminals of the X9317UM8I-2.7?
The absolute maximum voltage between RH and RL is limited to +6V per the datasheet's Absolute Maximum Ratings. However, for reliable operation within specifications, the applied voltage must remain within the VCC supply range (2.7V to 5.5V) and respect the 10 mW power rating - limiting RH–RL differential to ≤10V at 10kΩ (P = V²/R).
How does the X9317UM8I-2.7 handle rapid successive wiper movements?
The X9317UM8I-2.7 employs "make-before-break" switching during wiper transitions, temporarily connecting adjacent taps. While this prevents open-circuit glitches, moving multiple positions rapidly may reduce effective RTOTAL transiently. For stable analog paths, allow ≥5 µs settling (tPU) between commands or use single-step increments.
Is the X9317UM8I-2.7 RoHS-compliant and lead-free?
Yes. The X9317UM8I-2.7 is Pb-free and RoHS-compliant per EU Directive 2011/65/EU, using 100% matte tin plate termination finish (e3) compatible with both SnPb and Pb-free soldering processes, and rated MSL1 for moisture sensitivity.
X9317UM8I-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
X9317UM8I-2.7 FAQ
1.How can I place an order for X9317UM8I-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9317UM8I-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 X9317UM8I-2.7 reliable?
The price and inventory of X9317UM8I-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 X9317UM8I-2.7 is usually 5 days.
3.What payment methods are accepted for X9317UM8I-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9317UM8I-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9317UM8I-2.7?
X9317UM8I-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9317UM8I-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 X9317UM8I-2.7?
For technical support, including X9317UM8I-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9317UM8I-2.7 requirements.
6.How does Aetrix verify that X9317UM8I-2.7 is sourced from the original manufacturer or authorized distributors?
All X9317UM8I-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 X9317UM8I-2.7 meets industry standards.
7.What is the process for return or replacement of X9317UM8I-2.7?
All X9317UM8I-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with X9317UM8I-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 X9317UM8I-2.7 part is unused and in its original packaging.
Return procedure for X9317UM8I-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
X9317UM8I-2.7 Tags
-
MCP4018T-103E/LT
Microchip Technology
-
MCP4018T-503E/LT
Microchip Technology
-
MCP4011T-103E/SN
Microchip Technology
-
MCP4018T-104E/LT
Microchip Technology
-
MCP4017T-503E/LT
Microchip Technology
-
MCP4018T-502E/LT
Microchip Technology
-
MCP4017T-103E/LT
Microchip Technology
-
MCP4531T-103E/MF
Microchip Technology
-
MCP4021T-202E/SN
Microchip Technology
-
MCP4023T-103E/CH
Microchip Technology
-
MCP4022T-503E/CH
Microchip Technology
-
MCP4551T-502E/MS
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
