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Renesas X9317ZM8I-2.7
- Part No.:
- X9317ZM8I-2.7
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
X9317ZM8I-2.7.pdf
- Description:
- IC DGTL POT 1KOHM 100TAP 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,364
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Product details
Overview
X9317ZM8I-2.7 from Renesas Electronics is a low-noise, low-power, 100-tap digitally controlled potentiometer (XDCP™) with nonvolatile wiper position storage, 10 kΩ end-to-end resistance, and 2.7 V to 5.5 V supply operation. It functions as a three-terminal voltage divider or two-terminal variable resistor for precision analog trimming in bias control and regulator feedback loops.
For engineers reviewing the X9317ZM8I-2.7 datasheet, X9317ZM8I-2.7 pinout, X9317ZM8I-2.7 application, or X9317ZM8I-2.7 equivalent, key selection criteria include its ±20% RTOTAL tolerance, 200 Ω typical wiper resistance at 5 V, -40°C to +85°C industrial temperature range, 3-wire up/down interface timing (tIW = 1–5 µs), and MSOP-8 package compatibility with space-constrained PCB layouts.
Technical Context
The X9317ZM8I-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 position stored in nonvolatile memory on CS↑/INC↑ edge.
Control logic operates via three dedicated digital inputs: CS (chip select), U/D (direction), and INC (negative-edge-triggered increment). The device supports both volatile adjustment and persistent recall at power-up, with standby current <5 µA and full functionality across 2.7 V to 5.5 V supply range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-end Resistance | 10 kΩ ±20% - defines maximum adjustable resistance range and sets gain/offset scaling resolution in voltage divider configurations. |
| Wiper Resistance | 200 Ω (typ) at 5 V; 400 Ω (typ) at 2.7 V - directly impacts signal path insertion loss and loading error in high-impedance circuits. |
| Supply Voltage Range | 2.7 V to 5.5 V - enables direct integration into 3.3 V and 5 V systems without level-shifting or LDO overhead. |
| Standby Current | <5 µA - allows battery-powered or always-on systems to maintain trim settings with negligible quiescent drain. |
| Resolution | 1% (100 taps) - provides 10 mV step resolution over 1 V span, sufficient for fine DC bias and offset calibration. |
| Temperature Coefficient | ±300 ppm/°C (RTOTAL); ±20 ppm/°C (ratiometric) - ensures stable ratio tracking between RH, RW, RL under thermal drift, critical for precision references. |
| Nonvolatile Endurance | 100,000 data changes per bit - supports field recalibration cycles over product lifetime without memory wear-out failure. |
Pinout & Package
Package: 8-lead MSOP (M8.118), RoHS-compliant, -40°C to +85°C operating range, 3.0 mm × 3.0 mm footprint, 0.65 mm lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (INC) | Increment clock input | Negative-edge-triggered control line; toggling moves wiper up/down based on U/D state; determines timing-critical tIW (1–5 µs wiper settle). |
| 2 (U/D) | Direction control input | Static logic level defining wiper movement direction during INC transitions; must be stable before each INC edge. |
| 3 (RH) | High terminal | Fixed end of resistor array; connected to highest potential node in voltage divider; not necessarily at VCC potential. |
| 4 (VSS) | Ground reference | Primary return path for all internal logic and analog circuitry; requires low-impedance connection to system ground plane. |
| 5 (RW) | Wiper output | Movable terminal delivering intermediate voltage/current; series resistance (200–1000 Ω) affects loading and noise coupling in sensitive nodes. |
| 6 (RL) | Low terminal | Fixed end of resistor array; connected to lowest potential node (e.g., ground or negative rail); defines bottom reference for division ratio. |
| 7 (CS) | Chip select | Active-low enable; initiates communication when low; rising edge with INC high triggers nonvolatile store operation. |
| 8 (VCC) | Power supply | 2.7–5.5 V analog/digital supply; decoupling capacitor (0.1 µF) required within 5 mm for stable wiper positioning and noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Nonvolatile wiper storage | Retains last-set position across power cycles; eliminates need for host MCU initialization or external EEPROM for startup defaults. |
| 3-wire serial interface | Requires only CS, U/D, and INC signals-no clock or data lines-reducing GPIO count and simplifying firmware control logic. |
| Temperature-compensated array | ±20 ppm/°C ratiometric TC ensures stable voltage division ratio across -40°C to +85°C, critical for sensor bias and reference trimming. |
| Make-before-break switching | Prevents open-circuit transients during wiper movement; avoids signal glitches in active feedback paths like voltage regulator loops. |
| Low 100-year data retention | Guarantees trim settings remain valid over full product lifecycle without periodic refresh, supporting long-deployment industrial equipment. |
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 setting precise DC bias level between VDD and ground, with wiper connected to VCOM driver amplifier input. Use Value: Enables factory calibration and dynamic gamma correction via MCU control, leveraging nonvolatile storage to retain panel-specific offsets across power cycles. | Use Scenario: Setting precise bias current for laser diode anode in optical transceivers to maintain constant optical output power (COP). IC Role / Device Role / Timing Role: Two-terminal variable resistor in series with laser diode cathode, adjusting current magnitude while maintaining thermal stability. Use Value: Compensates for laser aging and temperature drift using ratiometric TC (±20 ppm/°C), ensuring COP stability without closed-loop sensing hardware. |
| Voltage Regulator Output Control | DC Bias Adjustment |
Use Scenario: Trimming feedback divider ratio in adjustable LDOs or DC-DC converters to achieve exact output voltage (e.g., 1.8 V ±10 mV). IC Role / Device Role / Timing Role: Replacing fixed resistors R1/R2 in standard feedback network; RH and RL connect to VOUT and GND, RW feeds error amplifier input. Use Value: Allows post-manufacturing calibration and field updates without soldering; 1% resolution supports tight regulation specs in telecom and server power supplies. | Use Scenario: Calibrating input offset voltage in instrumentation amplifiers or op-amp-based sensor signal chains. IC Role / Device Role / Timing Role: Two-terminal variable resistor in op-amp offset null circuit (e.g., LM358 pin 1–5), adjusting differential input imbalance. Use Value: Achieves sub-mV offset correction with 100-tap granularity; low 120 dBV noise prevents injection of analog interference into µV-level sensor signals. |
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 taps, 10 kΩ, 2.7–5.5 V, but no nonvolatile store on power-up; requires external EEPROM or host-initiated restore. | Suitable for systems with I²C bus availability and host-controlled calibration; lacks autonomous power-up recall. | Select when I²C infrastructure exists and wiper position management is centralized in firmware rather than autonomous. |
| MCP41HV51-103 | 100 kΩ end-to-end resistance, SPI interface, 2.7–5.5 V, nonvolatile store, but higher 450 Ω wiper resistance and ±30% RTOTAL tolerance. | Better suited for high-voltage (up to 36 V) bias networks where 100 kΩ loading is acceptable; less precise for low-impedance feedback paths. | Choose for HV bias applications requiring >10 V compliance; avoid where 10 kΩ matching or low wiper R is mandatory. |
Compared with AD5170BRMZ-10 and MCP41HV51-103, the X9317ZM8I-2.7 uniquely combines 10 kΩ precision, 3-wire simplicity, guaranteed power-up recall, and ±20 ppm/°C ratiometric stability-making it optimal for space-constrained, self-calibrating analog subsystems in industrial and telecom equipment.
Availability
X9317ZM8I-2.7 is available at Aetrix Electronics and suitable for LCD bias control, laser diode bias control, and voltage regulator output control requiring stable component supply, long-term calibration retention, and industrial-temperature reliability.
Supply support for X9317ZM8I-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 enterprise applications.
The X9317 family was designed specifically for precision analog trimming in resource-constrained systems-emphasizing low power, nonvolatile retention, and robust 3-wire control to replace mechanical potentiometers in automated calibration workflows.
FAQ
What is the guaranteed power-up behavior of the X9317ZM8I-2.7?
Upon power-up, the X9317ZM8I-2.7 automatically recalls the last wiper position stored in nonvolatile memory and applies it to the resistor array within 5 µs. This behavior is guaranteed across the full -40°C to +85°C temperature range and requires no host intervention, making X9317ZM8I-2.7 ideal for systems needing deterministic startup conditions without MCU boot-time calibration.
Does the X9317ZM8I-2.7 support true 3-wire interface operation without additional components?
Yes, the X9317ZM8I-2.7 operates with only three digital control lines-CS, U/D, and INC-with no clock, data, or bidirectional bus requirements. All timing parameters (e.g., tIW = 1–5 µs, tCYC = 2 µs) are internally managed, and the device draws <5 µA in standby. No pull-ups, level shifters, or external logic are needed for basic wiper control or nonvolatile store, simplifying PCB layout and firmware design for X9317ZM8I-2.7 integration.
How does the ratiometric temperature coefficient benefit X9317ZM8I-2.7 in voltage reference applications?
The X9317ZM8I-2.7's ±20 ppm/°C ratiometric temperature coefficient ensures the voltage division ratio (VW/VH or VW/VL) remains stable across temperature, even as absolute RH, RW, and RL resistances drift. In voltage reference or sensor bias circuits, this preserves gain accuracy without requiring external compensation-directly improving long-term stability of X9317ZM8I-2.7-based trim networks in industrial environments.
Can the X9317ZM8I-2.7 be used in high-impedance sensor interfaces without degrading signal integrity?
Yes, the X9317ZM8I-2.7 exhibits -120 dBV noise (referenced to 1 kHz) and 10 pF terminal capacitance (CH/CL), minimizing injection of analog noise and capacitive loading into high-Z nodes. Its 200 Ω typical wiper resistance at 5 V introduces negligible error in µA-range bias currents, and the make-before-break switching prevents transient discontinuities-making X9317ZM8I-2.7 suitable for precision sensor front-ends and medical-grade signal conditioning.
What is the maximum allowable voltage across RH and RL terminals of the X9317ZM8I-2.7?
The absolute maximum voltage across RH and RL terminals of the X9317ZM8I-2.7 is +6 V, as specified in the Absolute Maximum Ratings table. However, for reliable operation within datasheet limits, the voltage difference must remain within the supply rails (VSS ≤ VRH, VRL ≤ VCC), and power dissipation must stay below 10 mW for 10 kΩ devices. Exceeding these conditions risks irreversible damage to the resistor array or wiper switches in X9317ZM8I-2.7.
X9317ZM8I-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):
- 1k
- 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
X9317ZM8I-2.7 FAQ
1.How can I place an order for X9317ZM8I-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9317ZM8I-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 X9317ZM8I-2.7 reliable?
The price and inventory of X9317ZM8I-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 X9317ZM8I-2.7 is usually 5 days.
3.What payment methods are accepted for X9317ZM8I-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9317ZM8I-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9317ZM8I-2.7?
X9317ZM8I-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9317ZM8I-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 X9317ZM8I-2.7?
For technical support, including X9317ZM8I-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9317ZM8I-2.7 requirements.
6.How does Aetrix verify that X9317ZM8I-2.7 is sourced from the original manufacturer or authorized distributors?
All X9317ZM8I-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 X9317ZM8I-2.7 meets industry standards.
7.What is the process for return or replacement of X9317ZM8I-2.7?
All X9317ZM8I-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with X9317ZM8I-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 X9317ZM8I-2.7 part is unused and in its original packaging.
Return procedure for X9317ZM8I-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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