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Renesas X9317ZM8I
- Part No.:
- X9317ZM8I
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
X9317ZM8I.pdf
- Description:
- IC DGTL POT 1KOHM 100TAP 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,478
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Product details
Overview
X9317ZM8I from Renesas Electronics is a digitally controlled potentiometer (XDCP™) implementing a 99-element resistor array with 100 wiper tap positions, nonvolatile wiper position storage, and 3-wire up/down serial interface. It operates from 2.7V to 5.5V, delivers ±20% end-to-end resistance tolerance, and supports voltage divider or two-terminal variable resistor configurations in precision analog trimming applications.
For engineers reviewing the X9317ZM8I datasheet, X9317ZM8I pinout, X9317ZM8I application, or X9317ZM8I equivalent, this device serves as a solid-state replacement for mechanical potentiometers where power-up repeatability, low noise (–120 dBV), and 100k-cycle endurance are required in LCD bias, laser diode control, and DC offset adjustment circuits.
Technical Context
The X9317ZM8I 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 temperature-compensated resistor elements maintain ratiometric stability (±20 ppm/°C).
Control is executed via three dedicated digital inputs: CS (chip select), U/D (direction), and INC (edge-triggered increment). A store operation occurs on CS rising edge with INC high, writing the current wiper value to EEPROM for retention over 100 years and automatic recall at power-up.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-end Resistance | 10 kΩ ±20% - defines full-scale analog range and sets maximum power dissipation (10 mW) |
| Wiper Tap Count | 100 positions - enables 1% resolution per step for precise gain/offset calibration |
| Supply Voltage Range | 2.7 V to 5.5 V - supports single-supply operation across industrial and commercial rails |
| Standby Current | <5 µA - minimizes quiescent power in battery-backed or energy-sensitive systems |
| Wiper Resistance | 200 Ω typical (at 5 V) - contributes predictable series impedance in feedback paths |
| Nonvolatile Endurance | 100,000 write cycles - ensures long-term field reliability for recalibration routines |
| Temperature Coefficient | ±300 ppm/°C (absolute), ±20 ppm/°C (ratiometric) - maintains linearity across –40°C to +85°C |
| Low-Noise Performance | –120 dBV (ref. 1 kHz) - critical for audio, sensor signal conditioning, and precision reference circuits |
Pinout & Package
Package: 8-lead MSOP (RoHS-compliant, M8.118 drawing, –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 = RH side, down = RL side) |
| 3 (RH) | High terminal | Fixed end of resistor array; connects to higher potential in voltage divider configuration |
| 4 (VSS) | Ground reference | System ground return for internal logic and resistor array; must be low-impedance |
| 5 (RW) | Wiper output | Movable terminal; provides analog output proportional to tap position; 200 Ω series resistance |
| 6 (RL) | Low terminal | Fixed end of resistor array; connects to lower potential or ground in voltage divider use |
| 7 (CS) | Chip select | Active-low enable; initiates wiper movement when low; triggers nonvolatile store on rising edge with INC high |
| 8 (VCC) | Power supply | 2.7–5.5 V CMOS supply; powers logic and array; requires local 0.1 µF bypass capacitor |
Key Features
| Feature | Design Value |
|---|---|
| Nonvolatile wiper storage | Retains last-set position across power cycles for deterministic startup behavior without host reinitialization |
| 3-wire serial interface | Eliminates need for I²C/SPI peripherals; compatible with GPIO-only microcontrollers and FPGA control logic |
| Temperature-compensated array | Ensures stable resistance ratio between RH–RW and RW–RL over full industrial temperature range |
| Make-before-break switching | Prevents open-circuit transients during wiper movement-critical in closed-loop amplifier feedback networks |
| Low-power CMOS design | Enables integration into always-on subsystems with <5 µA standby draw and no external biasing components |
| Pb-free RoHS compliance | Meets IPC/JEDEC J-STD-020 reflow standards for lead-free assembly in high-reliability manufacturing |
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 voltage divider setting reference voltage for display driver ICs. Use Value: Nonvolatile recall ensures consistent display settings after ignition cycle; ±20 ppm/°C ratiometric TC prevents thermal drift-induced contrast shift. |
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 constant-current source feedback loop. Use Value: 100-tap resolution enables fine current tuning (e.g., 0.1 mA steps); low noise avoids modulation artifacts in optical output. |
| Voltage Regulator Output Trim | DC Offset Adjustment in Instrumentation Amplifiers |
Use Scenario: Factory-trimming output voltage of adjustable LDOs or switching regulators to meet tight tolerance specs. IC Role / Device Role / Timing Role: Resistor in feedback divider network (e.g., replacing R2 in standard VOUT = VREF(1+R2/R1) equation). Use Value: 10 kΩ RTOTAL matches common regulator feedback impedance targets; ±20% tolerance accommodates process variation without binning. |
Use Scenario: Nulling input offset voltage in precision op-amp circuits used for strain gauge or thermocouple signal conditioning. IC Role / Device Role / Timing Role: Two-terminal variable resistor in offset null port (e.g., LM358, AD8421) or as part of a servo loop. Use Value: Low 200 Ω wiper resistance minimizes injection error; –120 dBV noise floor preserves nanovolt-level signal integrity. |
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, 10 kΩ nominal, 2.7–5.5 V supply, 500 ppm/°C TC | Requires I²C master; lower resolution reduces trim granularity; higher TC increases thermal drift sensitivity | Choose when system already uses I²C infrastructure and 64-step resolution suffices for target accuracy |
| MCP41HV51-103 | SPI interface, 257-tap resolution, 10 kΩ nominal, 2.7–5.5 V supply, 150 ppm/°C TC, 100 V tolerant | Higher resolution and better TC, but SPI protocol adds complexity; HV rating unnecessary for 5 V systems | Choose for ultra-precise trimming where SPI overhead is acceptable and enhanced TC performance justifies cost premium |
Compared with AD5171BRMZ-10 and MCP41HV51-103, the X9317ZM8I offers superior noise performance (–120 dBV vs. –95 dBV typical), simpler GPIO-based control, and guaranteed power-up repeatability without host intervention-making it optimal for cost-sensitive, low-noise analog trimming in automotive and industrial equipment.
Availability
X9317ZM8I is available at Aetrix Electronics and suitable for LCD bias control, laser diode biasing, and voltage regulator output trimming requiring stable component supply, long-term parametric consistency, and guaranteed RoHS-compliant sourcing.
Supply support for X9317ZM8I 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 datacenter markets.
The X9317ZM8I belongs to Renesas' XDCP™ family of digitally controlled potentiometers, engineered specifically for high-reliability analog trimming where mechanical potentiometer wear, environmental instability, and manual calibration are unacceptable.
FAQ
What is the operating temperature range for the X9317ZM8I?
The X9317ZM8I is rated for –40°C to +85°C operation, matching industrial-grade requirements. This range is confirmed in the Ordering Information table (page 2) for all "I" suffix variants like X9317ZM8I, and supported by absolute maximum ratings and parameter characterization across that span. The device maintains specified linearity, resistance tolerance, and nonvolatile retention within this full range.
Does the X9317ZM8I require an external clock or microcontroller to function?
No, the X9317ZM8I operates autonomously using only three GPIO lines: CS, U/D, and INC. It contains an integrated 7-bit up/down counter and decoder-no external clock or firmware is needed. Toggling INC while CS is low moves the wiper; direction is set by U/D. The X9317ZM8I stores and recalls its position without host involvement.
How does the nonvolatile memory in the X9317ZM8I retain wiper position after power loss?
The X9317ZM8I uses EEPROM-based nonvolatile memory to store the current wiper position. A store operation is triggered by raising CS to high while INC is held high. Once stored, the value persists for 100 years and is automatically loaded to the wiper register on next power-up, ensuring repeatable startup behavior without host reprogramming.
Can the X9317ZM8I be used in a two-terminal variable resistor configuration?
Yes, the X9317ZM8I supports both three-terminal potentiometer (RH–RW–RL) and two-terminal variable resistor (e.g., RW–RL or RH–RW) modes. In two-terminal use, one fixed terminal is left unconnected or tied to RW, enabling current-setting applications such as laser diode bias or LED current control-as validated in Figure 4 and Applications section (page 1).
What is the maximum wiper current rating for the X9317ZM8I at 2.7 V supply?
At VCC = 2.7 V, the X9317ZM8I specifies a maximum wiper current (IW) of ±4.4 mA (page 4, Absolute Maximum Ratings). This limit applies regardless of wiper position and ensures safe operation of the internal switches and resistor elements. Exceeding this may cause irreversible damage or accelerated wear.
X9317ZM8I 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:
- 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):
- 200
X9317ZM8I FAQ
1.How can I place an order for X9317ZM8I through Aetrix?
Please submit a Request for Quotation (RFQ) for X9317ZM8I 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 reliable?
The price and inventory of X9317ZM8I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9317ZM8I is usually 5 days.
3.What payment methods are accepted for X9317ZM8I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9317ZM8I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9317ZM8I?
X9317ZM8I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9317ZM8I 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?
For technical support, including X9317ZM8I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9317ZM8I requirements.
6.How does Aetrix verify that X9317ZM8I is sourced from the original manufacturer or authorized distributors?
All X9317ZM8I 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 meets industry standards.
7.What is the process for return or replacement of X9317ZM8I?
All X9317ZM8I units undergo pre-shipment inspection (PSI). If there is an issue with X9317ZM8I, 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 part is unused and in its original packaging.
Return procedure for X9317ZM8I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
X9317ZM8I Tags
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MCP4018T-103E/LT
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MCP4018T-503E/LT
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MCP4011T-103E/SN
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MCP4017T-503E/LT
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MCP4018T-502E/LT
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MCP4017T-103E/LT
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MCP4531T-103E/MF
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MCP4021T-202E/SN
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MCP4023T-103E/CH
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MCP4551T-502E/MS
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