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Renesas X9C103SIT2
- Part No.:
- X9C103SIT2
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
X9C103SIT2.pdf
- Description:
- IC DGTL POT 10KOHM 100TAP 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,703
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Product details
Overview
X9C103SIT2 from Renesas Electronics is a digitally controlled potentiometer (XDCP™) implementing a 99-element resistor array with 100 wiper tap points, ±20% end-to-end resistance tolerance, nonvolatile wiper position storage, and 5V CMOS operation. It functions as a solid-state three-terminal potentiometer or two-terminal variable resistor in analog signal conditioning circuits requiring stable, repeatable resistance adjustment.
For engineers reviewing the X9C103SIT2 datasheet, X9C103SIT2 pinout, X9C103SIT2 application, or X9C103SIT2 equivalent, key selection criteria include its 10 kΩ nominal resistance, 8-lead SOIC package, -40°C to +85°C industrial temperature range, 3 mA active current, and compatibility with standard 3-wire serial control (CS/U/D/INC).
Technical Context
The X9C103SIT2 integrates a 7-bit up/down counter, nonvolatile memory for wiper position retention, and a 99-resistor ladder with make-before-break wiper switching. Its internal charge pump enables ±5 V terminal voltage operation while powered from a single 5 V supply.
Wiper movement is edge-triggered via INC input under CS enable, with direction controlled by U/D logic level. Stored wiper positions are recalled automatically at power-up, ensuring deterministic startup behavior without host initialization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-End Resistance | 10 kΩ ±20% - defines full-scale resistance range for voltage divider or current-limiting use |
| Wiper Tap Points | 100 positions - provides 1% resolution per step across the resistance range |
| Supply Voltage | 5 V ±10% - single-rail operation compatible with standard digital logic supplies |
| Active Current | ≤3 mA - low power consumption during wiper adjustment sequences |
| Standby Current | ≤750 µA - minimal quiescent draw when deselected (CS high) |
| Terminal Voltage Range | ±5 V referenced to VSS - supports bipolar analog signal routing without dual supplies |
| Wiper Resistance | 40 Ω typical - adds predictable series impedance to wiper output path |
Pinout & Package
Package: 8-lead narrow-body SOIC (M8.15 footprint), RoHS-compliant, surface-mountable with 1.27 mm lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 INC | Increment clock input | Negative-edge-triggered control signal that advances or retracts wiper position per U/D state |
| 2 U/D | Direction control input | Logic level selects wiper movement direction (up/down) during each INC transition |
| 3 VH/RH | High-side fixed terminal | One end of resistor array; accepts -5 V to +5 V; polarity label denotes relative position, not voltage sign |
| 4 VSS | Ground reference | Primary circuit return node; all voltages referenced to this pin |
| 5 VW/RW | Wiper output terminal | Movable contact point; series resistance ~40 Ω; connects to one of 100 tap points |
| 6 VL/RL | Low-side fixed terminal | Opposite end of resistor array; accepts -5 V to +5 V; polarity label denotes relative position, not voltage sign |
| 7 CS | Chip select input | Active-low enable; wiper position stored to NV memory when CS rises while INC is high |
| 8 VCC | Positive supply | 5 V ±10% power rail; powers internal logic, counter, memory, and charge pump |
Key Features
| Feature | Design Value |
|---|---|
| Nonvolatile wiper storage | Retains last-set position for ≥100 years; eliminates need for external EEPROM or host recalibration at power-up |
| Temperature-compensated resistor array | ±300 ppm/°C RTOTAL drift (X9C103); ensures stable resistance ratio over industrial temperature range |
| Make-before-break wiper switching | Prevents open-circuit transients during position changes; avoids signal dropout in critical analog paths |
| Charge pump support | Enables ±5 V analog terminal swing from single 5 V supply; simplifies system power architecture |
| High endurance | Rated for 100,000 wiper position changes per bit; suitable for frequent calibration or user-adjustable systems |
Applications
| Voltage Reference Trimming | Audio Volume Control |
|---|---|
Use Scenario: Precision DAC output offset correction in sensor signal chains using op-amp feedback networks. IC Role / Device Role / Timing Role: Two-terminal variable resistor setting gain/offset in instrumentation amplifier configuration. Use Value: Eliminates manual potentiometer replacement; enables factory or field calibration via digital interface with persistent settings. |
Use Scenario: User-adjustable volume control in embedded audio playback devices with mute functionality. IC Role / Device Role / Timing Role: Three-terminal potentiometer acting as programmable voltage divider between audio source and amplifier input. Use Value: Provides noise-free, click-free attenuation with 100-step resolution and automatic recall of last volume setting after power cycle. |
| Power Supply Feedback Adjustment | Industrial Sensor Calibration |
Use Scenario: Fine-tuning output voltage of adjustable DC-DC converters in programmable power modules. IC Role / Device Role / Timing Role: Two-terminal variable resistor replacing mechanical trimmer in feedback divider network of voltage regulator IC. Use Value: Enables remote or automated calibration; maintains setpoint across thermal cycles and long-term drift due to nonvolatile storage. |
Use Scenario: Linearization and span/zero adjustment of analog outputs from pressure or temperature transducers. IC Role / Device Role / Timing Role: Three-terminal potentiometer used in ratiometric bridge completion or offset injection circuitry. Use Value: Supports multi-point calibration routines; stores individual sensor-specific coefficients without additional memory components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digitally controlled potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5243BRMZ10 | I²C interface; dual-channel; 10 kΩ; 256 taps; no nonvolatile storage | Requires continuous host communication to retain setting; unsuitable for unattended power-cycle recovery | Select if I²C bus integration and dual independent pots outweigh need for nonvolatile recall |
| MCP41010-I/P | SPI interface; 10 kΩ; 257 taps; volatile wiper register only | No built-in NV memory; requires external MCU to save/load position on power event | Choose when SPI is preferred and system already manages calibration persistence in firmware |
Compared with AD5243BRMZ10 and MCP41010-I/P, the X9C103SIT2 uniquely delivers autonomous power-up recall without host intervention or external memory, making it optimal for standalone analog trimming where reliability and zero-initialization overhead are critical.
Availability
X9C103SIT2 is available at Aetrix Electronics and suitable for voltage reference trimming, audio volume control, power supply feedback adjustment, and industrial sensor calibration requiring stable component supply and guaranteed long-term manufacturability.
Supply support for X9C103SIT2 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 industrial, automotive, and infrastructure markets.
The X9C103SIT2 belongs to Renesas' XDCP™ family of digitally controlled potentiometers, designed specifically for replacing mechanical trimmers in analog signal-path applications demanding repeatability, longevity, and nonvolatile setting retention.
FAQ
What is the nominal resistance value of the X9C103SIT2?
The X9C103SIT2 has a nominal end-to-end resistance of 10 kΩ with a tolerance of ±20%. This value is specified at room temperature and applies across the full operating temperature range of -40°C to +85°C. The actual measured resistance may vary within this band but remains stable over time due to the device's ±300 ppm/°C temperature coefficient.
Does the X9C103SIT2 retain its wiper position after power loss?
Yes, the X9C103SIT2 stores the wiper position in nonvolatile memory and automatically recalls it upon power-up. This occurs without any host controller action. The data retention period exceeds 100 years under normal operating conditions, ensuring consistent behavior across decades of deployment in unattended systems.
What interface protocol does the X9C103SIT2 use?
The X9C103SIT2 uses a simple 3-wire asynchronous serial interface consisting of CS (chip select), U/D (up/down direction), and INC (increment clock). It does not use I²C, SPI, or other standardized bus protocols. Communication is edge-triggered and requires no clock synchronization or address decoding, reducing MCU GPIO overhead.
Can the X9C103SIT2 operate with bipolar analog signals?
Yes, the X9C103SIT2 supports terminal voltages from -5 V to +5 V relative to VSS, enabling direct use with bipolar analog signals such as AC-coupled audio or differential sensor outputs. Its internal charge pump allows this extended range while maintaining compatibility with a single 5 V digital supply on VCC.
What is the wiper resistance of the X9C103SIT2 and how does it affect circuit performance?
The X9C103SIT2 has a typical wiper resistance of 40 Ω, with a maximum of 100 Ω. This series resistance appears in-line with the wiper output and must be accounted for in precision voltage divider or current-sensing applications. At 10 kΩ total resistance, it contributes ≤1% error in worst-case scenarios and remains stable across temperature and lifetime.
X9C103SIT2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Taper:
- Linear
- Configuration:
- Potentiometer
- Number of Circuits:
- 1
- Number of Taps:
- 100
- Resistance (Ohms):
- 10k
- 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-SOIC
- Operating Temperature:
- -40°C ~ 85°C
- Resistance - Wiper (Ohms) (Typ):
- 40
X9C103SIT2 FAQ
1.How can I place an order for X9C103SIT2 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9C103SIT2 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 X9C103SIT2 reliable?
The price and inventory of X9C103SIT2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9C103SIT2 is usually 5 days.
3.What payment methods are accepted for X9C103SIT2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9C103SIT2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9C103SIT2?
X9C103SIT2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9C103SIT2 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 X9C103SIT2?
For technical support, including X9C103SIT2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9C103SIT2 requirements.
6.How does Aetrix verify that X9C103SIT2 is sourced from the original manufacturer or authorized distributors?
All X9C103SIT2 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 X9C103SIT2 meets industry standards.
7.What is the process for return or replacement of X9C103SIT2?
All X9C103SIT2 units undergo pre-shipment inspection (PSI). If there is an issue with X9C103SIT2, 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 X9C103SIT2 part is unused and in its original packaging.
Return procedure for X9C103SIT2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
X9C103SIT2 Tags
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MCP4018T-103E/LT
Microchip Technology
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MCP4018T-503E/LT
Microchip Technology
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MCP4011T-103E/SN
Microchip Technology
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MCP4018T-104E/LT
Microchip Technology
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MCP4017T-503E/LT
Microchip Technology
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MCP4018T-502E/LT
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MCP4017T-103E/LT
Microchip Technology
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MCP4531T-103E/MF
Microchip Technology
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MCP4021T-202E/SN
Microchip Technology
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MCP4023T-103E/CH
Microchip Technology
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MCP4022T-503E/CH
Microchip Technology
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MCP4551T-502E/MS
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