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X9C503SI from XICRO

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X9C503SI

Manufacturer: XICRO, XICOR, INTERSIL

Wiper Position Stored in Non-volatile Memory and Recalled on Power-up

Partnumber Manufacturer Quantity Availability
X9C503SI XICRO, XICOR, INTERSIL 18675 In Stock

Description and Introduction

Wiper Position Stored in Non-volatile Memory and Recalled on Power-up The X9C503SI is a digitally controlled potentiometer (XDCP) manufactured by XICOR.  

### **Specifications:**  
- **Type:** Non-volatile, 100-tap, digitally controlled potentiometer  
- **Resistance Value:** 50 kΩ  
- **Interface:** 3-wire (Up/Down, Increment, and Chip Select)  
- **Supply Voltage:** 4.5V to 5.5V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Endurance:** 100,000 data changes per bit  
- **Data Retention:** 100 years  
- **Package:** 8-pin SOIC  

### **Descriptions and Features:**  
- **Non-Volatile Memory:** Retains wiper position when power is off  
- **100 Tap Points:** Provides precise digital adjustment  
- **Low Power Consumption:** Ideal for battery-operated devices  
- **Increment/Decrement Control:** Simple serial interface for adjustment  
- **Wiper Resistance:** Typically 40Ω  
- **End-to-End Resistance Tolerance:** ±20%  
- **Applications:** Used in calibration, volume control, LCD contrast adjustment, and programmable filters  

This device is designed for applications requiring non-volatile memory storage of potentiometer settings.

Application Scenarios & Design Considerations

Wiper Position Stored in Non-volatile Memory and Recalled on Power-up

Alternative Part Number

  • DS1803Z-050+ --: Dual 50k digital potentiometer with I2C-compatible interface, functionally similar to the X9C503 and widely available; verify pinout and package before substitution.
  • MCP4251-503E/P --: Dual 50k SPI digital potentiometer offering comparable wiper resolution and a common alternative for X9C-series designs; check interface and package compatibility.
  • AD5241BRZ50 --: 50k I2C digital potentiometer from a reputable vendor, suitable as a functional replacement when the X9C503SI is unavailable; confirm supply voltage and pin configuration.
  • DS1803Z-050 --: Dual 50k digital potentiometer with I2C interface, functionally similar to the X9C503 and widely available.
  • MCP4231-503E/SL --: Dual 50k SPI digital potentiometer offering comparable resolution and a modern, well-supported alternative.
  • MCP4551-503E/MS --: 50k single digital potentiometer with SPI/I2C options, low cost and easy to source as an alternative to the X9C503.

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