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X25045SI from XICOR

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X25045SI

Manufacturer: XICOR

Programmable Watchdog Supervisory E2PROM

Partnumber Manufacturer Quantity Availability
X25045SI XICOR 700 In Stock

Description and Introduction

Programmable Watchdog Supervisory E2PROM **Part X25045SI Manufacturer: XICOR**  

### **Specifications:**  
- **Type:** Serial EEPROM with Watchdog Timer and Voltage Monitor  
- **Memory Size:** 512 x 8 (4K bits)  
- **Interface:** SPI (Serial Peripheral Interface)  
- **Voltage Range:** 2.7V to 5.5V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Write Cycle Endurance:** 1,000,000 cycles  
- **Data Retention:** 100 years  
- **Watchdog Timer:** Programmable timeout (200ms, 600ms, or 1.4s)  
- **Voltage Monitor:** Resets system when VCC falls below threshold  

### **Descriptions:**  
The **X25045SI** is a **4K-bit Serial EEPROM** integrated with a **Watchdog Timer**, **Voltage Monitor**, and **Reset** functionality. It is designed for critical applications requiring data storage and system reliability.  

### **Features:**  
- **SPI-compatible serial interface**  
- **Low-power CMOS technology**  
- **Software and hardware write protection**  
- **Programmable watchdog timer**  
- **Power-on reset and voltage monitoring**  
- **High reliability with built-in error protection**  
- **Compact 8-lead SOIC package**  

This part is commonly used in **industrial, automotive, and embedded systems** where data integrity and system monitoring are essential.

Application Scenarios & Design Considerations

Programmable Watchdog Supervisory E2PROM

Alternative Part Number

  • CAT25040SI --: Pin-compatible EEPROM with SPI interface and similar 4Kbit density, widely available and functionally equivalent for most X25045 applications.
  • M95040-WMN6TP --: SPI EEPROM in the same 4Kbit class with comparable voltage range and SOIC package, suitable drop-in replacement with minor timing differences.
  • 25LC040A-I/SN --: Industry-standard 4Kbit SPI EEPROM in SOIC-8, well documented and pin-compatible, offering a reliable second source for the X25045SI.

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