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X25045 from XICRO

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X25045

Manufacturer: XICRO, XICOR

Programmable Watchdog Supervisory E2PROM

Partnumber Manufacturer Quantity Availability
X25045 XICRO, XICOR 1580 In Stock

Description and Introduction

Programmable Watchdog Supervisory E2PROM Part X25045 is manufactured by XICOR (now part of Intersil). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:  

### **Specifications:**  
- **Type:** Serial EEPROM with a built-in watchdog timer and voltage supervisor  
- **Memory Capacity:** 512 x 8 bits (4 Kbit)  
- **Interface:** SPI (Serial Peripheral Interface)  
- **Supply Voltage:** 2.7V to 5.5V  
- **Operating Temperature Range:** -40°C to +85°C (Industrial)  
- **Write Cycle Endurance:** 1,000,000 cycles per byte  
- **Data Retention:** 100 years  
- **Watchdog Timer:** Programmable timeout periods (200ms, 600ms, 1.4s, or disable)  
- **Reset Threshold Voltage:** Adjustable (for voltage monitoring)  

### **Descriptions:**  
The X25045 is a CMOS EEPROM with an integrated watchdog timer and voltage supervisor. It is designed for applications requiring non-volatile memory storage with system monitoring capabilities. The SPI interface allows for easy communication with microcontrollers.  

### **Features:**  
- **Integrated Functions:** Combines EEPROM, watchdog timer, and voltage supervisor in a single chip.  
- **SPI Interface:** Supports SPI modes 0 and 3.  
- **Block Lock Protection:** Protects 1/4, 1/2, or all of the memory array from writes.  
- **Low Power Consumption:** Active current of 3mA (max) and standby current of 20μA (max).  
- **Write Protection:** Hardware and software write protection.  
- **Small Package:** Available in 8-lead PDIP, SOIC, and TSSOP packages.  

These details are based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

Programmable Watchdog Supervisory E2PROM

Alternative Part Number

  • CAT25045 --: Pin-compatible EEPROM supervisor with the same 25045 function set, widely available and a direct functional drop-in.
  • M95040 --: SPI EEPROM with comparable memory density and supervisory features, usable as a functional substitute with minor design review.
  • AT25040 --: SPI serial EEPROM from a different series offering similar storage and interface, suitable as an alternative with pinout verification.

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