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X24C45P from XICOR

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X24C45P

Manufacturer: XICOR

Serial AUTOSTORE? NOVRAM

Partnumber Manufacturer Quantity Availability
X24C45P XICOR 4165 In Stock

Description and Introduction

Serial AUTOSTORE? NOVRAM The part **X24C45P** is a **Serial EEPROM (Electrically Erasable Programmable Read-Only Memory)** manufactured by **Xicor** (later acquired by Intersil, now part of Renesas Electronics).  

### **Specifications:**  
- **Memory Size:** 512 bits (64 x 8)  
- **Interface:** I²C (2-wire serial interface)  
- **Supply Voltage:** 2.7V to 5.5V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Write Cycle Time:** 5 ms (typical)  
- **Endurance:** 100,000 write cycles per byte  
- **Data Retention:** 100 years  
- **Package:** 8-pin DIP (Dual In-line Package)  

### **Descriptions:**  
- The **X24C45P** is a low-power, byte-addressable EEPROM designed for non-volatile data storage.  
- It supports **sequential read operations** for faster data access.  
- Features **software write protection** to prevent accidental data corruption.  

### **Features:**  
- **I²C-Compatible Interface** (supports 400 kHz operation)  
- **Low Power Consumption** (active & standby modes)  
- **Built-in Error Detection** (acknowledge polling)  
- **Self-Timed Write Cycle** (no external timing required)  
- **Hardware & Software Write Protection**  

This EEPROM was commonly used in industrial, automotive, and consumer electronics for configuration storage and parameter retention.  

*(Note: Xicor is no longer an independent company, and the part may be obsolete or available through secondary markets.)*

Application Scenarios & Design Considerations

Serial AUTOSTORE? NOVRAM

Alternative Part Number

  • AT24C45 --: Same 4K-bit serial EEPROM function with I2C-compatible interface, widely available and pin-compatible in most designs.
  • 24LC45 --: Direct functional equivalent 4K serial EEPROM from a major supplier, commonly used as a drop-in replacement for X24C45.
  • CAT24C45 --: 4K-bit I2C serial EEPROM with comparable specifications and pinout, suitable as an alternative source.
  • 24C45 --: Same 4K-bit serial EEPROM function with I2C-compatible interface, widely available and pin-compatible in DIP-8.
  • AT24C04 --: 4K-bit I2C EEPROM from a different series, functionally equivalent for most X24C45P applications.
  • CAT24C04 --: 4K-bit I2C serial EEPROM alternative with similar pinout and voltage range, suitable as a drop-in replacement.

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