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M24C64W from ST,ST Microelectronics

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M24C64W

Manufacturer: ST

64KBIT AND 32KBIT SERIAL I²C BUS EEPROM

Partnumber Manufacturer Quantity Availability
M24C64W ST 97 In Stock

Description and Introduction

64KBIT AND 32KBIT SERIAL I²C BUS EEPROM The M24C64W is a 64-Kbit serial I2C bus EEPROM manufactured by STMicroelectronics. Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Memory Size:** 64 Kbit (8 K × 8 bits)  
- **Interface:** I2C-compatible (supports 400 kHz)  
- **Supply Voltage:** 1.7V to 5.5V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Write Cycle Time:** 5 ms (max)  
- **Endurance:** 4 million write cycles  
- **Data Retention:** 40 years  
- **Package Options:** SO8, TSSOP8, UFDFPN8, WLCSP  

### **Descriptions:**  
- The M24C64W is a non-volatile EEPROM designed for low-power applications.  
- It supports byte and page write operations (up to 32 bytes per page).  
- Features a built-in write protection mechanism (software and hardware).  
- Compatible with I2C protocols and supports random and sequential read modes.  

### **Features:**  
- **Low Power Consumption:**  
  - Standby current: 5 µA (max)  
  - Read current: 1 mA (max)  
- **Extended Voltage Range:** Operates from 1.7V to 5.5V.  
- **Page Write Buffer:** Allows faster programming with 32-byte page writes.  
- **Write Protection:** Hardware (WP pin) and software-protected memory blocks.  
- **AEC-Q100 Qualified:** Suitable for automotive applications.  

This device is commonly used in industrial, consumer, and automotive electronics for data storage applications.

Application Scenarios & Design Considerations

64KBIT AND 32KBIT SERIAL I²C BUS EEPROM

Alternative Part Number

  • AT24C64D --: Pin-compatible 64Kbit I2C serial EEPROM with the same 8-pin footprint and I2C protocol; widely available and a direct functional replacement for the M24C64W.
  • CAT24C64 --: 64Kbit I2C EEPROM in the same SOIC/TSSOP packages with compatible voltage range and pinout, offering a drop-in alternative from a different vendor.
  • 24LC64 --: Industry-standard 64Kbit I2C serial EEPROM with matching pinout and I2C interface; a well-established, low-cost substitute for the M24C64W.

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