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M24256-AW from ST,ST Microelectronics

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M24256-AW

Manufacturer: ST

256 KBIT SERIAL I²C BUS EEPROM WITH TWO CHIP ENABLE LINES

Partnumber Manufacturer Quantity Availability
M24256-AW,M24256AW ST 5477 In Stock

Description and Introduction

256 KBIT SERIAL I²C BUS EEPROM WITH TWO CHIP ENABLE LINES The M24256-AW is a 256-Kbit serial I2C bus EEPROM manufactured by STMicroelectronics.  

### **Key Specifications:**  
- **Memory Size:** 256 Kbit (32 Kbyte)  
- **Interface:** I2C-compatible (supports 400 kHz)  
- **Operating Voltage:** 1.7V to 5.5V  
- **Write Cycle Time:** 5 ms (typical)  
- **Endurance:** 4 million write cycles  
- **Data Retention:** 200 years  
- **Package:** SO8, TSSOP8, UFDFPN8  

### **Features:**  
- **Low Power Consumption:**  
  - Standby current: 2 µA (typical)  
  - Read current: 400 µA (typical)  
- **Page Write Buffer:** 64 bytes  
- **Hardware Write Protection:** WP pin for partial/full memory protection  
- **Extended Temperature Range:** -40°C to +85°C  
- **AEC-Q100 Qualified:** Available for automotive applications  

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

Application Scenarios & Design Considerations

256 KBIT SERIAL I²C BUS EEPROM WITH TWO CHIP ENABLE LINES

Alternative Part Number

  • AT24C256C-SSHL-T --: 256 Kbit I2C serial EEPROM with the same 32K x 8 organization and 2-wire interface, widely available and a common drop-in replacement for M24256 devices.
  • 24LC256-I/SN --: 256 Kbit I2C EEPROM in SOIC-8 with compatible pinout and voltage range, a long-established industry-standard alternative to the M24256 series.
  • CAT24C256WI-GT3 --: 256 Kbit I2C CMOS EEPROM with matching address and interface, offering similar performance and a different series naming for easy distinction.

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