Microchip Technology's 25LC256T-E/ST Serial EEPROM

The 25LC256T-E/ST is a high-capacity 256 Kb Serial Electrically Erasable Programmable Read-Only Memory (EEPROM) device from Microchip Technology, designed to provide a robust storage solution for advanced microcontroller-based systems. This EEPROM offers a versatile interface that ensures easy integration with a wide range of microcontrollers and digital systems.

Constructed with a focus on reliability and endurance, the 25LC256T-E/ST boasts a significant data retention period and supports over 1 million erase/write cycles, ensuring data integrity and stability over the product's lifespan. Its serial interface is SPI-compatible, operating at clock frequencies up to 10 MHz, which enables quick data access and rapid programming capabilities, crucial for performance-critical applications.

The device comes in a TSSOP package, referenced by the 'T' in its part number, and features an industrial temperature range denoted by the 'E'. The 'ST' suffix indicates the package's RoHS compliance and lead-free status, making it suitable for environmentally sensitive projects and applications that demand adherence to strict regulatory standards.

Key Features of the 25LC256T-E/ST:

• Memory Size: 256 Kb (32,768 x 8-bit organization), providing ample space for configuration parameters, non-volatile data storage, and application code.
• Interface: SPI serial interface for simple communication with host controllers, supporting a data transfer rate that suits high-speed requirements.
• Speed: Fast read and write operations with a 10 MHz max clock frequency, facilitating efficient system performance.
• Temperature Range: Industrial temperature range from -40°C to +85°C, ensuring operation under extreme conditions.
• Endurance: High reliability with over 1 million erase/write cycles and a data retention period of over 100 years.
• Package: Supplied in a 8-lead TSSOP package that is compact and suitable for space-constrained applications.
• Supply Voltage: Operates from a single 2.5V to 5.5V power supply, accommodating a variety of system power requirements.

Whether it's for data logging, device configuration, or firmware updates, the 25LC256T-E/ST from Microchip Technology provides a dependable and flexible non-volatile memory solution. Its robust design and comprehensive feature set make it an ideal choice for applications in automotive, industrial, medical, and consumer electronics where long-term data storage is critical.