The AT25256C1-10CI-2.7 is a 256-Kbit serial EEPROM (Electrically Erasable Programmable Read-Only Memory) from Atmel, now Microchip Technology. This device utilizes a Serial Peripheral Interface (SPI) for communication, allowing easy integration with microcontrollers and other digital systems. The '2.7' in the part number indicates that it's designed for operation with a supply voltage around 2.7V, and '10' refers to the clock frequency in MHz. It's commonly used for storing configuration data, user preferences, or calibration settings.
Applications
- Storing configuration data for embedded systems
- Storing user preferences in consumer electronics
- Calibration data storage in sensors
- Serial number storage
- Security information storage
Features
- 256-Kbit (32K x 8) EEPROM
- SPI Serial Interface
- Low-Voltage Operation (2.7V)
- 10 MHz Clock Frequency
- Write Protect Feature
- Self-Timed Write Cycle
Benefits
- Non-volatile storage – retains data when power is off
- Simple SPI interface – easy to interface with microcontrollers
- Low-power operation – suitable for battery-powered applications
- Write protection – prevents accidental data corruption
- Fast write cycles – improves system performance
Additional Details
The AT25256C1-10CI-2.7 features a self-timed write cycle, which simplifies the write operation. The device also includes a hardware write protect feature to prevent accidental data corruption. It's available in various packages, including SOIC and TSSOP. This particular part is marked as End-Of-Life from Atmel.