The 25LC640AT-I/SN is an IC (Integrated Circuit) component manufactured by Microchip Technology. It belongs to the 25LC series of Serial EEPROM (Electrically Erasable Programmable Read-Only Memory) devices. Here's an overview of its key features:
1. Memory Capacity: The 25LC640AT-I/SN has a memory capacity of 64 Kbits or 8 kilobytes (KB). This memory is organized as 8,192 bytes, each with its own unique address.
2. Serial Interface: It features a Serial Peripheral Interface (SPI), which allows for fast transfer of data between the IC and the microcontroller or host device. The SPI bus consists of four signals: Serial Data Input (SDI), Serial Data Output (SDO), Serial Clock (SCK), and Chip Select (CS).
3. Low Power Consumption: This IC component has low power consumption, making it suitable for battery-powered applications or devices that need to conserve energy.
4. Write Protection: The 25LC640AT-I/SN provides built-in hardware and software write protection mechanisms. The WP (Write Protect) pin allows hardware write protection, while the software write protection feature prevents accidental modifications to the memory data
