The MCP7940N-E/MS is a versatile and reliable battery-backed Real Time Clock/Calendar (RTCC) integrated circuit from MICROCHIP TECH. It features a 64-byte SRAM making it suitable for various applications that require accurate timekeeping and calendar functions. With a wide voltage range of 1.8 to 5.5V DC this RTCC can seamlessly operate in diverse power supply environments. The MCP7940N-E/MS supports both 12/24-hour time formats and interfaces through the popular I2C communication protocol pr