.The PIC18LF2321-I/SS is a PIC® 18F Microcontroller IC manufactured by Microchip. It is an 8-bit device with a 40MHz clock speed and 8KB (4K x 16) FLASH storage. The PIC18LF2321-I/SS is packaged in a 28-pin Surface Mounted SSOP (Small Outline Package) and includes an integrated on-chip oscillator, RAM, 8-level deep hardware stack, 10-bit A/D converter, and other features that make it suitable for applications requiring up to 28 pins of I/O. The PIC18LF2321-I/SS is designed for embedded control, and has features such as multiple interrupt sources, sleep and idle modes, an LCD driver module, and more making it ideal for applications requiring complex instructions and powerful analog functions. This device is available with industry-standard C and assembly code compatibility, with up to 8192 bytes of on-chip FLASH program memory and 256 Bytes of RAM.