PIC24FJxxGx 16-bit Microcontrollers Microchip Technology PIC24FJ64Gx, PIC24FJ128Gx, and PIC24FJ256Gx 16-bit Microcontrollers (MCUs) are ideal for low power and connectivity applications. These devices offer multiple I2C, SPI, and UART peripherals, and multiple independent timers. These MCUs are available with 8kB to 16kB RAM memory for buffering and 64kB to 256kB Enhanced Flash program memory. The PIC24FJxxGx family of microcontrollers are offered in in 28, 44, 64, 80, 100, and 121 pin packages for design flexibility.