The PIC18F27Q43-E/SS is an 8-bit microcontroller manufactured by Microchip. It has 128KB Flash, 8KB RAM, 1KB EEPROM, 12-bit ADC2, 5-bit DAC, comparators, PWM, CCP, CWG, HLT, WWDT, SCAN/CRC, ZCD, PPS, EUSART, SPI/I2C, IDLE/DOZE/PMD functions that are combined into a single device. It supports multiple low-power modes and has a wide operating range, making it suitable for power-sensitive applications. It has on-chip diagnostics which ease debugging and programming of complex applications. It uses a 32-bit RISC architecture and a high-performance 8-bit core. It also features arbitration logic for shared peripherals and address scrambler functions that together enable the support of high throughput and data security.