The PIC18F27Q43-I/SP is a 8-bit microcontroller with 128KB Flash, 8KB RAM, 1KB EEPROM memory, assembled on a 20-lead 4x4mm QFN package. This microcontroller offers advanced Core Independent Peripherals (CIP) such as 12-bit ADC2 (2x12-bit ADC), 5-bit DAC, comparator, Programmable Voltage Supply Monitor (PVSDM) and C Multiplexed General Purpose Outputs (C MPGO) which enable interrupt-driven operations. The PIC18F27Q43 also includes peripheral CIPs such as Capture/Compare/PWM (CCP) module, clock and watchdog timer (CWG), halt (HLT), windowed watch dog timer (WWDT), scan/CRC and Input Capture multiplexed with Zero Cross Detect (ZCD). Also PIC18F27Q43-I/SP chip features enhanced USART (EUSART) module which supports SPI/I2C modes, programmable power saving modes such as Idle/Doze/Peripheral Module Disable (PMD) as well as Programmable Peripheral Interface (PPS). This device is designed and manufactured by Microchip, one of the leading companies in microcontroller solutions.