Microchip ATMEGA4809-AU, 8bit AVR Microcontroller, ATmega, 20MHz, 48 kB Flash, 48-Pin TQFP

The ATmega4809 is a microcontroller featuring the 8-bit AVR® processor with hardware multiplier - running at up to 20MHz and with up to 48 KB Flash, 6 KB SRAM and 256 bytes of EEPROM in 48-pin packages. The series uses the latest Core Independent Peripherals with low power features. Including Event System, intelligent analog and advanced peripherals.

Hardware multiplier
Three sleep modes
Idle
Standby
Power Down
Event System
Watchdog Timer (WDT)
Power-On Reset (POR)
Brown-Out Detection (BOD)
Single pin programming and debugging interface (UPDI)
16 Channel 10-bit ADC with Voltage Reference
Analog Comparator (AC)
Configurable Custom Logic (CCL)
5x 16-bit Timer (TCA / TCB)
Cyclical Redundancy Check (CRC/SCAN)
SPI / I2C / USART