Microchip ATMEGA324PB-AU, 8bit AVR Microcontroller, ATmega, 20MHz, 32 kB Flash, 44-Pin TQFP

The high-performance Microchip picoPower 8-bit AVR RISC-based microcontroller combines 32kB ISP flash memory with read-while-write capabilities, 1kB EEPROM, 2kB SRAM, 39 general purpose I/O lines, 32 general purpose working registers.

Advanced RISC Architecture
131 Powerful Instructions
Most Single Clock Cycle Execution
32 x 8 General Purpose Working Registers
Fully Static Operation
Up to 20 MIPS Throughput at 20MHz
On-Chip 2-Cycle Multiplier
High Endurance Non-Volatile Memory Segments
32KBytes of In-System Self-Programmable Flash program memory
1KBytes EEPROM
2KBytes Internal SRAM
Write/Erase Cycles: 10,000 Flash/100,000 EEPROM
Data retention: 20 years at 85°C
Optional Boot Code Section with Independent Lock Bits
In-System Programming by On-chip Boot Program
True Read-While-Write Operation
Programming Lock for Software Security
Peripheral Features
Peripheral Touch Controller (PTC)
Capacitive