Description
1.1.1 VCC
Digital supply voltage.1.1.2 GND
Ground.1.1.3
Port A (PA2..PA0) Port A is a 3-bit bi-directional I/O port with internal pull-up resistors (selected for each bit).The Port A output buffers have symmetrical drive characteristics with both high sink and source capability, except PA2 which has the RESET capability.To use pin PA2 as I/O pin, instead of RESET pin, program (“0”) RSTDISBL fuse.As inputs, Port A pins that are externally pulled low will source current if the pull-up
Features
- High Performance, Low Power AVR® 8-Bit Microcontroller.
- Advanced RISC Architecture.
- 120 Powerful Instructions.
- Most Single Clock Cycle Execution.
- 32 x 8 General Purpose Working Registers.
- Fully Static Operation.
- Up to 20 MIPS Throughput at 20 MHz.
- Data and Non-volatile Program and Data Memories.
- 2/4K Bytes of In-System Self Programmable Flash.
- Endurance 10,000 Write/Erase Cycles.
- 128/256 Bytes In-.