8-bit Microcontroller with 32K Bytes In-System Programmable Flash
Features
• High-performance, Low-power AVR® 8-bit Microcontroller
• Advanced RISC Architecture
– 131 Powerful Instructions
– Most Single-clock Cycle Execution
– 32 x 8 General Purpose Working Registers
– Fully Static Operation
– Up to 16 MIPS Throughput at 16 MHz
– On-chip 2-cycle Multiplier
• High Endurance Non-volatile Memory segments
– 32K Bytes of In-System Self-programmable Flash program memory
– 1024 Bytes EEPROM
– 2K Byte Internal SRAM
– Write/Erase Cycles: 10,000 Flash/100,000 EEPROM
– Data retention: 20 years at 85°C/100 years at 25°C(1)
– 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
Overview
The ATmega32A is a low-power CMOS 8-bit microcontroller based on
the AVR enhanced RISC architecture. By executing powerful
instructions in a single clock cycle, the ATmega32A achieves
throughputs approaching 1 MIPS per MHz allowing the system designer
to optimize power consumption versus processing speed.
The AVR core combines a rich instruction set with 32 general
purpose working registers. All the 32 registers are directly
connected to the Arithmetic Logic Unit (ALU), allowing two
independent registers to be accessed in one single instruction
executed in one clock cycle. The resulting architecture is more
code efficient while achieving throughputs up to ten times faster
than conventional CISC microcontrollers.
