ATMEL Atmel AVR micro controller ATmega32HVB handbook

ATmega16HVB/32HVB is Atmel's high-performance low-power AVR® 8-bit microcontroller with 124 powerful instructions, most of which are executed in a single clock cycle, 32 x 8 general-purpose working registers, fully static operation, and a throughput of up to 8 MIPS at 8 MHz.