ATMEGA644P Datasheet - ATMEL Corporation

ATMEGA644P, 8-Bit Microcontroller

8-bit Atmel Microcontroller with 16K/32K/64K Bytes In-System Programmable Flash ATmega164P/V-ATmega324P/V-ATmega644P/V DATASHEET .
2.

Features

* High-performance, Low-power Atmel® AVR® 8-bit Microcontroller
* Advanced RISC Architecture ̶ 131 Powerful Instructions
* Most Single-clock Cycle Execution ̶ 32 × 8 General Purpose Working Registers ̶ Fully Static Operation ̶ Up to 20 MIPS Throughput at 20 MHz ̶ On-chip 2-cycle Mult

Applications

* The ATmega164P/324P/644P AVR is supported with a full suite of program and system development tools including: C compilers, macro assemblers, program debugger/simulators, in-circuit emulators, and evaluation kits. 2.2 Comparison Between ATmega164P, ATmega324P and ATmega644P Table 2-1. Differences

ATMEGA644P_ATMELCorporation.pdf