ATmega644A Datasheet - Microchip

ATmega644A CMOS 8-bit microcontrollers

15 3 Resources 17 4 About code examples 17 5 Data retention 17 6 Capacitive touch sensing 17 7 AVR CPU Core .

ATmega164A/PA/324A/PA/644A/PA/1284/P Introduction megaAVR® Data Sheet The ATmega164A/PA/324A/PA/644A/PA/1284/P is a low power, CMOS 8-bit microcontrollers based on the AVR® enhanced RISC architecture. The ATmega164A/PA/324A/PA/644A/PA/1284/P is a 40/49-pins device ranging from 16 KB to 128 KB Flash, with 1 KB to 16 KB SRAM, 512 Bytes to 4 KB EEPROM. By executing instructions in a single clock cycle, the devices achieve CPU throughput approaching one million instructions per second (MIPS) per .

ATmega644A Features

* High-performance, low-power 8-bit AVR® Microcontroller

* Advanced RISC architecture

* 131 powerful Instructions

* most single-clock cycle execution

* 32 × 8 general purpose working registers

* Fully static operation

* Up to 20MIPS throughput at 20MHz

* On-chip

ATmega644A Datasheet (4.41 MB)