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ATmega644PA - 8-bit Microcontroller

Download the ATmega644PA datasheet PDF (ATmega1284P included). The manufacturer datasheet provides complete specifications, pinout details, electrical characteristics, and typical applications for 8-bit microcontroller.

Features

  • High-performance, low-power 8-bit Atmel® 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 2-cycle multiplier.
  • High endurance non-volatile memory segments ̶ 16/32/64/128KBytes of In-System Self-programmable Flash program memory ̶ 512/1K/2K/4KBytes EEPROM ̶ 1/2/4/16KBytes Internal SRAM ̶ Write/Erase.

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Note: The manufacturer provides a single datasheet file (ATmega1284P_ATMELCorporation.pdf) that lists specifications for multiple related part numbers.

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Full PDF Text Transcription

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ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P 8-bit Atmel Microcontroller with 16/32/64/128K Bytes In-System Programmable Flash DATASHEET Features  High-performance, low-power 8-bit Atmel® 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 2-cycle multiplier  High endurance non-volatile memory segments ̶ 16/32/64/128KBytes of In-System Self-programmable Flash program memory ̶ 512/1K/2K/4KBytes EEPROM ̶ 1/2/4/16KBytes 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 Program
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