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ATMEGA644P-20MU 其他数据使用手册 - ATMEL(爱特美尔)
制造商:
ATMEL(爱特美尔)
分类:
8位微控制器
封装:
QFN-44
描述:
ATMEL ATMEGA644P-20MU 微控制器, 8位, 低功率高性能, ATmega, 20 MHz, 64 KB, 4 KB, 44 引脚, QFN
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功能描述在P1
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ATMEGA644P-20MU数据手册
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AVR508: Migration from ATmega644 to
ATmega644P
Features
• General Porting Considerations
• Register and bit names
• Low-frequency Crystal and Timer/Counter Oscillator
1 Introduction
This application note summarizes the relevant differences when migrating from
ATmega644 to ATmega644P. For detailed information on the devices please see
the respective datasheets.
The ATmega644P is designed to be pin and functionality compatible with
ATmega644, but because of improvements mentioned in this application note there
may be a need for minor modifications in the application when migrating from
ATmega644 to ATmega644P.
Further an additional USART has been added making the ATmega644P fully
compatible with ATmega164P/324P.
8-bit
Microcontrollers
Application Note
Rev. 8038A-AVR-07/06
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