ATMEGA169 ATMEL [ATMEL Corporation], ATMEGA169 Datasheet - Page 359
ATMEGA169
Manufacturer Part Number
ATMEGA169
Description
8-bit Microcontroller with 16K Bytes In-System Programmable Flash
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.ATMEGA169.pdf
(365 pages)
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Table of Contents
2514P–AVR–07/06
Features................................................................................................ 1
Pin Configurations............................................................................... 2
Overview............................................................................................... 3
About Code Examples......................................................................... 6
AVR CPU Core ..................................................................................... 7
AVR ATmega169 Memories .............................................................. 15
System Clock and Clock Options .................................................... 23
Power Management and Sleep Modes............................................. 32
Disclaimer ............................................................................................................. 2
Block Diagram ...................................................................................................... 3
Pin Descriptions.................................................................................................... 5
Introduction ........................................................................................................... 7
Architectural Overview.......................................................................................... 7
ALU – Arithmetic Logic Unit.................................................................................. 8
Status Register ..................................................................................................... 9
General Purpose Register File ........................................................................... 10
Stack Pointer ...................................................................................................... 11
Instruction Execution Timing............................................................................... 12
Reset and Interrupt Handling.............................................................................. 12
In-System Reprogrammable Flash Program Memory ........................................ 15
SRAM Data Memory........................................................................................... 16
EEPROM Data Memory...................................................................................... 17
I/O Memory ......................................................................................................... 22
Clock Systems and their Distribution .................................................................. 23
Clock Sources..................................................................................................... 24
Default Clock Source .......................................................................................... 24
Crystal Oscillator................................................................................................. 25
Low-frequency Crystal Oscillator ........................................................................ 26
Calibrated Internal RC Oscillator ........................................................................ 27
External Clock..................................................................................................... 28
Clock Output Buffer ............................................................................................ 29
Timer/Counter Oscillator..................................................................................... 29
System Clock Prescaler...................................................................................... 29
Idle Mode ............................................................................................................ 33
ADC Noise Reduction Mode............................................................................... 33
Power-down Mode.............................................................................................. 33
Power-save Mode............................................................................................... 33
Standby Mode..................................................................................................... 34
Power Reduction Register .................................................................................. 34
ATmega169/V
i
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