Datasheet

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2466T–AVR–07/10
ATmega16(L)
Table of Contents
Features 1
Pin Configurations 2
Disclaimer 2
Overview 3
Block Diagram 3
Pin Descriptions 4
Resources 6
Data Retention 6
About Code Examples 7
AVR CPU Core 8
Introduction 8
Architectural Overview 8
ALU – Arithmetic Logic Unit 9
Status Register 9
General Purpose Register File 11
Stack Pointer 12
Instruction Execution Timing 13
Reset and Interrupt Handling 13
AVR ATmega16 Memories 16
In-System Reprogrammable Flash Program Memory 16
SRAM Data Memory 17
EEPROM Data Memory 18
I/O Memory 23
System Clock and Clock Options 24
Clock Systems and their Distribution 24
Clock Sources 25
Default Clock Source 25
Crystal Oscillator 25
Low-frequency Crystal Oscillator 28
External RC Oscillator 28
Calibrated Internal RC Oscillator 29
External Clock 31
Timer/Counter Oscillator 31
Power Management and Sleep Modes 32