ATmega16M1 datasheet(8/365 Pages) ATMEL

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7647F–AVR–04/09

ATmega16/32/64/M1/C1

Overview

The ATmega16/32/64/M1/C1 is a low-power CMOS 8-bit microcontroller based on the AVR

enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the

ATmega16/32/64/M1/C1 achieves throughputs approaching 1 MIPS per MHz allowing the sys-

tem designer to optimize power consumption versus processing speed.

2.1

Block Diagram

Figure 2-1.

Block Diagram

The AVR core combines a rich instruction set with 32 general purpose working registers. All the

32 registers are directly connected to the Arithmetic Logic Unit (ALU), allowing two independent

registers to be accessed in one single instruction executed in one clock cycle. The resulting

architecture is more code efficient while achieving throughputs up to ten times faster than con-

ventional CISC microcontrollers.

Flash Program

Memory

Instruction

Decoder

Program

Counter

Control Lines

32 x 8

General

Purpose

Registrers

ALU

Status

and Control

I/O Lines

EEPROM

Data Bus 8-bit

Data

SRAM

Interrupt

Unit

SPI

Unit

Watchdog

Timer

4 Analog

Comparators

DAC

ADC

MPSC

Timer 1

Timer 0

HW LIN/UART

CAN

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ATmega16M1 Datasheet(PDF) 8 Page - ATMEL Corporation

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