ATMEGA8-16AU SL383 Atmel, ATMEGA8-16AU SL383 Datasheet - Page 3

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ATMEGA8-16AU SL383

Manufacturer Part Number
ATMEGA8-16AU SL383
Description
pin, flash, Microcontrollers, Microprocessors, tqfp, Semiconductors and Actives, mcu, bit
Manufacturer
Atmel
Datasheet
Overview
Block Diagram
2486VS–AVR–05/09
The ATmega8 is a low-power CMOS 8-bit microcontroller based on the AVR RISC architecture.
By executing powerful instructions in a single clock cycle, the ATmega8 achieves throughputs
approaching 1 MIPS per MHz, allowing the system designer to optimize power consumption ver-
sus processing speed.
Figure 1. Block Diagram
RESET
GND
VCC
AGND
AREF
INSTRUCTION
INSTRUCTION
AVR CPU
PROGRAMMING
CONTROL
PROGRAM
PROGRAM
REGISTER
COUNTER
DECODER
FLASH
LINES
PORTC DIGITAL INTERFACE
MUX &
PORTC DRIVERS/BUFFERS
LOGIC
ADC
+
-
PC0 - PC6
REGISTERS
INTERFACE
INTERFACE
GENERAL
PURPOSE
REGISTER
POINTER
STATUS
STACK
COMP.
SRAM
ADC
ALU
SPI
X
Y
Z
OSCILLATOR
WATCHDOG
INTERRUPT
COUNTERS
MCU CTRL.
INTERNAL
& TIMING
EEPROM
TIMERS/
USART
PORTB DIGITAL INTERFACE
TIMER
PORTD DIGITAL INTERFACE
PORTB DRIVERS/BUFFERS
PORTD DRIVERS/BUFFERS
UNIT
TWI
PB0 - PB7
PD0 - PD7
OSCILLATOR
OSCILLATOR
ATmega8(L)
XTAL1
XTAL2
3

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