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ATMEGA163 Datasheet(PDF) 3 Page - ATMEL Corporation

Part No. ATMEGA163
Description  8-bit Microcontroller with 16K Bytes In-System Programmable Flash
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Maker  ATMEL [ATMEL Corporation]
Homepage  http://www.atmel.com
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 3 page
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3
ATmega163(L)
1142E–AVR–02/03
Description
The ATmega163 is a low-power CMOS 8-bit microcontroller based on the AVR architec-
ture. By executing powerful instructions in a single clock cycle, the ATmega163
achieves throughputs approaching 1 MIPS per MHz allowing the system designer to
optimize power consumption versus processing speed.
Block Diagram
Figure 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
PROGRAM
COUNTER
INTERNAL
OSCILLATOR
WATCHDOG
TIMER
STACK
POINTER
PROGRAM
FLASH
MCU CONTROL
REGISTER
SRAM
GENERAL
PURPOSE
REGISTERS
INSTRUCTION
REGISTER
TIMER/
COUNTERS
INSTRUCTION
DECODER
DATA DIR.
REG. PORTB
DATA DIR.
REG. PORTA
DATA DIR.
REG. PORTD
DATA DIR.
REG. PORTC
DATA REGISTER
PORTB
DATA REGISTER
PORTA
ANALOG MUX
ADC
DATA REGISTER
PORTD
DATA REGISTER
PORTC
PROGRAMMING
LOGIC
TIMING AND
CONTROL
OSCILLATOR
OSCILLATOR
INTERRUPT
UNIT
EEPROM
SPI
UART
STATUS
REGISTER
Z
Y
X
ALU
PORTB DRIVERS
PORTA DRIVERS
PORTD DRIVERS
PORTC DRIVERS
PB0 - PB7
PA0 - PA7
RESET
VCC
AVCC
AGND
AREF
GND
XTAL2
XTAL1
CONTROL
LINES
PD0 - PD7
PC0 - PC7
8-BIT DATA BUS
2-WIRE SERIAL
INTERFACE
INTERNAL
REFERENCE
INTERNAL
CALIBRATED
OSCILLATOR




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