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ATMEGA163 Datasheet(PDF) 3 Page - ATMEL Corporation |
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3 page 
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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