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ATTINY2313V

8-bit AVR® Microcontroller with 2K Bytes In-System Programmable Flash

Atmel Corporation 

Block Diagram

Figure 2. Block Diagram

ATtiny2313

PA0 - PA2

PORTA DRIVERS

VCC

GND

DATA REGISTER

PORTA

DATA DIR.

REG. PORTA

8-BIT DATA BUS

PROGRAM

COUNTER

PROGRAM

FLASH

INSTRUCTION

REGISTER

INSTRUCTION

DECODER

CONTROL

LINES

PROGRAMMING

LOGIC

STACK

POINTER

SRAM

GENERAL

PURPOSE

REGISTER

ALU

STATUS

REGISTER

SPI

XTAL1

XTAL2

INTERNAL

CALIBRATED

OSCILLATOR

INTERNAL

OSCILLATOR

WATCHDOG

TIMER

MCU CONTROL

REGISTER

MCU STATUS

REGISTER

TIMER/

COUNTERS

INTERRUPT

UNIT

EEPROM

USI

OSCILLATOR

TIMING AND

CONTROL

RESET

ON-CHIP

DEBUGGER

USART

DATA REGISTER

PORTB

DATA DIR.

REG. PORTB

PORTB DRIVERS

DATA REGISTER

PORTD

DATA DIR.

REG. PORTD

PORTD DRIVERS

PB0 - PB7

PD0 - PD6

3

2543L–AVR–08/10

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