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ATTINY13-12PI

8-bit Microcontroller with 1K Bytes In-System Programmable Flash

Atmel Corporation 

Overview

Block Diagram

The ATtiny13 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

ATtiny13 achieves throughputs approaching 1 MIPS per MHz allowing the system

designer to optimize power consumption versus processing speed.

Figure 2. Block Diagram

VCC

GND

INSTRUCTION

REGISTER

INSTRUCTION

DECODER

CONTROL

LINES

8-BIT DATABUS

STACK

POINTER

SRAM

PROGRAM

COUNTER

PROGRAM

FLASH

GENERAL

PURPOSE

REGISTERS

X

Y

Z

ALU

WATCHDOG

OSCILLATOR

WATCHDOG

TIMER

MCU CONTROL

REGISTER

MCU STATUS

REGISTER

TIMER/

COUNTER0

INTERRUPT

UNIT

PROGRAMMING

LOGIC

DATA

EEPROM

STATUS

REGISTER

CALIBRATED

INTERNAL

OSCILLATOR

TIMING AND

CONTROL

ADC /

ANALOG COMPARATOR

DATA REGISTER

PORT B

DATA DIR.

REG.PORT B

PORT B DRIVERS

PB0-PB5

RESET

CLKI

2 ATtiny13

2535B–AVR–01/04

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