AT90S4433 Просмотр технического описания (PDF) - Atmel Corporation

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AT90S4433

8-bit Microcontroller with 2K/4K bytes In-System Programmable Flash

Atmel Corporation 

AT90S/LS2333 and AT90S/LS4433

Block Diagram

Figure 1. The AT90S2333/4433 Block Diagram

VCC

PC0 - PC5

GND

AVCC

AGND

AREF

PORTC DRIVERS

DATA REGISTER

PORTC

DATA DIR.

REG. PORTC

8-BIT DATA BUS

ANALOG MUX

ADC

INTERNAL

OSCILLATOR

PROGRAM

COUNTER

STACK

POINTER

WATCHDOG

TIMER

PROGRAM

FLASH

INSTRUCTION

REGISTER

INSTRUCTION

DECODER

CONTROL

LINES

SRAM

GENERAL

PURPOSE

REGISTERS

X

Y

Z

ALU

MCU CONTROL

REGISTER

TIMER/

COUNTERS

INTERRUPT

UNIT

EEPROM

STATUS

REGISTER

PROGRAMMING

LOGIC

SPI

UART

OSCILLATOR

TIMING AND

CONTROL

XTAL1

XTAL2

RESET

DATA REGISTER

PORTB

DATA DIR.

REG. PORTB

PORTB DRIVERS

DATA REGISTER

PORTD

DATA DIR.

REG. PORTD

PORTD DRIVERS

ANALOG

COMPARATOR

PB0 - PB5

PD0 - PD7

3

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