AT90LS8535-4MC View Datasheet(PDF) - Atmel Corporation

Part Name

Description

Manufacturer

AT90LS8535-4MC

8-Bit AVR® Microcontroller with 4K/8K Bytes In-System Programmable Flash

Atmel Corporation 

Description

Block Diagram

1041H–11/01

AT90S/LS8535

The AT90S8535 is a low-power CMOS 8-bit microcontroller based on the AVR RISC

architecture. By executing powerful instructions in a single clock cycle, the AT90S8535

achieves throughputs approaching 1 MIPS per MHz allowing the system designer to

optimize power consumption versus processing speed.

Figure 1. The AT90S8535 Block Diagram

PA0 - PA7

VCC

PC0 - PC7

GND

AVCC

AGND

AREF

PORTA DRIVERS

PORTC DRIVERS

DATA REGISTER

PORTA

DATA DIR.

REG. PORTA

DATA REGISTER

PORTC

8-BIT DATA BUS

DATA DIR.

REG. PORTC

ANALOG MUX

ADC

INTERNAL

OSCILLATOR

OSCILLATOR

OSCILLATOR

PROGRAM

COUNTER

STACK

POINTER

WATCHDOG

TIMER

TIMING AND

CONTROL

XTAL1

XTAL2

RESET

PROGRAM

FLASH

SRAM

MCU CONTROL

REGISTER

INSTRUCTION

REGISTER

INSTRUCTION

DECODER

CONTROL

LINES

GENERAL

PURPOSE

REGISTERS

X

Y

Z

ALU

TIMER/

COUNTERS

INTERRUPT

UNIT

EEPROM

STATUS

REGISTER

PROGRAMMING

LOGIC

SPI

UART

DATA REGISTER

PORTB

DATA DIR.

REG. PORTB

PORTB DRIVERS

DATA REGISTER

PORTD

DATA DIR.

REG. PORTD

PORTD DRIVERS

PB0 - PB7

PD0 - PD7

3

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