AT90S8535 40-Pin 8MHz 8kB Microcontroller Technical Data

Photograph

Features

High-performance, Low-power AVR 8-bit Microcontroller
Advanced RISC Architecture
- - 118 Instructions - Most Single Clock Cycle Execution
- - 32 x 8 General Purpose Working Registers
- - Up to 8 MIPS Throughput at 8MHz
- - Fully Static Operation
Data and Nonvolatile Program Memory
- - 8k Bytes of In-System Self-Programmable Flash
- - 512 Bytes of In-System Programmable EEPROM
- - 512 Bytes Internal SRAM
- - Programming Lock for Flash Program and EEPROM Data Security
Peripheral Features
- - Programmable Watchdog Timer with Separate On-chip Oscillator
- - Master/Slave SPI Serial Interface
- - Two 8-bit Timer/Counters with Separate Prescalar, Compare
- - One 16-bit Timer/Counter with Separate Prescaler, Compare and Dual 8,9 or 10-bit PWM
- - Analog Comparator
- - Real Time Counter with Separate Oscillator and Counter Mode
- - Programmable Serial UART
- - 8-channel, 10-bit ADC
Special Microcontroller Features
- - Low-Power Idle, Power-Save and Power-Down Modes
- - External and Internal Interrupt Sources
- - Power-on Reset Circuit
I/O and Packages
- - 32 Programmable I/O Lines
- - 40-pin PDIP
Power Consumption at 4 Mhz, 3V, 35 °C
- - Active: 6.4mA
- - Idle Mode: 1.9mA
- - Power-down Mode: < 1µA

Pin Layout

Pin Description

Pin Number	Description
1 - 8	PB0-PB7 - Port B
9	RESET - Reset (Active Low)
10	Vcc - Power Supply
11	GND - Ground
12	XTAL2 - Crystal
13	XTAL1 - Crystal
14 - 21	PD0-PD7 - Port D
22 - 29	PC0-PC7 - Port C
30	AVCC - Analog Circuits Power Supply
31	AGND - Analog Ground
32	AREF - Analog Reference
33 - 40	PA7-PA0 - Port A

Dimensional Drawing

Technical Data

Datasheet

Application Notes