Features

– 130 Powerful Instructions – Most Single Clock Cycle Execution

– 32 x 8 General Purpose Working Registers

– Fully Static Operation

– Up to 16 MIPS Throughput at 16 MHz

– On-chip 2-cycle Multiplier

– 8K Bytes of In-System Self-Programmable Flash

Endurance: 10,000 Write/Erase Cycles

– Optional Boot Code Section with Independent Lock Bits

In-System Programming by On-chip Boot Program

True Read-While-Write Operation

– 512 Bytes EEPROM

Endurance: 100,000 Write/Erase Cycles

– 512 Bytes Internal SRAM

– Programming Lock for Software Security

– Two 8-bit Timer/Counters with Separate Prescalers and Compare Modes

– One 16-bit Timer/Counter with Separate Prescaler, Compare Mode, and Capture

Mode

– Real Time Counter with Separate Oscillator

– Four PWM Channels

– 8-channel, 10-bit ADC

8 Single-ended Channels

7 Differential Channels for TQFP Package Only

2 Differential Channels with Programmable Gain at 1x, 10x, or 200x for TQFP

Package Only

– Byte-oriented Two-wire Serial Interface

– Programmable Serial USART

– Master/Slave SPI Serial Interface

– Programmable Watchdog Timer with Separate On-chip Oscillator

– On-chip Analog Comparator

– Power-on Reset and Programmable Brown-out Detection

– Internal Calibrated RC Oscillator

– External and Internal Interrupt Sources

– Six Sleep Modes: Idle, ADC Noise Reduction, Power-save, Power-down, Standby

and Extended Standby

– 32 Programmable I/O Lines

– 40-pin PDIP, 44-lead TQFP, 44-lead PLCC, and 44-pad QFN/MLF

– 2.7 - 5.5V for ATmega8535L

– 4.5 - 5.5V for ATmega8535

– 0 - 8 MHz for ATmega8535L

– 0 - 16 MHz for ATmega8535

8-bit

Microcontroller

with 8K Bytes

In-System

Programmable

Flash

ATmega8535

ATmega8535L

Summary

2502KS–AVR–10/06

Note: This is a summary document. A complete document

is available on our Web site at www.atmel.com.