8285ES–AVR–02/2013

Features

– 130 powerful instructions – most single clock cycle execution

– 32 × 8 general purpose working registers

– Fully static operation

– Up to 16MIPS throughput at 16MHz (Atmel ATmega165PA/645P)

– Up to 20MIPS throughput at 20MHz (Atmel ATmega165A/325A/325PA/645A/3250A/3250PA/6450A/6450P)

– On-chip 2-cycle multiplier

– In-system self-programmable flash program memory

• 16KBytes (ATmega165A/ATmega165PA)

• 32KBytes (ATmega325A/ATmega325PA/ATmega3250A/ATmega3250PA)

• 64KBytes (ATmega645A/ATmega645P/ATmega6450A/ATmega6450P)

–EEPROM

• 512Bytes (ATmega165A/ATmega165PA)

• 1Kbytes (ATmega325A/ATmega325PA/ATmega3250A/ATmega3250PA)

• 2Kbytes (ATmega645A/ATmega645P/ATmega6450A/ATmega6450P)

– Internal SRAM

• 1KBytes (ATmega165A/ATmega165PA)

• 2KBytes (ATmega325A/ATmega325PA/ATmega3250A/ATmega3250PA)

• 4KBytes (ATmega645A/ATmega645P/ATmega6450A/ATmega6450P)

– Write/erase cycles: 10,000 flash/100,000 EEPROM

– Data retention: 20 years at 85°C/100 years at 25

C (1)

– Optional Boot Code Section with Independent Lock Bits

• In-System Programming by On-chip Boot Program

• True read-while-write operation

– Programming lock for software security

– Capacitive touch buttons, sliders and wheels

– Atmel QTouch and QMatrix acquisition

– Up to 64 sense channels

– Boundary-scan capabilities according to the JTAG standard

– Extensive on-chip debug support

– Programming of Flash, EEPROM, Fuses, and Lock Bits through the JTAG Interface

– Two 8-bit Timer/Counters with Separate Prescaler and Compare Mode

– 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

– Programmable serial USART

– Master/Slave SPI Serial Interface

– Universal Serial Interface with Start Condition detector

– Programmable Watchdog Timer with separate on-chip oscillator

– On-chip Analog Comparator

– Interrupt and Wake-up on pin change

– Power-on reset and programmable Brown-out detection

– Internal calibrated oscillator

– External and internal interrupt sources

– Five sleep modes: Idle, ADC Noise Reduction, Power-save, Power-down and Standby

– 54/69 programmable I/O lines

– 64/100-lead TQFP, 64-pad QFN/MLF and 64-pad DRQFN

– ATmega 165A/165PA/645A/645P: 0 - 16MHz @ 1.8 - 5.5V

– ATmega325A/325PA/3250A/3250PA/6450A/6450P: 0 - 20MHz @ 1.8 - 5.5V

– -40°C to 85

C industrial

–Active mode:

• 1MHz, 1.8V: 215µA

• 32kHz, 1.8V: 8µA (including oscillator)

– Power-down mode: 0.1µA at 1.8V

– Power-save mode: 0.6µA at 1.8V (Including 32kHz RTC)

Note:

1.

Reliability Qualification results show that the projected data retention failure rate is much less than 1 PPM over

20 years at 85°C or 100 years at 25°C.

Atmel ATmega165A/PA/325A/PA/3250A/PA/645A/P/6450A/P

8-bit Atmel Microcontroller with 16/32/64KB In-System Programmable Flash

SUMMARY