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ATMEGA325A-AU Datasheet, PDF (1/24 Pages) ATMEL Corporation – 8-bit Atmel Microcontroller with 16/32/64KB In-System Programmable Flash | |||
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Atmel ATmega165A/PA/325A/PA/3250A/PA/645A/P/6450A/P
8-bit Atmel Microcontroller with 16/32/64KB In-System Programmable Flash
SUMMARY
Features
⢠High performance, low power Atmel® AVR® 8-Bit Microcontroller
⢠Advanced RISC architecture
â 130 powerful instructions â most single clock cycle execution
â 32 Ã 8 general purpose working registers
â Fully static operation
â Up to 16MIPS throughput at 16MHz (Atmel ATmega165PA/645P)
â Up to 20MIPS throughput at 20MHz (Atmel ATmega165A/325A/325PA/645A/3250A/3250PA/6450A/6450P)
â On-chip 2-cycle multiplier
⢠High endurance non-volatile memory segments
â In-system self-programmable flash program memory
⢠16KBytes (ATmega165A/ATmega165PA)
⢠32KBytes (ATmega325A/ATmega325PA/ATmega3250A/ATmega3250PA)
⢠64KBytes (ATmega645A/ATmega645P/ATmega6450A/ATmega6450P)
â EEPROM
⢠512Bytes (ATmega165A/ATmega165PA)
⢠1Kbytes (ATmega325A/ATmega325PA/ATmega3250A/ATmega3250PA)
⢠2Kbytes (ATmega645A/ATmega645P/ATmega6450A/ATmega6450P)
â Internal SRAM
⢠1KBytes (ATmega165A/ATmega165PA)
⢠2KBytes (ATmega325A/ATmega325PA/ATmega3250A/ATmega3250PA)
⢠4KBytes (ATmega645A/ATmega645P/ATmega6450A/ATmega6450P)
â Write/erase cycles: 10,000 flash/100,000 EEPROM
â Data retention: 20 years at 85°C/100 years at 25ï°C (1)
â Optional Boot Code Section with Independent Lock Bits
⢠In-System Programming by On-chip Boot Program
⢠True read-while-write operation
â Programming lock for software security
⢠Atmel QTouch® library support
â Capacitive touch buttons, sliders and wheels
â Atmel QTouch and QMatrix acquisition
â Up to 64 sense channels
⢠JTAG (IEEE std. 1149.1 compliant) interface
â Boundary-scan capabilities according to the JTAG standard
â Extensive on-chip debug support
â Programming of Flash, EEPROM, Fuses, and Lock Bits through the JTAG Interface
⢠Peripheral Features
â Two 8-bit Timer/Counters with Separate Prescaler and Compare Mode
â One 16-bit Timer/Counter with Separate Prescaler, Compare Mode, and Capture Mode
â Real time counter with separate oscillator
â Four PWM channels
â 8-channel, 10-bit ADC
â Programmable serial USART
â Master/Slave SPI Serial Interface
â Universal Serial Interface with Start Condition detector
â Programmable Watchdog Timer with separate on-chip oscillator
â On-chip Analog Comparator
â Interrupt and Wake-up on pin change
⢠Special microcontroller features
â Power-on reset and programmable Brown-out detection
â Internal calibrated oscillator
â External and internal interrupt sources
â Five sleep modes: Idle, ADC Noise Reduction, Power-save, Power-down and Standby
⢠I/O and packages
â 54/69 programmable I/O lines
â 64/100-lead TQFP, 64-pad QFN/MLF and 64-pad DRQFN
⢠Speed grade:
â ATmega 165A/165PA/645A/645P: 0 - 16MHz @ 1.8 - 5.5V
â ATmega325A/325PA/3250A/3250PA/6450A/6450P: 0 - 20MHz @ 1.8 - 5.5V
⢠Temperature range:
â -40°C to 85ï°C industrial
⢠Ultra-low power consumption (picoPower® devices)
â Active mode:
⢠1MHz, 1.8V: 215µA
⢠32kHz, 1.8V: 8µA (including oscillator)
â Power-down mode: 0.1µA at 1.8V
â 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.
8285ESâAVRâ02/2013
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