ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P 8-bit Atmel Microcontroller with 16/32/64/128K Bytes In-System Programmable Flash DATASHEET Features High-performance, low-power 8-bit Atmel AVR Microcontroller Advanced RISC architecture 131 powerful Instructions most single-clock cycle execution 32 8 general purpose working registers Fully static operation Up to 20MIPS throughput at 20MHz On-chip 2-cycle multiplier High endurance non-volatile memory segments 16/32/64/128KBytes of In-System Self-programmable Flash program memory 512/1K/2K/4KBytes EEPROM 1/2/4/16KBytes Internal SRAM Write/Erase Cycles: 10,000 Flash/ 100,000 EEPROM (1) Data retention: 20 years at 85C/ 100 years at 25C 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 Atmel QTouch library support Capacitive touch buttons, sliders and wheels QTouch and QMatrix acquisition Up to 64 sense channels JTAG (IEEE std. 1149.1 Compliant) Interface 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 Peripheral Features Two 8-bit Timer/Counters with Separate Prescalers and Compare Modes One/two 16-bit Timer/Counter with Separate Prescaler, Compare Mode, and Capture Mode Real Time Counter with Separate Oscillator Six PWM Channels 8-channel, 10-bit ADC Differential mode with selectable gain at 1, 10 or 200 Byte-oriented Two-wire Serial Interface Two Programmable Serial USART Master/Slave SPI Serial Interface Atmel-8272G-AVR-01/2015 Programmable Watchdog Timer with Separate On-chip Oscillator On-chip Analog Comparator Interrupt and Wake-up on Pin Change Special Microcontroller Features 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 I/O and Packages 32 Programmable I/O Lines 40-pin PDIP, 44-lead TQFP, 44-pad VQFN/QFN/MLF 44-pad DRQFN 49-ball VFBGA Operating Voltages 1.8 - 5.5V Speed Grades 0 - 4MHz 1.8 - 5.5V 0 - 10MHz 2.7 - 5.5V 0 - 20MHz 4.5 - 5.5V Power Consumption at 1MHz, 1.8V, 25 C Active: 0.4mA Power-down Mode: 0.1A Power-save Mode: 0.6A (Including 32kHz RTC) Note: 1. See Data retention on page 9 for details. ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P DATASHEET 2 Atmel-8272G-AVR-01/2015