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