ATmega48A/PA/88A/PA/168A/PA/328/P
ATMEL 8-BIT MICROCONTROLLER WITH 4/8/16/32KBYTES
IN-SYSTEM PROGRAMMABLE FLASH
Features
High Performance, Low Power Atmel AVR 8-Bit Microcontroller Family
Advanced RISC Architecture
131 Powerful Instructions Most Single Clock Cycle Execution
32 x 8 General Purpose Working Registers
Fully Static Operation
Up to 20 MIPS Throughput at 20MHz
On-chip 2-cycle Multiplier
High Endurance Non-volatile Memory Segments
4/8/16/32KBytes of In-System Self-Programmable Flash program memory
256/512/512/1KBytes EEPROM
512/1K/1K/2KBytes Internal SRAM
Write/Erase Cycles: 10,000 Flash/100,000 EEPROM
(1)
Data retention: 20 years at 85 C/100 years at 25 C
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
Peripheral Features
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
Six PWM Channels
8-channel 10-bit ADC in TQFP and QFN/MLF package
Temperature Measurement
6-channel 10-bit ADC in PDIP Package
Temperature Measurement
Programmable Serial USART
Master/Slave SPI Serial Interface
2
Byte-oriented 2-wire Serial Interface (Philips I C compatible)
Programmable Watchdog Timer with Separate On-chip Oscillator
On-chip Analog Comparator
Interrupt and Wake-up on Pin Change
Atmel-8271JS-AVR- ATmega-Datasheet_11/2015 Special Microcontroller Features
Power-on Reset and Programmable Brown-out Detection
Internal Calibrated 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
23 Programmable I/O Lines
28-pin PDIP, 32-lead TQFP, 28-pad QFN/MLF and 32-pad QFN/MLF
Operating Voltage:
1.8 - 5.5V
Temperature Range:
-40 C to 85 C
Speed Grade:
0 - 4MHz@1.8 - 5.5V, 0 - 10MHz@2.7 - 5.5.V, 0 - 20MHz @ 4.5 - 5.5V
Power Consumption at 1MHz, 1.8V, 25 C
Active Mode: 0.2mA
Power-down Mode: 0.1A
Power-save Mode: 0.75A (Including 32kHz RTC)
ATmega48A/PA/88A/PA/168A/PA/328/P [DATASHEET] 2
Atmel-8271JS-AVR- ATmega-Datasheet_11/2015