ATMEGA328PAU 8 Channel 8-bit Microcontrollers MCU 32KB In-system
Flash 20MHz 1.8V-5.5V
Introduction
The ATmega48A/PA/88A/PA/168A/PA/328/P is a low power, CMOS 8-bit
microcontrollers based on the AVR® enhanced RISC architecture. By
executing instructions in a single clock cycle, the devices achieve
CPU throughput approaching one million instructions per second
(MIPS) per megahertz, allowing the system designer to optimize
power consumption versus processing speed.
Features
High Performance, Low Power 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
̶ 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
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 VQFN package
Temperature Measurement ̶ 6-channel 10-bit ADC in SPDIP Package
Temperature Measurement ̶ Programmable Serial USART
̶ Master/Slave SPI Serial Interface
̶ Byte-oriented 2-wire Serial Interface (Philips I2C compatible)
̶ 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 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 SPDIP, 32-lead TQFP, 28-pad VQFN and 32-pad VQFN
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: 0.1µA
• Power-save Mode: 0.75µA (Including 32kHz RTC)
