●Overview
●The ATmega48A/PA/88A/PA/168A/PA/328/P is a low-power CMOS 8-bit microcontroller based on the AVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the ATmega48A/PA/88A/PA/168A/PA/328/P achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimizepower consumption versus processing speed.
●Features
●• High Performance, Low Power Atmel® AVR® 8-Bit Microcontroller
●• 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
●• 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 withSeparate 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
●– 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 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: 0.1µA
●– Power-save Mode: 0.75µA(Including 32kHz RTC)
