ATMEGA48A-AU

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.

Key features

• High Performance, Low Power AVR* g -Bit Microcontroller Family
• Advanced RISC Architecture
• 131 Powerful Instructions – Most Single Clock Cycle Execution
• 32x8 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 一 256/512/512/1KBytes EEPROM 512/1K/1K/2KBytes Internal SRAM 一 Write/Erase Cycles: 10,000 Flash/100,000 EEPROM 一 Data retention: 20 years at 85℃/100 years at 25℃
• 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
• 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
• 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
• 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℃ to 85℃
• Speed Grade: 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℃ Active Mode: 0.2mA
• Power-down Mode: 0.1μA
• Power-save Mode: 0.75μA (Including 32kHz RTC)