Microchip ATMEGA328-PU

AVR20MHz32KB（16K x 16）

Overview

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.

• 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 – 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 – 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 - [email protected] - 5.5V, 0 - [email protected] - 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)

Features

• Low power consumption

• 8-bit AVR RISC architecture

• 2KB of SRAM for data storage

• Maximum clock speed of 20 MHz

• Temperature range of -40°C to 85°C

• JTAG interface for debugging and testing

• 32KB of Flash memory for program storage

• 1KB of EEPROM for non-volatile data storage

• Wide operating voltage range of 1.8V to 5.5V

• Available in PDIP, TQFP, and QFN package options.

• In-system programming capability for firmware updates

• Power-on reset and programmable brown-out detection

• Serial communication interfaces including UART, SPI, and I2C

• Integrated peripherals such as timers, counters, and interrupt controllers

• 23 general-purpose I/O pins, including 6 PWM outputs and 6 analog inputs

Applications

• Audio and music devices

• Industrial control systems

• Electronic games and toys

• LED lighting control systems

• Robotics and automation systems

• Sensor networks and data loggers

• Security and access control systems.

• Medical devices and diagnostic tools

• Arduino projects and development boards

• Smart home automation and Internet of Things (IoT) devices