ATMEGA328P – SMD

The ATMEGA328P 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 ATMEGA328P achieves throughputs approaching 1MIPS per MHz allowing the system designer to optimize power consumption versus processing speed.

The high-performance Power 8-bit AVR RISC-based microcontroller combines 32KB ISP flash memory with read-while-write capabilities, 1024B EEPROM, 2KB SRAM, 23 general purposes I/O lines, 32 general purpose working registers, three flexible timer/counters with compare modes, internal and external interrupts, serial programmable USART, a byte-oriented 2-wire serial interface, SPI serial port, a 6-channel 10-bit A/D converter (8-channels in TQFP and QFN/MLF packages), programmable watchdog timer with internal oscillator, and five software selectable power saving modes. The device operates between 1.8-5.5 volts.

By executing powerful instructions in a single clock cycle, the device achieves throughputs approaching 1 MIPS per MHz, balancing power consumption and processing speed.

Features:-

• High-performance, Low-power Atmel AVR 8-bit Microcontroller

• Advanced RISC Architecture

– 131 powerful instructions – most single clock cycle execution

– 32 × 8 General Purpose Working Registers + Peripheral Control Registers

– Fully Static Operation

– Up to 16MIPS Throughput at 16MHz

– On-chip 2-cycle Multiplier

• High Endurance Non-volatile Memory segments

– 32K bytes of in-system self-programmable flash program memory

– 1Kbytes EEPROM

– 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

• 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

– Programmable serial USART

– Master/Slave SPI Serial Interface

– Programmable Watchdog Timer with On-chip Oscillator

– On-chip Analog Comparator

– Byte Oriented 2-wire Serial Interface

– Interrupt and Wake-up on Pin Change

• Special Microcontroller Features

– Power-on Reset and Programmable Brown-out Detection

– Internal Calibrated RC 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

̶  32-lead TQFP, and 32-pad QFN/MLF

• Operating voltage

– -40C to 85C Industrial

• Speed Grades

– 0 to 8MHz at 2.7 to 5.5V (automotive temperature range: –40°C to +125°C)

– 0 to 16MHz at 4.5 to 5.5V (automotive temperature range: –40°C to +125°C)

• Low power consumption

̶  Active mode: 1.5mA at 3V – 4MHz

̶  Power-down mode: 1µA at 3V