Microchip ATmega3208系列MCU物联网(IoT)解决方案

Microchip公司的ATmega3208/3209/4808/4809是采用AVR®处理器的megaAVR® 0系列MCU,具有工作高达20MHz的硬件乘法器,以及高达48KB闪存储器,6KB SRAM和256B EEPROM,采用最新的技术和灵活的低功率架构,包括事件系统和SleepWalking,精密模拟特性和先进的外设,采用28,32或48引脚封装,主要用在工业,医疗,家庭自动化和物联网(IoT)应用.本文介绍了ATmega3208/3209/4808/4809主要特性, 框图以及开发板AVR-IoT WG主要特性,电路图PCB设计图和材料清单.

The ATmega3208/3209/4808/4809 microcontrollers of the megaAVR® 0-series are using the AVR®processor with hardware multiplier, running at up to 20 MHz, with a wide range of Flash sizes up to 48 KB, up to 6 KB of SRAM, and 256 bytes of EEPROM in 28-, 32-, or 48-pin package. The series uses the latest technologies from Microchip with a flexible and low-power architecture including Event System and SleepWalking, accurate analog features and advanced peripherals.

The devices described here offer Flash sizes from 32 KB to 48 KB in a 32-pin package.

ATmega3208/3209/4808/4809主要特性:

• AVR® CPU

– Single-cycle I/O access

– Two-level interrupt controller

– Two-cycle hardware multiplier

• Memories

– Up to 48 KB In-system self-programmable Flash memory

– 256B EEPROM

– Up to 6 KB SRAM

– Write/Erase endurance:

• Flash 10,000 cycles

• EEPROM 100,000 cycles

– Data retention: 20 Years at 85°C

• System

– Power-on Reset (POR) circuit

– Brown-out Detection (BOD)

– Clock options:

• 20 MHz low power internal oscillator with fuse-protected frequency setting

• 32.768 kHz Ultra Low Power (ULP) internal oscillator

• 32.768 kHz external crystal oscillator

• External clock input

– Single pin Unified Program Debug Interface (UPDI)

– Three sleep modes:

• Id...