Microchip Technology ATMEGA645-16MI

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Product attributes Property Value
Manufacturer Microchip Technology
Product Series AVR® ATmega
Packaging | Tray
Core Processor AVR
Core Size 8-Bit
Speed 16MHz
Connectivity SPI, UART/USART, USI
Peripherals Brown-out Detect/Reset, POR, PWM, WDT
Number of I/O 53
Program Memory Size 64KB (32K x 16)
Program Memory Type FLASH
EEPROM Size 2K x 8
RAM Size 4K x 8
Voltage - Supply (Vcc/Vdd) 2.7V ~ 5.5V
Data Converters A/D 8x10b
Oscillator Type Internal
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification -
Mounting Type Surface Mount
Supplier Device Package 64-QFN (9x9)
Package / Case 64-VFQFN Exposed Pad

Product Overview

The ATMEGA645-16MI is a high-performance 8-bit AVR RISC-based microcontroller from Microchip Technology. This powerful MCU combines 64KB of in-system programmable Flash memory with read-while-write capabilities, making it ideal for embedded applications requiring robust processing power and flexible programming options.

Key Features & Benefits

  • High Performance: 16MHz operating frequency delivers fast execution speeds for demanding applications
  • Generous Memory: 64KB Flash program memory, 4KB SRAM, and 2KB EEPROM provide ample storage for complex programs
  • Extensive I/O: 53 programmable I/O lines offer maximum flexibility for interfacing with peripherals
  • Multiple Connectivity Options: Built-in SPI, UART/USART, and USI interfaces simplify communication with other devices
  • Advanced Peripherals: Integrated PWM, WDT, brown-out detection, and power-on reset enhance system reliability
  • Wide Operating Range: 2.7V to 5.5V supply voltage and -40°C to 85°C temperature range ensure versatility across diverse environments
  • Compact Package: 64-QFN (9x9mm) surface mount package saves valuable board space in compact designs

Applications

The ATMEGA645-16MI is perfect for industrial control systems, automotive electronics, consumer appliances, IoT devices, robotics, and embedded systems requiring reliable 8-bit processing with extensive I/O capabilities.

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