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AT90USB646-MU
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AT90USB646-MU

Introduction

The AT90USB646-MU is a microcontroller belonging to the AT90USB family, which is designed for various embedded applications. This entry provides an overview of the product, including its category, use, characteristics, package, essence, packaging/quantity, specifications, detailed pin configuration, functional features, advantages and disadvantages, working principles, detailed application field plans, and alternative models.

Product Overview

  • Category: Microcontroller
  • Use: Embedded applications
  • Characteristics: High-performance, low-power 8-bit microcontroller
  • Package: QFN (Quad Flat No-leads)
  • Essence: USB controller with 64KB ISP flash memory, 4KB EEPROM, 4KB SRAM
  • Packaging/Quantity: Multiple packaging options available

Specifications

  • Flash Memory: 64KB
  • EEPROM: 4KB
  • SRAM: 4KB
  • Operating Voltage: 2.7V - 5.5V
  • Speed Grade: Up to 16 MIPS at 16 MHz
  • I/O Pins: 32
  • Communication Interfaces: USB 2.0, SPI, UART, I2C
  • Analog Inputs: 8-channel 10-bit ADC
  • Timers/Counters: 3 x 16-bit, 2 x 8-bit
  • Comparators: 2
  • Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

  • Pin 1: VCC
  • Pin 2: Port A, Bit 0 (PA0)
  • Pin 3: Port A, Bit 1 (PA1)
  • ...
  • Pin 64: GND

Functional Features

  • USB Controller
  • In-System Programmable Flash
  • Endurance: 10,000 Write/Erase Cycles
  • Power-On Reset
  • Brown-Out Detection
  • JTAG Interface
  • DebugWIRE on-chip Debug System
  • Watchdog Timer
  • Multiple Sleep Modes

Advantages and Disadvantages

Advantages

  • High-speed USB controller
  • Low-power consumption
  • In-system programmable flash memory
  • Wide operating voltage range
  • Rich communication interfaces

Disadvantages

  • Limited analog input channels
  • Relatively small SRAM size

Working Principles

The AT90USB646-MU operates by executing instructions stored in its flash memory. It communicates with external devices through its various communication interfaces, enabling it to control and monitor a wide range of embedded applications. The microcontroller's low-power modes help conserve energy in battery-operated systems.

Detailed Application Field Plans

The AT90USB646-MU is suitable for applications such as: - USB-based data acquisition systems - Human interface devices - Industrial control systems - Home automation - Consumer electronics

Detailed and Complete Alternative Models

  • AT90USB1286-MU: Higher memory and I/O capabilities
  • ATmega32U4: Lower-cost alternative with similar USB functionality
  • AT89S52: Basic 8-bit microcontroller for simpler applications

In conclusion, the AT90USB646-MU is a versatile microcontroller suitable for a wide range of embedded applications, offering high performance and USB connectivity. Its specifications, functional features, and application field plans make it a compelling choice for developers seeking a reliable and efficient microcontroller solution.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací AT90USB646-MU v technických řešeních

  1. What is the AT90USB646-MU microcontroller used for?

    • The AT90USB646-MU microcontroller is commonly used in USB applications, such as USB peripherals, USB-to-serial converters, and other USB-based devices.

  2. What are the key features of the AT90USB646-MU?

    • The AT90USB646-MU features 64KB of flash memory, 4KB of SRAM, 2KB of EEPROM, USB 2.0 full-speed device interface, and various communication interfaces like UART, SPI, and I2C.

  3. How can I program the AT90USB646-MU microcontroller?

    • The AT90USB646-MU can be programmed using standard in-circuit programming tools such as Atmel's AVRISP mkII or other compatible programmers.

  4. Can the AT90USB646-MU be used in low-power applications?

    • Yes, the AT90USB646-MU offers low-power consumption modes, making it suitable for battery-powered or energy-efficient designs.

  5. What development tools are available for working with the AT90USB646-MU?

    • Atmel Studio, AVR-GCC, and other popular IDEs and compilers support the AT90USB646-MU, along with various development boards and evaluation kits.

  6. Does the AT90USB646-MU support USB host functionality?

    • No, the AT90USB646-MU is designed as a USB device controller and does not support USB host functionality.

  7. Are there any known issues or errata with the AT90USB646-MU?

    • It's important to check the latest datasheet and errata documents from Microchip (formerly Atmel) for any known issues or limitations with the AT90USB646-MU.

  8. What kind of peripherals can be interfaced with the AT90USB646-MU?

    • The AT90USB646-MU supports a wide range of peripherals including sensors, displays, motors, and various communication devices through its GPIO, ADC, PWM, and communication interfaces.

  9. Is the AT90USB646-MU suitable for industrial applications?

    • Yes, the AT90USB646-MU is often used in industrial control systems, automation, and other industrial applications due to its robust features and reliability.

  10. Where can I find technical support and documentation for the AT90USB646-MU?

    • Technical support, datasheets, application notes, and other documentation for the AT90USB646-MU can be found on the official Microchip (formerly Atmel) website and community forums.