AT90USB647-AU - 16MHz AVR USB Microcontroller | Microchip
部品番号: AT90USB647-AU ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $12.864 | $12.86 |
| 10 | $12.864 | $128.64 |
| 100 | $12.864 | $1,286.40 |
| 500 | $12.864 | $6,432.00 |
| 1,000 | $12.864 | $12,864.00 |
AT90USB647-AU 概要
A microcontroller is a programmable semiconductor that integrates a CPU core, memory, and peripherals into one device. The AT90USB647 belongs to the AVR 8-bit microcontroller family and is designed for embedded USB control, human-interface devices, data acquisition, and industrial peripheral applications. Its USB On-The-Go support can simplify device-to-device connectivity while reducing the need for separate USB interface hardware.
The verified product information identifies 64 KB of ISP flash memory with read-while-write capability, 2 KB of EEPROM, 4 KB of SRAM, and 48 general-purpose I/O lines. The 16 MHz operating frequency supports responsive control-loop and USB firmware execution, while the 3.3 V and 5 V supply description identifies compatibility with common embedded system rails. The part is available in a 64-pin TQFP package and tray packaging according to the supplied distributor data.
The AT90USB647-AU architecture is based on Microchip’s enhanced AVR RISC core and includes four flexible timer/counters with compare modes and PWM, USART, byte-oriented 2-wire serial interface, USB 2.0 low-speed/full-speed On-The-Go, and a real-time counter. These peripherals allow firmware to manage USB data, serial communications, timing events, motor or LED control, and sensor acquisition without requiring several discrete support devices.
Typical applications include USB keyboards and mice, HID-class human-interface equipment, USB-to-serial adapters, data loggers, embedded instrumentation, and USB-connected industrial control modules. The large memory footprint is useful for bootloader code, protocol stacks, configuration data, and application firmware, while the broad I/O count supports multiple external peripherals on a single board.
When designing around the AT90USB647-AU, confirm the USB connector, transceiver integration, power-supply sequencing, clock implementation, and decoupling requirements against the manufacturer datasheet. Use the specified 64-TQFP footprint and verify all 64 pin assignments before layout. USB signal routing and cable or connector behavior also require board-level validation.
This page combines the verified Microchip product description, distributor specifications, package data, source links, and application guidance to support engineering selection and sourcing of the AT90USB647-AU.
ドロップイン代替品: AT90USB647-AU — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: AT90USB647-AU （同一形状・フットプリント） — 相違点: Package, USB Version, Packaging, Product Type, Real-Time Counter.
クイック比較ツール — 並列比較する代替部品を選択:
AT90USB647-AUR
✅ ドロップイン✓ 在庫あり
価格はお問い合わせください
データシートを見る →AT90USB647-MU
✅ ドロップイン✓ 在庫あり
$8.9453 / 個
データシートを見る →AT90USB647-MUR
✅ ドロップイン📋 参考代替品（カタログ未掲載）
AT90USB647-16AU
✅ ドロップイン📋 参考代替品（カタログ未掲載）
AT90USB647-16AUR
✅ ドロップイン📋 参考代替品（カタログ未掲載）
AT90USB647-AU 最大定格＆電気的特性
| Core Architecture | AVR enhanced RISC |
| Processor Type | 8-bit microcontroller |
| 最大クロック周波数 | 16 MHz |
| Flash Memory | 64 KB |
| EEPROM Memory | 2 KB |
| SRAM | 4 KB |
| General-Purpose I/O Lines | 48 |
| General-Purpose Working Registers | 32 |
| USB Version | USB 2.0 low-speed and full-speed On-The-Go |
| USART | 1 |
| Two-Wire Serial Interface | Byte-oriented |
| Timer/Counter | 4 flexible timer/counters with compare modes and PWM |
| Real-Time Counter | 1 |
| 電源電圧 | 3.3 V to 5 V |
| 動作温度 | -40 °C to +85 °C |
| パッケージ | 64-TQFP, 14 x 14 mm |
| 実装タイプ | Surface mount |
| Packaging | Tray |
| Programmable Memory Type | ISP flash memory with read-while-write capability |
| RoHS ステータス | unknown |
| REACH Status | unknown |
AT90USB647-AU 64-tqfp, 14 x 14 mm ピン配置ガイド
AT90USB647-AU (64-tqfp, 14 x 14 mm パッケージ) のピン配置。 このデジタルICには、GPIO、通信インターフェース (UART、SPI、I2C)、および電源ピンが含まれています。代替ピン機能と設定オプションについては、メーカーのデータシートを参照してください。組み込みシステム設計とPCBレイアウトに不可欠です。
詳細なピン配置データはありません: AT90USB647-AU.
詳細は データシート をご参照ください。
主な用途
AT90USB647-AU の用途: 6 件s: USB Human-Interface Devices, USB Serial Adapters, USB Data Loggers, Industrial USB Instrumentation, USB Motor and LED Control, USB Connected Sensor Hubs.
USB Human-Interface Devices
The AT90USB647-AU fits USB HID products because the verified device combines USB 2.0 low-speed and full-speed On-The-Go connectivity with 64 KB of flash, 4 KB of SRAM, 2 KB of EEPROM, and 48 GPIO lines. Firmware can handle HID reports while timers, PWM, USART, and the 2-wire interface support buttons, indicators, sensors, and configuration devices. The 16 MHz AVR core provides the control bandwidth for a keyboard, mouse, control panel, or compact industrial interface. Before fabrication, validate USB routing, power, ESD protection, descriptors, and the complete 64-TQFP pinout against the Microchip datasheet.
おすすめ
USB Serial Adapters
AT90USB647-AU is suitable for a USB-to-serial adapter because it integrates USB On-The-Go functionality alongside USART, timers, GPIO, 64 KB flash, and 4 KB SRAM. The MCU can implement USB enumeration and data buffering in firmware while the USART connects to another embedded controller or peripheral. Its 48 I/O lines provide additional status, reset, and flow-control paths, while the two-wire interface can support configuration or sensor access. The design must still implement the USB connector, correct data rates, isolation or protection requirements, and tested driver or CDC-compatible firmware.
おすすめ
USB Data Loggers
The AT90USB647-AU can serve as the control and USB communications MCU in a compact data logger when the application needs local processing between USB transfers. Its 64 KB flash supports application firmware and configuration, 2 KB EEPROM can retain calibration or setup data, and 4 KB SRAM supports buffering. The 16 MHz clock and four timer/counters support periodic sampling, while USART and the byte-oriented 2-wire interface can connect to sensors or external storage. For long logging sessions, check memory endurance, write timing, data retention, and any external-storage requirements before finalizing the architecture.
おすすめ
Industrial USB Instrumentation
AT90USB647-AU is appropriate for industrial USB instrumentation when a product needs both local control and direct USB connectivity. The 48 GPIO lines can interface with sensors, relays, displays, status indicators, or actuator controls, while the USART and two-wire interface expand connectivity to other embedded modules. The verified -40 °C to +85 °C temperature information supports a broad commercial and industrial design range, although the supplied data does not state industrial certification. Product development should verify transient immunity, ESD requirements, grounding, USB shielding, and safety isolation rather than assuming that MCU temperature rating alone establishes system compliance.
おすすめ
USB Motor and LED Control
AT90USB647-AU can coordinate USB command reception with motor, LED, and timing functions because the verified device includes four flexible timer/counters with compare modes and PWM, 48 GPIO lines, and a 16 MHz AVR core. USB firmware can update setpoints or status while timer outputs drive indicators, gates, or motor-control signals. The device is useful where local timing and USB management are needed without a larger external processor. Validate PWM frequency resolution, timer channel availability, output current limits, transistor or MOSFET drive requirements, thermal conditions, and USB command latency before using it as the sole controller in a power stage.
おすすめ
USB Connected Sensor Hubs
AT90USB647-AU can act as the USB-facing controller for a small sensor hub that combines digital sensing, timing, and configuration storage. The 48 GPIO lines support digital sensors and control signals, the timers provide measurement and sampling intervals, and the USART or two-wire serial interface can connect to sensor devices. Its 2 KB EEPROM is useful for storing limited calibration constants, while 4 KB SRAM supports transient measurement buffering. The USB On-The-Go function simplifies host connectivity when the hub is plugged into a suitable USB port, but cable length, power budget, sensor accuracy, and data-rate requirements must be validated at the board level.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: AT90USB647-AU — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | AT90USB647-AUR | AT90USB647-MU | AT90USB647-MUR | AT90USB647-16AU | AT90USB647-16AUR |
|---|---|---|---|---|---|---|
| Package | 64-TQFP, 14 x 14 mm | 64-TQFP family variant | 64-TQFP family variant | 64-TQFP family variant | 64-TQFP family variant | 64-TQFP family variant |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | 8-bit AVR enhanced RISC | 8-bit AVR family variant | 8-bit AVR family variant | 8-bit AVR family variant | 8-bit AVR family variant | 8-bit AVR family variant |
| USB Connectivity | USB 2.0 low-speed and full-speed On-The-Go | AT90USB647 USB family variant | AT90USB647 family variant | AT90USB647 family variant | AT90USB647 family variant | AT90USB647 family variant |
主な差別化要因
- Integrated USB On-The-Go connectivity （vs AT90USB647-AUR)
- Large peripheral and GPIO integration （vs AT90USB647-MU)
- AVR RISC ecosystem and ISP programming （vs AT90USB647-MUR)
- Suitability for USB-connected embedded control （vs AT90USB647-16AU)
- Broad GPIO availability （vs AT90USB647-16AUR)
設計ノート
Begin the 64-TQFP layout with the official Microchip pinout and package drawing. Verify pin 1 orientation, power and ground distribution, USB-related pins, clock pins, programming pins, and every alternate-function GPIO connection before routing. The supplied distributor snippets identify the 64-TQFP package but do not provide the complete pin map, so do not derive a schematic symbol from memory or from a generic 64-pin library.
Treat the USB interface as a controlled-impedance board feature rather than an ordinary low-speed digital route. Follow the current Microchip hardware guidance for differential USB routing, series resistance, connector placement, return-path continuity, and protection. Keep switching or high-current paths away from USB traces and validate the completed board for enumeration, full-speed and low-speed operation as applicable.
Confirm the exact operating-voltage limits, USB supply requirements, clock requirements, and power-consumption values from the current manufacturer datasheet before selecting regulators and decoupling. The supplied data identifies 3.3 V and 5 V operation and a 16 MHz device, but does not provide complete current, dropout, or USB bus-power specifications. Use the datasheet values for capacitor sizing and regulator selection rather than estimating them.
Do not assume that AT90USB647-AU, AT90USB647-AUR, and other AT90USB647 ordering suffixes are interchangeable solely because they appear in the same family. Confirm package suffix, tray versus tape-and-reel format, pinout, USB device or host capability, voltage limits, temperature grade, and programmer compatibility in the Microchip ordering documentation. Also avoid treating an RoHS or REACH statement for another ordering code as proof for the exact target variant.
Use the AVR firmware and USB stack with conservative boot and brownout behavior, and validate the crystal or clock implementation against the manufacturer’s timing requirements. The 64-TQFP footprint provides many signal and power connections, so preserve short return paths and place decoupling and support components close to their associated pins. The supplied data does not identify a specific reference design or application note, so consult current Microchip documentation before final placement.
コンプライアンス情報
The supplied AT90USB647 product snippets do not state compliance for the exact AT90USB647-AU ordering variant. A related AT90USB647-AUR distributor result mentions EU RoHS and REACH compliance, but that evidence was not applied to AT90USB647-AU. Obtain current Microchip documentation and supplier declarations before making a compliance claim.
