Microchip Technology AT90USB646-MU
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $7.30 | $7.30 |
| 15+ | $7.07 | $106.05 |
| 25+ | $6.91 | $172.75 |
| 50+ | $6.53 | $326.50 |
| 100+ | $5.76 | $576.00 |
| N+ | $1.15 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | AVR® 90USB |
| Packaging | Tray | Tray |
| Core Processor | AVR |
| Core Size | 8-Bit |
| Speed | 16MHz |
| Connectivity | EBI/EMI, I2C, SPI, UART/USART, USB |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Number of I/O | 48 |
| Program Memory Size | 64KB (64K x 8) |
| 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 |
| ROHS |  |
The AT90USB646-MU is an 8-bit AVR microcontroller from Microchip Technology, featuring a full-speed USB 2.0 interface. It provides 64KB of Flash memory and 4KB of SRAM, running at up to 16MHz. The device includes Brown-out Detect/Reset, POR, PWM, and WDT for robust operation. Packaged in a 64-VFQFN with exposed pad, it operates from 2.7V to 5.5V and is suited for USB-enabled embedded applications.
- Integrated USB 2.0: Eliminates external USB controller chips, reducing BOM cost and board space.
- High Memory Capacity: 64KB Flash and 4KB RAM support complex firmware and data buffering.
- Flexible Voltage Operation: 2.7V to 5.5V range accommodates both 3.3V and 5V logic systems.
- Enhanced Thermal Performance: Exposed pad package improves heat dissipation for reliable operation.
USB Peripheral Devices
Built-in USB 2.0 interface enables direct connection to PCs for keyboards, mice, and game controllers.
Data Acquisition Systems
With 4KB RAM and 16MHz speed, it can buffer and stream sensor data over USB to host software.
Portable Instrumentation
Low power consumption and 2.7V-5.5V range support battery-operated multimeters and data loggers.
Human Interface Devices
Its rich I/O and USB support make it ideal for custom HID devices like barcode scanners and touchpads.
Industrial Control Panels
The exposed pad package aids thermal dissipation in enclosed control units operating at high ambient temperatures.
Firmware Update Hubs
USB bootloader support allows in-field firmware updates without specialized programmers.
- Q: What is the core architecture of the AT90USB646-MU?
- A: It is based on the AVR enhanced RISC architecture.
- Q: What is the maximum operating frequency?
- A: It operates at up to 16MHz.
- Q: How much Flash memory is available?
- A: It has 64KB of Flash program memory.
- Q: What is the package type?
- A: It comes in a 64-VFQFN exposed pad package.
- Q: Does it support USB connectivity?
- A: Yes, it features an integrated USB 2.0 controller.
AT90USB646-MU.pdf
- Q: What is the core architecture of the AT90USB646-MU?
- A: It is based on the AVR enhanced RISC architecture.
- Q: What is the maximum operating frequency?
- A: It operates at up to 16MHz.
- Q: How much Flash memory is available?
- A: It has 64KB of Flash program memory.
- Q: What is the package type?
- A: It comes in a 64-VFQFN exposed pad package.
- Q: Does it support USB connectivity?
- A: Yes, it features an integrated USB 2.0 controller.
