AT90USB1287-AU

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AT90USB1287-AU

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IC MCU 8BIT 128KB FLASH 64TQFP

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Spezifikationen

Attribut Wert
Package Tray
Series AVR® 90USB
ProductStatus Active
CoreProcessor AVR
CoreSize 8-Bit
Speed 16MHz
Connectivity EBI/EMI, I²C, SPI, UART/USART, USB OTG
Peripherals Brown-out Detect/Reset, POR, PWM, WDT
NumberofI/O 48
ProgramMemorySize 128KB (128K x 8)
ProgramMemoryType FLASH
EEPROMSize 4K x 8
RAMSize 8K x 8
Voltage-Supply(Vcc/Vdd) 2.7V ~ 5.5V
DataConverters A/D 8x10b
OscillatorType Internal
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case 64-TQFP

Übersicht

Equivalent

The AT90USB1287-AU is an 8-bit AVR microcontroller with USB functionality. Equivalent or similar products include:
- ATmega16U4/ATmega32U4 (smaller flash but similar USB features)
- AT90USB646/AT90USB1286 (same family, slightly different specs)
- ATmega128U4 (similar but with more flash)
- PIC18F4550 (Microchip alternative with USB)
- STM32F103 (ARM-based, more powerful but different architecture)
Check pin compatibility and feature requirements when substituting.

Features

The AT90USB1287-AU is an 8-bit AVR microcontroller with USB 2.0 support. Key features:
- CPU: 8-bit AVR, up to 16 MIPS at 16 MHz
- Flash: 128 KB
- SRAM: 8 KB
- EEPROM: 4 KB
- USB 2.0 Full-Speed (12 Mbps) with embedded PHY
- I/O Pins: 48
- Timers: Four 8-bit, two 16-bit
- ADC: 8-channel, 10-bit
- Communication: USART, SPI, I²C
- Operating Voltage: 2.7V–5.5V
- Packaging: 64-pin TQFP
Ideal for USB-enabled embedded applications.

Pinout

The AT90USB1287-AU is a 64-pin microcontroller from Microchip (formerly Atmel) with USB 2.0 support. Key features include:
- 64-pin TQFP package
- 16MHz 8-bit AVR core with 128KB Flash, 8KB SRAM, and 4KB EEPROM
- USB 2.0 Full-Speed (12Mbps) with embedded transceiver
- 48 programmable I/O pins (multiplexed with peripherals)
- Peripherals:
- 4x UART, SPI, I²C
- 8x 10-bit ADC channels
- 4x PWM channels
- JTAG & debugWIRE for programming
Commonly used in USB-enabled embedded systems like keyboards and HID devices.

Application

The AT90USB1287-AU is a versatile microcontroller used in:
1. USB Devices: HID (keyboards, mice), mass storage, and communication interfaces.
2. Embedded Systems: Industrial control, automation, and IoT applications.
3. Consumer Electronics: Gaming peripherals, smart home devices.
4. Medical Devices: Portable diagnostic tools and monitoring systems.
5. Automotive: Infotainment and auxiliary control modules.
Its USB 2.0 support, 128KB flash, and 8-bit AVR architecture make it ideal for cost-sensitive, connectivity-driven designs.

Package

The AT90USB1287-AU is packaged in a 64-pin TQFP (Thin Quad Flat Package). This surface-mount package has a compact form factor with leads on all four sides, suitable for high-density PCB designs. The "AU" suffix indicates the lead-free (RoHS-compliant) version. Dimensions are typically 10x10mm with a 0.5mm lead pitch. Ideal for USB applications requiring robust integration.

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