AT90USB646-MU

8 位 megaAVR 微控制器，带 USB 控制器，Atmel这些 megaAVR® 微控制器具有 USB 控制器，并且可以提供大量程序和数据内存，性能高达 20 MIPS。 所有 megaAVR 均提供自动编程功能，可实现快速、安全、经济实惠的在线升级。### AVR 微控制器，Atmel

Overview

The ATmega32U6/AT90USB64/128 is a low-power CMOS 8-bit microcontroller based on the AVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the  ATmega32U6/AT90USB64/128 achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed.

Features

• High Performance, Low Power AVR® 8-Bit Microcontroller

• Advanced RISC Architecture

   – 135 Powerful Instructions – Most Single Clock Cycle Execution

   – 32 x 8 General Purpose Working Registers

   – Fully Static Operation

   – Up to 16 MIPS Throughput at 16 MHz

   – On-Chip 2-cycle Multiplier

• Non-volatile Program and Data Memories

   – 32/64/128K Bytes of In-System Self-Programmable Flash

• Endurance: 100,000 Write/Erase Cycles

   – Optional Boot Code Section with Independent Lock Bits

• USB Bootloader programmed by default in the Factory

• In-System Programming by On-chip Boot Program hardware activated after reset

• True Read-While-Write Operation

• All supplied parts are preprogramed with a default USB bootloader

   – 1K/2K/4K 32K/64K/128K Flash version Bytes EEPROM

• Endurance: 100,000 Write/Erase Cycles

   – 2.5K/4K/8K 32K/64K/128K Flash version Bytes Internal SRAM

   – Up to 64K Bytes Optional External Memory Space

   – Programming Lock for Software Security

• JTAG IEEE std. 1149.1 compliant Interface

   – Boundary-scan Capabilities According to the JTAG Standard

   – Extensive On-chip Debug Support

   – Programming of Flash, EEPROM, Fuses, and Lock Bits through the JTAG Interface

• USB 2.0 Full-speed/Low-speed Device and On-The-Go Module

   – Complies fully with:

   – Universal Serial Bus Specification REV 2.0

   – On-The-Go Supplement to the USB 2.0 Specification Rev 1.0

   – Supports data transfer rates up to 12 Mbit/s and 1.5 Mbit/s

• USB Full-speed/Low Speed Device Module with Interrupt on Transfer Completion

   – Endpoint 0 for Control Transfers : up to 64-bytes

   – 6 Programmable Endpoints with IN or Out Directions and with Bulk, Interrupt or Isochronous Transfers

   – Configurable Endpoints size up to 256 bytes in double bank mode

   – Fully independant 832 bytes USB DPRAM for endpoint memory allocation

   – Suspend/Resume Interrupts

   – Power-on Reset and USB Bus Reset

   – 48 MHz PLL for Full-speed Bus Operation

   – USB Bus Disconnection on Microcontroller Request

• USB OTG Reduced Host :

   – Supports Host Negotiation Protocol HNP and Session Request Protocol SRP for OTG dual-role devices

   – Provide Status and control signals for software implementation of HNP and SRP

   – Provides programmable times required for HNP and SRP

• Peripheral Features

   – Two 8-bit Timer/Counters with Separate Prescaler and Compare Mode

   – Two16-bit Timer/Counter with Separate Prescaler, Compare- and Capture Mode

   – Real Time Counter with Separate Oscillator

   – Four 8-bit PWM Channels

   – Six PWM Channels with Programmable Resolution from 2 to 16 Bits

   – Output Compare Modulator

   – 8-channels, 10-bit ADC

   – Programmable Serial USART

   – Master/Slave SPI Serial Interface

   – Byte Oriented 2-wire Serial Interface

   – Programmable Watchdog Timer with Separate On-chip Oscillator

   – On-chip Analog Comparator

   – Interrupt and Wake-up on Pin Change

• Special Microcontroller Features

   – Power-on Reset and Programmable Brown-out Detection

   – Internal Calibrated Oscillator

   – External and Internal Interrupt Sources

   – Six Sleep Modes: Idle, ADC Noise Reduction, Power-save, Power-down, Standby, and Extended Standby

• I/O and Packages

   – 48 Programmable I/O Lines

   – 64-lead TQFP and 64-lead QFN

• Operating Voltages

   – 2.7 - 5.5V

• Operating temperature

   – Industrial -40°C to +85°C

• Maximum Frequency

   – 8 MHz at 2.7V - Industrial range

   – 16 MHz at 4.5V - Industrial range