AT90USB646-MU Datasheet PDF - 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