●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
