ATMEGA32U4-AU# ATMEL LQFP32 SMD 8 bit microcontroller integrated IC chip original high quality
   
   
  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
  – 16/32K Bytes of In-System Self-Programmable Flash (ATmega16U4/ATmega32U4)
  – 1.25/2.5K Bytes Internal SRAM (ATmega16U4/ATmega32U4)
  – 512Bytes/1K Bytes Internal EEPROM (ATmega16U4/ATmega32U4)
  – Write/Erase Cycles: 10,000 Flash/100,000 EEPROM
  – Data retention: 20 years at 85°C/ 100 years at 25°C(1)
  – Optional Boot Code Section with Independent Lock Bits In-System Programming by On-chip Boot Program 
     True Read-While-Write Operation .All supplied parts are preprogramed with a default USB bootloader
  – 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 Module with Interrupt on Transfer Completion
  – Complies fully with Universal Serial Bus Specification Rev 2.0
  – Supports data transfer rates up to 12 Mbit/s and 1.5 Mbit/s
  – 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 independent 832 bytes USB DPRAM for endpoint memory allocation
  – Suspend/Resume Interrupts
  – CPU Reset possible on USB Bus Reset detection
  – 48 MHz from PLL for Full-speed Bus Operation
  – USB Bus Connection/Disconnection on Microcontroller Request
  – Crystal-less operation for Low Speed mode