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ATMEGA32U4-AU Datasheet(PDF) 1 Page - ATMEL Corporation |
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ATMEGA32U4-AU Datasheet(HTML) 1 Page - ATMEL Corporation |
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1 / 26 page  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 • Peripheral Features – On-chip PLL for USB and High Speed Timer: 32 up to 96 MHz operation – One 8-bit Timer/Counter with Separate Prescaler and Compare Mode – Two 16-bit Timer/Counter with Separate Prescaler, Compare- and Capture Mode – One 10-bit High-Speed Timer/Counter with PLL (64 MHz) and Compare Mode – Four 8-bit PWM Channels – Four PWM Channels with Programmable Resolution from 2 to 16 Bits – Six PWM Channels for High Speed Operation, with Programmable Resolution from 2 to 11 Bits – Output Compare Modulator – 12-channels, 10-bit ADC (features Differential Channels with Programmable Gain) – Programmable Serial USART with Hardware Flow Control – Master/Slave SPI Serial Interface 8-bit Microcontroller with 16/32K Bytes of ISP Flash and USB Controller ATmega16U4 ATmega32U4 Preliminary Summary 7766FS–AVR–11/10 |
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