ATMEGA32U4RC

Part: ATmega16U4/ATmega32U4 from Atmel

Type: 8-bit Microcontroller with ISP Flash and USB Controller

Key Specs:

• Throughput: Up to 16 MIPS at 16MHz
• Flash Memory: 16/32KB In-System Self-Programmable
• SRAM: 1.25/2.5KB Internal
• EEPROM: 512Bytes/1KB Internal
• Operating Voltage: 2.7V to 5.5V
• Maximum Frequency: 16MHz at 4.5V
• Operating Temperature: -40°C to +85°C (Industrial)
• USB Data Rates: Up to 12Mbit/s (Full-speed), 1.5Mbit/s (Low Speed)
• Programmable I/O Lines: 26

Features:

• High Performance, Low Power AVR® 8-Bit Microcontroller
• Advanced RISC Architecture with 135 Powerful Instructions and 32 x 8 General Purpose Working Registers
• Non-volatile Program and Data Memories with In-System Self-Programmable Flash, Internal SRAM, Internal EEPROM, and True Read-While-Write Operation
• Programming Lock for Software Security
• JTAG (IEEE® std. 1149.1 compliant) Interface with Boundary-scan Capabilities and On-chip Debug Support
• USB 2.0 Full-speed/Low Speed Device Module with Interrupt on Transfer Completion, Six Programmable Endpoints, and Crystal-less operation for Low Speed mode
• On-chip PLL for USB and High Speed Timer (32 up to 96MHz 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 (64MHz) 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
• 12-channels, 10-bit ADC with Differential Channels and Programmable Gain
• Programmable Serial USART with Hardware Flow Control
• Master/Slave SPI Serial Interface
• Byte Oriented 2-wire Serial Interface
• Programmable Watchdog Timer with Separate On-chip Oscillator
• On-chip Analog Comparator
• On-chip Temperature Sensor
• Power-on Reset and Programmable Brown-out Detection
• Internal 8MHz Calibrated Oscillator
• Six Sleep Modes: Idle, ADC Noise Reduction, Power-save, Power-down, Standby, and Extended Standby

Applications:

• null

Package:

• 44-lead TQFP Package: 10x10mm
• 44-lead QFN Package: 7x7mm

• 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 16MHz
  • On-Chip 2-cycle Multiplier
• Non-volatile Program and Data Memories
  • 16/32KB of In-System Self-Programmable Flash
  • 1.25/2.5KB Internal SRAM
  • 512Bytes/1KB Internal EEPROM
  • Write/Erase Cycles: 10,000 Flash/100,000 EEPROM
  • Data retention: 20 years at 85C/ 100 years at 25C(1)
  • Optional Boot Code Section with Independent Lock Bits
    • In-System Programming by On-chip Boot Program
    • True Read-While-Write Operation

Parts using external XTAL clock are pre-programed 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 12Mbit/s and 1.5Mbit/s
  • Endpoint 0 for Control Transfers: up to 64-bytes
  • Six 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
  • 48MHz 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 96MHz 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 (64MHz) 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
• 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
• On-chip Temperature Sensor
• Special Microcontroller Features
  • Power-on Reset and Programmable Brown-out Detection
  • Internal 8MHz Calibrated Oscillator
  • Internal clock prescaler and On-the-fly Clock Switching (Int RC / Ext Osc)
  • External and Internal Interrupt Sources
  • Six Sleep Modes: Idle, ADC Noise Reduction, Power-save, Power-down, Standby, and Extended Standby
• I/O and Packages
  • All I/O combine CMOS outputs and LVTTL inputs
  • 26 Programmable I/O Lines
  • 44-lead TQFP Package, 10x10mm
  • 44-lead QFN Package, 7x7mm
• Operating Voltages
  • 2.7 5.5V
• Operating temperature
  • Industrial (-40°C to +85°C)
• Maximum Frequency
  • 8MHz at 2.7V Industrial range
  • 16MHz at 4.5V Industrial range
• Note: 1. See "Data Retention" on page 8 for details.