功能

• ATmega32U4 8-Bit megaAVR Microcontroller
• The Atmel ATmega32U4 microcontroller is an 8-Bit megaAVR device based on the AVR enhanced RISC architecture.　The ATmega32U4 achieves throughput close to 1 MIPS/MHz while balancing power consumption and speed by executing a variety of instructions in a single clock cycle.　The ATmega32U4 has a USB 2.0 device module, making it ideal for applications that require a USB connection.　It also has a built-in JTAG interface for on-chip debugging.
• Microcontroller Functions Maximum Operating Frequency: 16 MHz Maximum 16 MIPS @ 16 MHz 32 KB Flash 1024 B EEPROM 2.5 KB SRAM 135 Instruction - Most Run on Single Clock Cycle General Purpose Register x 32 GPIO x 26 Power On Reset and Programmable Brownout Detection 8 MHz Calibrated Oscillator Built-in Clock Prescaler and On-The-Fly Clock Switching Function Internal/Internal Interrupt Source 6 Power Saving Sleep Modes Internal/External Interrupt Fully Static Operation On-Chip 2 Cycle Multiplier Communication Function USB 2.0 Full-Speed/Low-Speed Device Module JTAG (IEEE1149.1 Compliant) Interface Programmable Serial USART (Hardware Flow Control) Master/Slave SPI Serial Interface Byte Oriented 2 Wire Serial Interface Peripheral Function On-Chip PLL 10 bit A/D Converter (ADC) for USB and High Speed Timer -12 Channel 10 bit High Speed Timer/Counter (equipped with PLL (64 MHz) and Comparison Mode) x1 8 bit timer/counter (with independent prescaler and comparison mode) x1 2.5 bit timer/counter (Equipped with independent prescaler, comparison mode and capture mode) x2 8 bit PWM channels x4 PWM channels (configurable resolution: 2 → 135 bits) x4 PWM channels for high speed operation (configurable resolution: 2 → 32 bits) x6 output comparison modulator programmable watchdog timer (with independent on-chip oscillator) on-chip analog comparator interrupt/wake on-chip temperature sensor when changing pin