Описание
The ATmega32U2 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 ATmega8U32U2 achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed.
- High Performance, Low Power AVR® 8-Bit Microcontroller
- Advanced RISC Architecture
- 125 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
- Non-volatile Program and Data Memories
- 32K Bytes of In-System Self-Programmable Flash
- 1024 EEPROM
- 1024 Internal SRAM
- 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 with Independent Lock Bits In-System Programming by on-chip Boot Program hardware-activated after reset True Read-While-Write Operation
- Programming Lock for Software Security
- USB 2.0 Full-speed Device Module with Interrupt on Transfer Completion
- Complies fully with Universal Serial Bus Specification REV 2.0
- 48 MHz PLL for Full-speed Bus Operation : data transfer rates at 12 Mbit/s
- Fully independent 176 bytes USB DPRAM for endpoint memory allocation
- Endpoint 0 for Control Transfers: from 8 up to 64-bytes
- 4 Programmable Endpoints: IN or Out Directions Bulk, Interrupt and Isochronous Transfers Programmable maximum packet size from 8 to 64 bytes Programmable single or double buffer
- Suspend/Resume Interrupts
- Microcontroller reset on USB Bus Reset without detach
- USB Bus Disconnection on Microcontroller Request
- Peripheral Features
- One 8-bit Timer/Counters with Separate Prescaler and Compare Mode (two 8-bit PWM channels)
- One 16-bit Timer/Counter with Separate Prescaler, Compare and Capture Mode (three 8-bit PWM channels)
- USART with SPI master only mode and hardware flow control (RTS/CTS)
- Master/Slave SPI Serial Interface
- Programmable Watchdog Timer with Separate On-chip Oscillator
- On-chip Analog Comparator
- Interrupt and Wake-up on Pin Change
- On Chip Debug Interface (debug WIRE)
- Special Microcontroller Features
- Power-On Reset and Programmable Brown-out Detection
- Internal Calibrated Oscillator
- External and Internal Interrupt Sources
- Five Sleep Modes: Idle, Power-save, Power-down, Standby, and Extended Standby
- I/O and Packages
- 22 Programmable I/O Lines
- QFN32 (5x5mm) / TQFP32 packages
- 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
