Описание
The AT90USB82 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 AT90USB82 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
- 8K Bytes of In-System Self-Programmable Flash
- 512 Bytes EEPROM
- 512 Bytes Internal SRAM
- 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
- USB pad multiplexed with PS/2 peripheral for single cable capability
- Peripheral Features
- PS/2 compliant pad
- 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
