ATMEGA32U2
Key Features
- 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/16K/32K Bytes of In-System Self-Programmable Flash - 512/512/1024 EEPROM - 512/512/1024 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 Section 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 independant 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 IsochronousTransfers 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 (debugWIRE)
- Special Microcontroller Features - Power-On Res
