ATMEGA32U2-AU MCU, ATMega AVR RISC, 32 KB, 16 MHz, TQFP-32

ATmega32U2 The ATmega32U2 is an AVR low-power CMOS 8-bit microcontroller based on enhanced RISC architecture. By executing instructions in a single clock cycle, the ATmega32U2 achieves throughputs of almost 1 MIPS per MHz. This allows system designers to optimise power consumption in comparison to processing speed.

Features - High-performance, low-power AVR 8-bit microcontroller - Advanced RISC architecture

- 125 instructions - usually in a single clock cycle

- 32 x 8 general purpose registers

- Up to 16 MIPS throughput at 16 MHz - Non-volatile program and data memory

- 32 K in-system Flash

- 1024-byte EEPROM

- 1024-byte 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 - USB 2.0 full-speed-device with interrupt

- Complies with USB specification rev. 2.0

- 48-MHz PLL for full-speed bus mode: Data transfer rates of 12 Mbit/s

- Completely independent 176-byte USB DPRAM for endpoint memory allocation

- Endpoint 0 for control transfers: from 8 to 64 bytes

- 4 programmable endpoints

- USB bus trip on microcontroller request - Peripheral functions

- One 8-bit timer/counter with separate prescaler and comparison mode (two 8-bit PWM channels)

- One 16-bit timer/counter with separate prescaler, comparison and capture mode (three 8-bit PWM channels)

- USART with SPI master mode and hardware flow control (RTS/CTS)

- Master/slave SPI serial interface

- Programmable watchdog timer with separate on-chip oscillator

- On-chip analogue comparator

- Alarm and wake-on-connection - On-chip debug interface (debugWIRE) - Special microcontroller characteristics

- Power-on-reset and programmable brown-out recognition

- Internal calibrated oscillator

- External and internal interrupt sources

- Five sleep modes: standby, power save, power-down, standby and extended standby - 22 programmable I/O lines - Operating voltages: 2.7 - 5.5 V - Operating temperature: industrial: -40°C to +85°C - Maximum frequency - 8 MHz at 2.7 V - 16 MHz at 4.5 V