ATMEGA1281-16MU

The ATMEGA1281-16MU is a high-performance, low-power 8-bit AVR RISC-based Microcontroller combines 128kB ISP flash memory, 8kB SRAM, 4kB EEPROM, 54 general purpose I/O lines, 32 general purpose working registers, real time counter, six flexible timers/counters with compare modes, PWM, 4 USARTs, byte oriented 2-wire serial interface, 16-channel 10-bit A/D converter and a JTAG interface for on-chip debugging. The device achieves a throughput of 8MIPS at 16MHz and operates between 2.7 to 5.5V. By executing powerful instructions in a single clock cycle, the device achieves a throughput approaching 1MIPS per MHz, balancing power consumption and processing speed. The device is manufactured using the high-density non-volatile memory technology. The on-chip ISP flash allows the program memory to be reprogrammed in-system through an SPI serial interface, by a conventional non-volatile memory programmer, or by an on-chip boot program running on the AVR core.

• Advanced RISC architecture
• Power-on reset and programmable brown-out detection
• Internal calibrated RC oscillator
• External and internal interrupt sources
• Six sleep modes - idle, ADC noise reduction, power-save, power-down, standby and extended standby
• JTAG (IEEE® std. 1149.1 compliant) Interface
• QTouch® library support
• 135 powerful instructions most single clock cycle execution
• 32 x 8 general purpose working registers
• Up to 16MIPS throughput at 16MHz
• On-chip 2-cycle multiplier
• Real-time counter with separate oscillator
• Output compare modulator
• Serial peripheral interface (SPI)
• Byte oriented 2-wire serial interface
• Programmable watchdog timer with separate on-chip oscillator
• On-chip analogue comparator
• Interrupt and wake-up on pin change