ATMEGA1281V-8MU Datasheet PDF - Microchip

●The ATMEGA1281V-8MU 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 Atmel high-density nonvolatile 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

● Master/Slave SPI serial interface

● Byte oriented 2-wire serial interface

● Programmable watchdog timer with separate on-chip oscillator

● On-chip analog comparator

● Interrupt and wake-up on pin change