The ATMEGA128A-MU is a high-performance, low-power 8-bit AVR RISC-based Microcontroller combines 128kB flash memory with read-while-write capabilities, 4kB EEPROM, 4kB SRAM, 53 general purpose I/O lines, 32 general purpose working registers, real time counter, four flexible timers/counters with compare modes and PWM, two USARTs, a byte oriented Two-wire serial interface, a 8-channel/10-bit A/D converter with optional differential input stage with programmable gain, programmable watchdog timer with internal oscillator, SPI serial port, a JTAG (IEEE 1149.1 compliant) test interface for accessing the on-chip debugging and programming and six software selectable power saving modes. The device operates between 2.7 to 5.5V. By executing powerful instructions in a single clock cycle, the device achieves throughputs approaching 1MIPS per MHz, balancing power consumption and processing speed. The device is manufactured using the Atmel high-density nonvolatile memory technology.
● 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
● Software selectable clock frequency
● ATmega103 compatibility mode selected by a fuse
● Global pull-up disable
● 133 Powerful instructions most single-clock cycle execution
● 32 x 8 General purpose working registers + Peripheral control registers
● Fully static operation
● Up to 16MIPS throughput at 16MHz
● On-chip 2-cycle multiplier
● QTouch® library support
