The ATMEGA48-20MU is a high-performance, low-power 8-bit AVR RISC-based Microcontroller combines 4kB ISP flash memory, 512byte SRAM, 256byte EEPROM, an 8-channel/10-bit A/D converter (TQFP and QFN/MLF) and debugWIRE for on-chip debugging. The device supports a throughput of 20MIPS at 20MHz and 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 Atmel"s 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 nonvolatile memory programmer, or by an on-chip boot program running on the AVR core. The boot program can use any interface to download the application program in the application flash memory.
● Advanced RISC architecture
● Power-on reset and programmable brown-out detection
● Internal calibrated RC oscillator
● External and internal interrupt sources
● Five sleep modes - Idle, ADC noise reduction, power-save, power-down, standby and extended standby
● 131 Powerful instructions-most single clock cycle execution
● 32 x 8 General purpose working registers
● Fully static operation
● Up to 20MIPS throughput at 20MHz
● On-chip 2-cycle multiplier
● QTouch® library support
● Programmable watchdog timer with separate on-chip oscillator
● On-chip analog comparator
● Interrupt and wake-up on pin change
● Two 8-bit timers/counters with separate prescalers and compare modes
● One 16-bit timer/counter with separate prescaler, compare mode and capture mode
● Real-time counter with separate oscillator
● Six PWM channels
● Programmable serial USART
● Master/Slave SPI serial interface
