ATMEGA48-20MU

The ATMEGA48-20MU is a high-performance, low-power 8bit 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 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. 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 analogue comparator
• Interrupt and wake-up on pin change
• Two 8bit 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
• Serial peripheral interface (SPI)
• Byte-oriented 2-wire serial interface (Philips I²C compatible)