Microchip (ATMEGA48P-20PU) 8 Bit MCU, Low Power High Performance, 20 MHz

8 Bit MCU, Low Power High Performance, AVR ATmega Family ATmega48 Series Microcontrollers, 20 MHz Product Overview The ATMEGA48P-20PU is a high-performance picoPower 8-bit AVR RISC-based Microcontroller combines 4kB ISP flash memory with read-while-write capabilities, 256byte EEPROM, 512byte SRAM, 23 general purpose I/O lines, 32 general purpose working registers, three flexible timers/counters with compare modes, internal and external interrupts, serial programmable USART, a byte-oriented 2-wire serial interface, SPI serial port, 6-channel 10-bit A/D converter, programmable watchdog timer with internal oscillator and five 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 Atmel's 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. 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 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 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 Serial peripheral interface (SPI) Product Information Product Range: AVR ATmega Family ATmega48 Series Microcontrollers CPU Speed: 20MHz Program Memory Size: 4KB Operating Frequency Max: 20MHz RAM Memory Size: 512Byte No. of Pins: 28Pins MCU Case Style: DIP IC Case / Package: DIP No. of I/O's: 23I/O's Embedded Interface Type: I2C, SPI, UART Interfaces: I2C, SPI, UART Supply Voltage Min: 2.7V Supply Voltage Max: 5.5V MCU Family: AVR ATmega MCU Series: ATmega48 Operating Temperature Min: -40°C Operating Temperature Max: 85°C IC Mounting: Through Hole