ATMEGA1284P-PU DIP-40 20MHz Microcontroller

High performance Microchip 8-bit AVR® RISC based microcontroller, 128 KB ISP flash memory, read-write capabilities, 4 KB EEPROM, Combines with 16 KB SRAM, 32 general-purpose I/O lines, 32 general-purpose operating registers, one real-time counter, three flexible timers/counters with comparison modes and PWM, two USARTs, one byte-oriented Two-Wire serial interface with programmable gain 8-channel 10-bit A/D converter with optional differential input stage, programmable watchdog timer with internal oscillator, SPI serial port, a JTAG (IEEE® 1149.1 compliant) test interface for on-chip debugging and programming, and six software-selectable power-saving modes . The device operates between 1.8-5.5 volts. Executing powerful instructions in a single clock cycle, the device achieves throughput approaching one MIPS per MHz by balancing power consumption and processing speed.