ATMEGA1284P-PU

The ATMEGA1284P-PU is a low power CMOS 8 bit microcontroller based on the AVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the ATMEGA1284P-PU achieves throughputs approaching 1MIPS per MHz allowing the system designer to optimise power consumption versus processing speed.

• 131 powerful Instructions
• 32 × 8 general purpose working registers
• Fully static operation
• Up to 20MIPS throughput at 20MHz
• On chip 2 cycle multiplier
• 128KBytes of in system self programmable flash program memory
• 4KBytes EEPROM
• 16KBytes internal SRAM
• Data retention: 20 years at 85°C/100 years at 25°C
• Optional boot code section with independent lock bits
• In system programming by on chip boot program
• True read-while-write operation
• Programming lock for software security
• QTouch and QMatrix acquisition
• Up to 64 sense channels
• Boundary scan capabilities according to the JTAG standard
• Extensive on-chip debug support
• Programming of flash, EEPROM, fuses, and lock bits through the JTAG interface
• Two 8 bit timer/counters with separate prescalers and compare modes
• Real time counter with separate oscillator
• Six PWM Channels
• 8 channel, 10 bit ADC
• Differential mode with selectable gain at 1×, 10× or 200×
• Byte oriented, two wire serial interface
• Two programmable serial USART

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