AVR ATmega Family ATmega324 Series Microcontrollers 8-bit Microcontrollers :

The ATmega164P-B/324P-B/644P-B 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 ATmega164P-B/324P-B/644P-B achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed.

• Up to 16MIPS throughput at 16MHz
• FLASH: Upto 64KB, EEPROM: Up to 2 KBSRAM: Up to 4KB
• Interfaces: SPI, USART
• 10-bit ADC
• Upto 32 General Purpose Input Output Pins
• 2x 8-Bit Timer/Counters , 1x 16-Bit Timer/Counter
• 6x PWM channels
• On-chip analog comparator
• Programmable Watchdog Timer with Separate On-chip Oscillator
• Applications: Power Regulators, Motor Control And Power Applications