■ 제품필수정보

제조사	Microchip
제조사품명	ATMEGA644-20AU
간략설명	Microchip ATMEGA644-20AU, 8bit AVR Microcontroller, ATmega, 20MHz, 64 kB Flash, 44-Pin TQFP

■ 제품사양

패밀리명 = ATmega
패키지 = TQFP
장착형태 = Surface Mount
핀수 = 44
코어 = AVR
데이터 버스 = 8bit
프로그램 메모리 크기 = 64 kB
최대 주파수 = 20MHz
RAM 크기 = 4 kB
PWM 단위 수 = 1 Number of SPI Channels = 1 Number of USART Channels = 1
최소 작동 온도 = -40 °C Microchip Technology MicrocontrollerThe Microchip Technology ATMEGA family type, TQFP package, surface mount, 44-pin CMOS-processor 8-bit microcontroller. It has a maximum voltage rating of 5.5V. The microcontroller operates at a maximum speed of 20MHz and features 64kb ISP flash program memory, 4kb of internal SRAM and 2kb of EEPROM. It has a real-time counter, PWM, 8-channel 10-bit A/D converter and a watchdog timer (WDT). By executing powerful instructions in a single clock cycle, it achieves throughputs approaching 1MIPS per MHz allowing the system to optimize power consumption versus processing speed.Features and Benefits??131 powerful instructions - Most single-clock cycle execution ??32 x 8 general-purpose working registers ??32 programmable I/O lines ??External and internal interrupt sources ??Fully static operation ??On-chip 2-cycle multiplier ??Operating temperature ranges between -40°C and 85°C ??Power-on reset and programmable brown-out detection ??Six PWM channels ??Six sleep modes- Idle, ADC noise reduction, power-save, power-down, standby and extended standby ??Three USART with fractional baud rate generator, auto baud, and start-of-frame detection ??Write/Erase cycles- 10,000 flash/100,000 EEPROMApplications??Embedded systems ??LCD monitors and TVs ??Mobile PC docking ??PC motherboards ??Portable hub boxes ??Printers and scanners