{"product_id":"atmega644-20pu","title":"ATMEGA644-20PU","description":"\u003cp\u003eThe Microchip ATMEGA644-20PU is a high-performance 8-bit AVR microcontroller in a 40-pin DIP package. It delivers 64KB of flash memory and 4KB SRAM, running at up to 20MHz. With a supply range of 2.7V to 5.5V and an industrial temperature range, it is ideal for demanding embedded applications. Its rich peripheral set includes PWM, WDT, and brown-out detection, making it a versatile choice for control systems.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge memory footprint:\u003c\/strong\u003e 64KB flash and 4KB SRAM enable complex applications without external memory.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide voltage range:\u003c\/strong\u003e 2.7V to 5.5V operation simplifies power supply design.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial temperature grade:\u003c\/strong\u003e -40°C to 85°C ensures reliability in harsh environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThrough-hole package:\u003c\/strong\u003e 40-DIP is easy to solder and replace in prototyping and legacy designs.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eIndustrial Automation Controllers\u003c\/h3\u003e\u003cp\u003eThe 64KB flash and 4KB SRAM allow complex control algorithms for PLCs and motor control, while the 20MHz AVR core ensures fast response times.\u003c\/p\u003e\u003ch3\u003eEmbedded Data Logging Systems\u003c\/h3\u003e\u003cp\u003eWith 4KB SRAM and low-power sleep modes, it can buffer sensor data and write to external memory over SPI or I2C without frequent wake-ups.\u003c\/p\u003e\u003ch3\u003eAutomotive Aftermarket Modules\u003c\/h3\u003e\u003cp\u003eOperating from -40°C to 85°C and with a wide 2.7-5.5V supply, it suits automotive sensor interfaces and body control modules.\u003c\/p\u003e\u003ch3\u003eMedical Monitoring Devices\u003c\/h3\u003e\u003cp\u003eThe integrated WDT and brown-out reset ensure reliable operation in portable patient monitors, while the 40-DIP package simplifies prototyping.\u003c\/p\u003e\u003ch3\u003eSmart Grid Metering\u003c\/h3\u003e\u003cp\u003eIts PWM outputs and analog comparator enable precise current\/voltage sensing for energy metering, with enough flash for calibration tables.\u003c\/p\u003e\u003ch3\u003eRobotics Control Boards\u003c\/h3\u003e\u003cp\u003eMultiple timers and PWM channels drive servos and DC motors, while the 64KB flash stores complex motion profiles.\u003c\/p\u003e\u003ctable\u003e\n\u003ccolgroup\u003e\u003ccol\u003e\u003c\/colgroup\u003e \u003ctbody\u003e \u003ctr\u003e \t\u003ctd\u003eProduct attributes\u003c\/td\u003e \t\u003ctd\u003eProperty Value\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eManufacturer\u003c\/td\u003e \t\u003ctd\u003eMicrochip Technology\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eProduct Series\u003c\/td\u003e \t\u003ctd\u003eAVR® ATmega\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003ePackaging\u003c\/td\u003e \t\u003ctd\u003eTube | \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eCore Processor\u003c\/td\u003e \t\u003ctd\u003eAVR\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eCore Size\u003c\/td\u003e \t\u003ctd\u003e8-Bit\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eSpeed\u003c\/td\u003e \t\u003ctd\u003e20MHz\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eConnectivity\u003c\/td\u003e \t\u003ctd\u003eI2C, SPI, UART\/USART\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003ePeripherals\u003c\/td\u003e \t\u003ctd\u003eBrown-out Detect\/Reset, POR, PWM, WDT\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eNumber of I\/O\u003c\/td\u003e \t\u003ctd\u003e32\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eProgram Memory Size\u003c\/td\u003e \t\u003ctd\u003e64KB (32K x 16)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eProgram Memory Type\u003c\/td\u003e \t\u003ctd\u003eFLASH\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eEEPROM Size\u003c\/td\u003e \t\u003ctd\u003e2K x 8\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eRAM Size\u003c\/td\u003e \t\u003ctd\u003e4K x 8\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eVoltage - Supply (Vcc\/Vdd)\u003c\/td\u003e \t\u003ctd\u003e2.7V ~ 5.5V\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eData Converters\u003c\/td\u003e \t\u003ctd\u003eA\/D 8x10b\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eOscillator Type\u003c\/td\u003e \t\u003ctd\u003eInternal\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eOperating Temperature\u003c\/td\u003e \t\u003ctd\u003e-40°C ~ 85°C (TA)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eGrade\u003c\/td\u003e \t\u003ctd\u003e-\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eQualification AEC\u003c\/td\u003e \t\u003ctd\u003e-\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eMounting Type\u003c\/td\u003e \t\u003ctd\u003eThrough Hole\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eSupplier Device Package\u003c\/td\u003e \t\u003ctd\u003e40-PDIP\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003ePackage \/ Case\u003c\/td\u003e \t\u003ctd\u003e40-DIP (0.600\", 15.24mm)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e   \u003ctd\u003eROHS\u003c\/td\u003e   \u003ctd\u003e\u003cimg class=\"ROSHICON\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0910\/9756\/3425\/files\/ROHSICON.png?v=1757832376\"\u003e\u003c\/td\u003e  \u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cdl\u003e\n\u003cdt\u003eQ: What is the maximum operating frequency of the ATMEGA644-20PU?\u003c\/dt\u003e\n\u003cdd\u003eA: The ATMEGA644-20PU operates at up to 20MHz with a supply voltage range of 2.7V to 5.5V.\u003c\/dd\u003e\n\u003cdt\u003eQ: How much flash memory does this AVR MCU have?\u003c\/dt\u003e\n\u003cdd\u003eA: It features 64KB of in-system programmable flash memory (32K x 16 bits).\u003c\/dd\u003e\n\u003cdt\u003eQ: What package is the ATMEGA644-20PU available in?\u003c\/dt\u003e\n\u003cdd\u003eA: It comes in a 40-pin PDIP (0.600\" width) package, suitable for through-hole mounting.\u003c\/dd\u003e\n\u003cdt\u003eQ: Does it include analog comparators?\u003c\/dt\u003e\n\u003cdd\u003eA: Yes, it includes an analog comparator, along with PWM, WDT, POR, and brown-out detection.\u003c\/dd\u003e\n\u003c\/dl\u003e","brand":"Microchip Technology","offers":[{"title":"Default Title","offer_id":50883788472609,"sku":"ATMEGA644-20PU","price":8.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0910\/9756\/3425\/files\/IC_MCU_150_40P6_40_bb152b99-16e6-4438-98a7-3e66a684874f.jpg?v=1739247512","url":"https:\/\/hqickey.com\/products\/atmega644-20pu","provider":"HQICKEY","version":"1.0","type":"link"}