{"product_id":"atmega329p-20au","title":"ATMEGA329P-20AU","description":"\u003cp\u003eThe ATMEGA329P-20AU from Microchip Technology is a high-performance 8-bit AVR microcontroller featuring an integrated LCD controller, ideal for applications requiring a direct display interface. Operating at up to 20 MHz with a supply voltage range of 2.7V to 5.5V, it delivers efficient processing for a wide range of embedded systems. The device includes 32KB of flash memory, 2KB of SRAM, and a rich set of peripherals such as PWM, brown-out detection, and watchdog timer. Housed in a compact 64-TQFP package, it is designed for industrial and consumer applications where reliability and low power consumption are critical.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated LCD Controller:\u003c\/strong\u003e Directly drives segmented LCDs without external drivers, saving board space and BOM cost.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Voltage Range (2.7V-5.5V):\u003c\/strong\u003e Flexible power supply options, supporting both 3.3V and 5V systems, simplifying design.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Speed (20MHz):\u003c\/strong\u003e Fast AVR core enables real-time processing for control loops and user interfaces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobust Protection:\u003c\/strong\u003e Brown-out detection and watchdog timer enhance system reliability in harsh environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Power Modes:\u003c\/strong\u003e Multiple sleep modes extend battery life in portable applications.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eIndustrial Control Panels\u003c\/h3\u003e\u003cp\u003eWith its integrated LCD driver and 20 MHz AVR core, the ATMEGA329P-20AU can directly drive alphanumeric displays in industrial HMI panels, reducing external component count and simplifying PCB layout.\u003c\/p\u003e\u003ch3\u003ePortable Medical Devices\u003c\/h3\u003e\u003cp\u003eThe low-voltage operation (2.7V-5.5V) and low-power sleep modes make it suitable for battery-powered glucose meters or pulse oximeters, where the LCD interface provides clear readouts.\u003c\/p\u003e\u003ch3\u003eSmart Energy Meters\u003c\/h3\u003e\u003cp\u003eIts robust brown-out detection and watchdog timer ensure reliable operation in utility meters, while the 32KB flash can store calibration data and communication protocols.\u003c\/p\u003e\u003ch3\u003eAutomotive Aftermarket Displays\u003c\/h3\u003e\u003cp\u003eThe wide temperature range (-40°C to 85°C) and PWM outputs allow for driving backlight LEDs and displaying vehicle diagnostics on a custom LCD cluster.\u003c\/p\u003e\u003ch3\u003eHome Automation Thermostats\u003c\/h3\u003e\u003cp\u003eCombine the LCD controller with the AVR's analog comparators to create a user-friendly thermostat with touch or button input, displaying temperature and schedule information.\u003c\/p\u003e\u003ch3\u003eEmbedded Data Loggers\u003c\/h3\u003e\u003cp\u003eThe 2KB SRAM and 32KB flash are sufficient for logging sensor data, while the SPI\/I2C interfaces enable easy connection to external memory or sensors.\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\u003eTray | \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\u003eSPI, UART\/USART, USI\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003ePeripherals\u003c\/td\u003e \t\u003ctd\u003eBrown-out Detect\/Reset, LCD, POR, PWM, WDT\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eNumber of I\/O\u003c\/td\u003e \t\u003ctd\u003e54\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eProgram Memory Size\u003c\/td\u003e \t\u003ctd\u003e32KB (16K 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\u003e1K x 8\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eRAM Size\u003c\/td\u003e \t\u003ctd\u003e2K 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\u003eSurface Mount\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eSupplier Device Package\u003c\/td\u003e \t\u003ctd\u003e64-TQFP (14x14)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003ePackage \/ Case\u003c\/td\u003e \t\u003ctd\u003e64-TQFP\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\u003e\u003cstrong\u003eQ: What is the maximum operating frequency of the ATMEGA329P-20AU?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eA: The ATMEGA329P-20AU operates at up to 20 MHz with a supply voltage range of 2.7V to 5.5V.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eQ: Does this MCU include an LCD controller?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eA: Yes, it features an integrated LCD controller, making it ideal for display-based applications.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eQ: What is the program memory size?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eA: It has 32KB of in-system programmable flash memory (16K x 16 bits) and 2KB of SRAM.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eQ: What package is available?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eA: The ATMEGA329P-20AU comes in a 64-pin TQFP package, suitable for compact PCB designs.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eQ: What are the key protection features?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eA: It includes brown-out detection, power-on reset, and a watchdog timer for reliable operation.\u003c\/dd\u003e\n\u003c\/dl\u003e","brand":"Microchip Technology","offers":[{"title":"Default Title","offer_id":50882324627745,"sku":"ATMEGA329P-20AU","price":6.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0910\/9756\/3425\/files\/IC_MCU_150_64A_A_64_60db12a4-3cd2-4d4c-85b1-bf6eaf00a4e7.jpg?v=1739197124","url":"https:\/\/hqickey.com\/products\/atmega329p-20au","provider":"HQICKEY","version":"1.0","type":"link"}