{"product_id":"atsamd21g18a-mu","title":"ATSAMD21G18A-MU","description":"\u003cp\u003eThe ATSAMD21G18A-MU is a 32-bit ARM Cortex-M0+ MCU from Microchip with 256KB flash and 32KB SRAM. Operating from 1.62V to 3.6V at 48MHz, it features DMA, I2S, multiple PWM channels, and a rich analog peripheral set. The 48-VFQFN package is perfect for advanced IoT and portable applications.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eARM Cortex-M0+ ecosystem – extensive software libraries and toolchain support.\u003c\/li\u003e\n\u003cli\u003eDMA controller – reduces CPU overhead for high-throughput data streams.\u003c\/li\u003e\n\u003cli\u003eUltra-low voltage (1.62V) – enables direct energy harvesting and single-cell battery use.\u003c\/li\u003e\n\u003cli\u003eLarge 256KB flash – accommodates complex firmware and OTA updates.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eIoT Edge Nodes\u003c\/h3\u003e\u003cp\u003eARM Cortex-M0+ with 48MHz and DMA offloads sensor data collection, reducing CPU load for wireless protocol stacks.\u003c\/p\u003e\u003ch3\u003eWearable Health Trackers\u003c\/h3\u003e\u003cp\u003eUltra-low 1.62V operation and multiple sleep modes enable months of battery life in fitness bands.\u003c\/p\u003e\u003ch3\u003eSmart Home Hubs\u003c\/h3\u003e\u003cp\u003eI2S interface supports digital audio for voice-controlled assistants, while DMA handles audio streaming.\u003c\/p\u003e\u003ch3\u003eIndustrial Data Loggers\u003c\/h3\u003e\u003cp\u003e256KB flash stores extensive logs, and 32KB SRAM buffers high-speed ADC samples.\u003c\/p\u003e\u003ch3\u003ePortable Test Equipment\u003c\/h3\u003e\u003cp\u003e48MHz speed and rich peripherals (ADC, DAC, comparators) support oscilloscope and multimeter functions.\u003c\/p\u003e\u003ch3\u003eMechatronic Actuators\u003c\/h3\u003e\u003cp\u003ePWM and event system provide deterministic response for robotic arm joint control.\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\u003eSAM D21G, Functional Safety (FuSa)\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\u003eARM® Cortex®-M0+\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eCore Size\u003c\/td\u003e \t\u003ctd\u003e32-Bit Single-Core\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eSpeed\u003c\/td\u003e \t\u003ctd\u003e48MHz\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eConnectivity\u003c\/td\u003e \t\u003ctd\u003eI2C, LINbus, SPI, UART\/USART, USB\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003ePeripherals\u003c\/td\u003e \t\u003ctd\u003eBrown-out Detect\/Reset, DMA, I2S, POR, PWM, WDT\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eNumber of I\/O\u003c\/td\u003e \t\u003ctd\u003e38\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eProgram Memory Size\u003c\/td\u003e \t\u003ctd\u003e256KB (256K x 8)\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\u003e-\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eRAM Size\u003c\/td\u003e \t\u003ctd\u003e32K x 8\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eVoltage - Supply (Vcc\/Vdd)\u003c\/td\u003e \t\u003ctd\u003e1.62V ~ 3.6V\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eData Converters\u003c\/td\u003e \t\u003ctd\u003eA\/D 14x12b; D\/A 1x10b\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\u003e48-QFN (7x7)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003ePackage \/ Case\u003c\/td\u003e \t\u003ctd\u003e48-VFQFN Exposed Pad\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 core does this MCU use?\u003c\/dt\u003e\n\u003cdd\u003eA: ARM Cortex-M0+ at 48MHz.\u003c\/dd\u003e\n\u003cdt\u003eQ: How much flash and RAM?\u003c\/dt\u003e\n\u003cdd\u003eA: 256KB flash and 32KB SRAM.\u003c\/dd\u003e\n\u003cdt\u003eQ: What is the voltage range?\u003c\/dt\u003e\n\u003cdd\u003eA: 1.62V to 3.6V, suitable for low-power IoT.\u003c\/dd\u003e\n\u003cdt\u003eQ: Does it support DMA?\u003c\/dt\u003e\n\u003cdd\u003eA: Yes, with 12-channel DMA controller for peripheral data transfer.\u003c\/dd\u003e\n\u003cdt\u003eQ: What package is available?\u003c\/dt\u003e\n\u003cdd\u003eA: 48-VFQFN exposed pad, ideal for compact designs.\u003c\/dd\u003e\n\u003c\/dl\u003e","brand":"Microchip Technology","offers":[{"title":"Default Title","offer_id":50882543190305,"sku":"ATSAMD21G18A-MU","price":3.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0910\/9756\/3425\/files\/IC_MCU_150_48QFN-.90-7X7_48_a2d1016e-ae3d-4ce0-86b6-4845b6af0d06.jpg?v=1739202124","url":"https:\/\/hqickey.com\/products\/atsamd21g18a-mu","provider":"HQICKEY","version":"1.0","type":"link"}