The ATSAMD21G18A-MU is a low-power, 32-bit microcontroller based on the ARM Cortex-M0+ architecture, capable of operating at speeds up to 48 MHz. It features a single-cycle hardware multiplier and includes a Micro Trace Buffer for debugging. The device offers a range of memory options, including up to 256 KB of in-system self-programmable Flash and 32 KB of SRAM. This microcontroller supports various power management modes, including idle and stand-by sleep modes, and features SleepWalking peripherals to enhance energy efficiency. It is equipped with a comprehensive set of peripherals, including a 12-channel Event System, multiple timer/counter configurations, a 32-bit Real Time Counter, and a watchdog timer. The ATSAMD21G18A-MU also includes a full-speed USB 2.0 interface, multiple serial communication interfaces (SERCOM), and a 12-bit ADC with up to 20 channels. Operating voltage ranges from 1.62V to 3.63V, and the device is qualified to AEC-Q100 Grade 1, making it suitable for automotive applications. The microcontroller is available in various package options, including 48-pin QFN and TQFP formats, and is drop-in compatible with the SAM D20 series.
Manufacturer: Microchip Technology
Win Source Part Number: 803353-ATSAMD21G18A-
Packaging: Tray
Mounting Style: SMD
Core Processor: ARM Cortex -M0+
Speed: 48MHz
Core Size: 32-Bit
Connectivity: I2C, LINbus, SPI, UART/USART, USB
Peripherals: Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT
Number of I/O: 38
Program Memory Size: 256KB (256K x 8)
Program Memory Type: FLASH
RAM Size: 32K x 8
Data Converters: A/D 14x12b; D/A 1x10b
Oscillator Type: Internal
Supplier Device Package: 48-QFN (7x7)
Temperature Range - Operating: -40°C ~ 85°C
Manufacturer Package: 48-VFQFN Exposed Pad
Popularity: Medium
Fake Threat In the Open Market: 70 pct.
Supply and Demand Status: Balance
Manufacturer Pack Quantity: 416
MSL Level: 3 (168 Hours)
Part Number Series: ATSAMD21G18
Voltage - Supply (Vcc/Vdd): 1.62V ~ 3.6V
48QFN IND TEMP, GREEN,1.6-3.6V,48MHz
48QFN IND TEMP, GREEN,1.6-3.6V,48MHz
48QFN IND TEMP, GREEN,1.6-3.6V,48MHz
IC MCU 32BIT 256KB FLASH 48QFN
IC MCU 32BIT 256KB FLASH 48QFN
ARM® Cortex®-M0+ SAM D21G, Functional Safety (FuSa) Microcontroller IC 32-Bit Single-Core 48MHz 256KB (256K x 8) FLASH 48-QFN (7x7)
IC MCU 32BIT 256KB FLASH 48QFN Product overview: ATSAMD21G18A-MU from Microchip Technology is an Embedded Microcontroller MCU for industrial control, IoT devices, embedded automation, motor control, metering, and low-power board designs. It is useful for engineers and buyers comparing datasheets, replacement parts, BOM lines, package options, lifecycle status, and procurement availability. Key searchable attributes include 32-bit, 32BIT, 256KB. Search-friendly keywords include microcontroller, MCU, embedded control, ARM Cortex, Flash memory, low-power, 32-bit, 32BIT, 256KB, Embedded Microcontroller MCU. This listing supports clearer product discovery for industrial, commercial, repair, automation, power, sensing, and embedded system projects. Product number 685-ATSAMD21G18A-MU can be used for catalog matching and distributor lookup.
IC MCU 32BIT 256KB FLASH 48QFN
ARM Microcontrollers - MCU 256KB 32KB 48QFN GRN1.6-3.6V48MHz
ARM® Cortex®-M0+ SAM D21G, Functional Safety (FuSa) Microcontroller IC 32-Bit Single-Core 48MHz 256KB (256K x 8) FLASH 48-QFN (7x7)
ARM® Cortex®-M0+ SAM D21G, Functional Safety (FuSa) Microcontroller IC 32-Bit Single-Core 48MHz 256KB (256K x 8) FLASH 48-QFN (7x7)
MCU, 48MHZ, 32BIT, QFPN-48; Product Range:SAM32 Family SAM D2X Series Microcontrollers; Device Core:ARM Cortex-M0+; Data Bus Width:32bit; Operating Frequency Max:48MHz; Program Memory Size:256KB; No. of Pins:48Pins RoHS Compliant: Yes
IC MCU 32BIT 256KB FLASH 48QFN
| Win Source Electronics | RS Components, Ltd. | RS Components, Ltd. | ODG (Origin Data Global) | DigiKey | ERSAELECTRONICS PTE. LTD. | Lingto Electronic Limited | VAST STOCK CO., LIMITED | Quarktwin Technology Ltd. | Newark, An Avnet Company | Shenzhen Shengyu Electronics Technology Limited | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Product Category | Microcontrollers (MCU) | Microcontrollers (MCU) | Microcontrollers (MCU) | Microcontrollers (MCU) | Microcontrollers (MCU) | Microcontrollers (MCU) | Microcontrollers (MCU) | Microcontrollers (MCU) | Microcontrollers (MCU) | Microcontrollers (MCU) | Microcontrollers (MCU) |
| Product Number | 803353-ATSAMD21G18A-MU | 1773813 | 1773813P | ATSAMD21G18A-MU | ATSAMD21G18A-MU-ND | 685-ATSAMD21G18A-MU | ATSAMD21G18A-MU | ATSAMD21G18A-MU | ATSAMD21G18A-MU | 45X9930 | ATSAMD21G18A-MU |
| Product Name | Embedded - Embedded - Microcontrollers - ATSAMD21G18A-MU | Microcontrollers | Microcontrollers | Microcontrollers | Microcontrollers | 32-bit 32BIT 256KB Embedded Microcontroller MCU | Embedded - Microcontrollers | ARM Microcontrollers - MCU | Microcontrollers | Mcu, 48Mhz, 32Bit, Qfpn-48; Product Range Microchip | Integrated Circuits (ICs) - Embedded - Microcontrollers |
| Data Bus | 32 Bit | 32 Bit; 32bit | 32 Bit; 32bit | 32 Bit | 32 Bit | 32 Bit | 32 Bit; 32-Bit | 32 Bit; 32-Bit Single-Core | 32 Bit | ||
| Clock Speed | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 48 MHz | ||||
| RAM | 256 KB | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB | ||||
| ROM Type | Flash; FLASH | Flash; FLASH | Flash | ||||||||
| Supply Voltage | 1.62 to 3.6 volts | 1.62 to 3.6 volts | 1.62 to 3.6 volts | 1.62 to 3.6 volts | 3.6 to 1.62 volts |
