Microchip Technology ATSAMD21G18A-MUT
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $3.95 | $3.95 |
| 15+ | $3.83 | $57.45 |
| 25+ | $3.74 | $93.50 |
| 50+ | $3.54 | $177.00 |
| 100+ | $3.12 | $312.00 |
| N+ | $0.62 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | SAM D21G, Functional Safety (FuSa) |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| Core Processor | ARM® Cortex®-M0+ |
| Core Size | 32-Bit Single-Core |
| Speed | 48MHz |
| 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 |
| EEPROM Size | - |
| RAM Size | 32K x 8 |
| Voltage - Supply (Vcc/Vdd) | 1.62V ~ 3.6V |
| Data Converters | A/D 14x12b; D/A 1x10b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Surface Mount |
| Supplier Device Package | 48-QFN (7x7) |
| Package / Case | 48-VFQFN Exposed Pad |
| ROHS |
The Microchip ATSAMD21G18A-MUT is a 32-bit ARM Cortex-M0+ MCU running at 48MHz. It features 256KB flash and 32KB SRAM in a 48-VFQFN package, with a supply range of 1.62V to 3.6V. It includes DMA, I2S, PWM, and brown-out detection, making it a versatile choice for low-power applications.
- Large Flash (256KB): Provides ample space for complex firmware, RTOS, and application code.
- Ultra-Low Power: The Cortex-M0+ core and multiple sleep modes enable battery life of years in sensor applications.
- High-Speed 48MHz: Balances performance and power consumption for responsive yet efficient operation.
- Flexible Power Supply: 1.62V-3.6V range supports a wide variety of power sources, from single-cell batteries to regulated 3.3V rails.
Wearable Fitness Trackers
The ultra-low-power Cortex-M0+ core with 1.62V operation is perfect for always-on step counting and heart rate monitoring, with 32KB RAM for sensor data buffering.
Smart Home Sensors
Use the 256KB flash to store complex calibration tables and communication stacks for Zigbee or Thread in smart thermostats or door sensors.
Industrial Data Loggers
With DMA and multiple serial interfaces, it can log data from multiple sensors to external memory while running a real-time clock.
Portable GPS Trackers
The 48MHz speed handles GPS decoding algorithms, while the low-power modes extend battery life between location updates.
Consumer Electronics
Control user interfaces with capacitive touch (via external touch controllers) and drive small displays in appliances or remote controls.
Environmental Monitoring
Deploy in remote weather stations, where the wide voltage range accommodates solar-charged batteries and the robust package handles outdoor temperature swings.
- Q: What core does this MCU use?
- A: It uses an ARM Cortex-M0+ core.
- Q: What is the maximum clock speed?
- A: It runs at up to 48MHz.
- Q: How much flash memory is available?
- A: It has 256KB of flash memory.
- Q: What is the supply voltage range?
- A: It operates from 1.62V to 3.6V.
- Q: What core does this MCU use?
- A: It uses an ARM Cortex-M0+ core.
- Q: What is the maximum clock speed?
- A: It runs at up to 48MHz.
- Q: How much flash memory is available?
- A: It has 256KB of flash memory.
- Q: What is the supply voltage range?
- A: It operates from 1.62V to 3.6V.

ATSAMD21G18A-MUT.pdf