Microchip Technology ATSAMD21G16B-MU

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Product attributes Property Value
Manufacturer Microchip Technology
Product Series SAM D21G, Functional Safety (FuSa)
Packaging Tray |
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 64KB (64K x 8)
Program Memory Type FLASH
EEPROM Size -
RAM Size 8K 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 RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The ATSAMD21G16B-MU is a versatile 32-bit microcontroller from Microchip, featuring an ARM Cortex-M0+ core at 48MHz. It provides 64KB Flash and 8KB SRAM, with a supply voltage range of 1.62V to 3.6V. The 48-pin VFQFN package with exposed pad offers excellent thermal performance. Integrated DMA, I2S, PWM, and multiple safety features make it suitable for a wide range of applications, from consumer electronics to industrial control.

  • Large Memory: 64KB Flash and 8KB SRAM support complex applications.
  • High Speed: 48MHz Cortex-M0+ provides fast processing.
  • Rich Peripherals: I2S, DMA, and PWM enable advanced audio and control.
  • Thermal Efficiency: Exposed pad package improves heat dissipation.
  • Low Power: 1.62V operation and sleep modes extend battery life.

Advanced IoT Gateways

64KB Flash and 48MHz speed handle complex protocols like MQTT and TLS in smart home hubs.

Robotics Control Boards

DMA and PWM enable precise motor control and sensor fusion in educational robots.

Portable Audio Devices

I2S interface supports high-fidelity audio streaming in MP3 players and voice recorders.

Industrial Data Acquisition

8KB RAM and multiple ADC channels allow simultaneous sampling of multiple sensors.

Smart Agriculture Sensors

Low power and wide voltage range suit solar-powered field sensors.

Medical Monitoring Devices

Reliable operation and rich peripherals support ECG and pulse oximeter designs.

Q: What is the core of the ATSAMD21G16B-MU?
A: It uses the ARM Cortex-M0+ processor.
Q: What is the maximum speed?
A: It runs at up to 48 MHz.
Q: What is the supply voltage range?
A: It operates from 1.62V to 3.6V.
Q: How much Flash and RAM does it have?
A: It has 64KB Flash and 8KB SRAM.
Q: What package is this?
A: It is in a 48-pin VFQFN package with exposed pad.
Base Product Number : ATSAMD21G16B
32-bit MCU 48MHz 64KB Flash 8KB RAM ARM Cortex-M0+ DMA I2S industrial IoT PWM VFQFN-48
Q: What is the core of the ATSAMD21G16B-MU?
A: It uses the ARM Cortex-M0+ processor.
Q: What is the maximum speed?
A: It runs at up to 48 MHz.
Q: What is the supply voltage range?
A: It operates from 1.62V to 3.6V.
Q: How much Flash and RAM does it have?
A: It has 64KB Flash and 8KB SRAM.
Q: What package is this?
A: It is in a 48-pin VFQFN package with exposed pad.