ATSAMD21G16B-MU

$2.31

Description：IC MCU 32BIT 64KB FLASH 48QFN
Series：SAM D21G, Functional Safety (FuSa)
Mfr：Microchip Technology
Package：Tray
Core Processor：ARM® Cortex®-M0+

SKU:ceba6bbb8c3f Category: Microcontrollers Brand: Microchip Technology

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Product introduction

Product Detailed Parameters

Description：IC MCU 32BIT 64KB FLASH 48QFN
Series：SAM D21G, Functional Safety (FuSa)
Mfr：Microchip Technology
Package：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)
Mounting Type：Surface Mount
Supplier Device Package：48-QFN (7x7)
Package / Case：48-VFQFN Exposed Pad
Grade：-
Qualification：-

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ATSAMD21G16B-MU

Overview

The ATSAMD21G16B-MU is a 32-bit microcontroller based on the ARM Cortex-M0+ core, operating at a maximum frequency of 48MHz. It features 64KB of Flash memory and 8KB of SRAM. The device supports a supply voltage range of 1.62V to 3.6V and includes 14-channel 12-bit ADCs and one 10-bit DAC. Connectivity options include I2C, SPI, UART/USART, USB, LINbus, and I2S. It is housed in a 48-QFN (7x7) package with 38 I/O pins and operates within a temperature range of -40°C to +85°C.

Feature Summary

Integrated Functional Safety (FuSa) capabilities for safety-critical applications
Built-in Full-Speed USB interface for communication and programming
Advanced analog peripherals including multiple high-resolution ADCs and a DAC
Comprehensive set of low-power modes for energy-efficient operation

Applications

Industrial control systems requiring functional safety compliance
Consumer electronics utilizing USB connectivity
Automotive modules certified under AEC-Q100 standards
Smart sensors with analog signal processing needs

Procurement Notes

Verify the specific suffix 'MU' confirms the 48-QFN package and commercial temperature grade (-40°C to +85°C). Confirm AEC-Q100 qualification status if automotive reliability is required. Check current datasheet revisions for errata updates. Ensure ESD protection measures are adequate for the QFN footprint during assembly.

Selection Notes

Select this model when 64KB program memory and 8KB RAM are sufficient for the application logic. Choose over variants with different packages or temperature ranges if board space constraints favor the 48-QFN form factor. Consider the internal oscillator accuracy requirements against external crystal options available in other pin-compatible parts.

Part Context

This component belongs to the SAM D21G series, which emphasizes functional safety alongside standard performance. It shares the Cortex-M0+ architecture with other SAM D21 devices but offers specific memory sizes and peripheral configurations tailored for cost-sensitive yet reliable embedded designs.