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Silicon Labs ARM Cortex M33 System-On-Chip 32-Pin QFN Microcontroller 38.4MHz 1024kB FLASH 96kB RAM EFR32MG21A020F1024IM32-B

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Silicon Labs ARM Cortex M33 System-On-Chip 32-Pin QFN Microcontroller 38.4MHz 1024kB FLASH 96kB RAM EFR32MG21A020F1024IM32-B

Name: Silicon Labs ARM Cortex M33 System-On-Chip 32-Pin QFN Microcontroller 38.4MHz 1024kB FLASH 96kB RAM EFR32MG21A020F1024IM32-B
Brand: Silicon Labs
SKU: 336263
Price: 7.97 USD
Availability: InStock

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Category Microcontroller Brand Silicon Labs Condition New

Specifications

Country of Origin	India
Brand	Silicon Labs
Height	850μm
Length	4.1mm
Model	EFR32MG21A020F1024IM32-B
Technology	ARM Cortex M33
Width	4.1mm
Mount Type	Surface
Series	Mighty Gecko
Maximum Operating Temperature	125°C
Package Type	QFN
Minimum Operating Temperature	-40°C
Pin Count	32
Maximum Supply Voltage	3.8V
Minimum Supply Voltage	1.71V
Program Memory Size	1024kB
Program Memory Type	FLASH
Clock frequency	38.4MHz
Number of I/Os	20
Processing Unit	Microcontroller

Key Features

Built on ARM Cortex M33 technology offering robust processing capabilities.
Surface-mounted QFN 32-pin package ensures compact design integration.
Supports operating voltage range from 1.71V to 3.8V.
Wide operating temperature range from -40°C to 125°C for harsh environments.
Includes 20 I/O pins for flexible interfacing.
Designed for Zigbee, Thread, and multiprotocol RF applications with strong RF link.
Compact dimensions of 4.1mm x 4.1mm x 850μm height.
Part of the Mighty Gecko EFR32MG21 series with advanced security features.

Product Description

Silicon Labs EFR32MG21A020F1024IM32-B is a system-on-chip microcontroller built on the ARM Cortex M33 processing unit, optimized for wireless and IoT applications. Operating at a clock frequency of 38.4MHz, it integrates 1024kB of FLASH program memory and 96kB of RAM, housed in a compact 32-pin QFN surface mount package, measuring 4.1mm by 4.1mm with a height of 850μm.

This device supports a broad supply voltage range from 1.71V minimum up to 3.8V maximum, enabling versatility across low power and high performance environments. It is engineered to operate reliably within temperatures ranging from -40°C to 125°C, making it suitable for industrial and automotive use cases.

Equipped with 20 input/output pins, the microcontroller supports complex interfacing and communication needs. It is optimized for Zigbee, Thread, and multiprotocol wireless standards, with an embedded ARM Cortex M33 core coupled with a dedicated security core to enhance fast encryption, secure boot loading, and debug access control.

The EFR32MG21A020F1024IM32-B series provides a balance of processing power and security, targeting applications such as smart home devices, industrial automation, and commercial wireless networks. Its small footprint and robust RF capabilities enable excellent range and reliable communication.

Built on ARM Cortex M33 technology offering robust processing capabilities. Surface-mounted QFN 32-pin package ensures compact design integration. Supports operating voltage range from 1.71V to 3.8V. Wide operating temperature range from -40°C to 125°C for harsh environments.

Includes 20 I/O pins for flexible interfacing. Designed for Zigbee, Thread, and multiprotocol RF applications with strong RF link. Compact dimensions of 4.1mm x 4.1mm x 850μm height. Part of the Mighty Gecko EFR32MG21 series with advanced security features.

This microcontroller is ideal for industrial, commercial, and IoT wireless applications requiring secure and reliable communications. It supports easy migration from EFR32MG Series 1 with provided development kits and SDKs for rapid time-to-market development.

Explore the Electronics & Electricals category on EnvMart for more Microcontrollers and system-on-chip solutions optimized for your production requirements.