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EFR32MG21A020F1024IM32-B The Silicon Labs EFR32MG21A020F1024IM32-B is a multiprotocol wireless SoC featuring an 80 MHz ARM Cortex-M33 core. It offers up to 1024kB of flash and 96kB of RAM.
Mfr Part #:

EFR32MG21A020F1024IM32-B

Available from 2 distributors
Mfr Name: Silicon Labs
Silicon Labs
The Silicon Labs EFR32MG21A020F1024IM32-B is a multiprotocol wireless SoC featuring an 80 MHz ARM Cortex-M33 core. It offers up to 1024kB of flash and 96kB of RAM.
Total Stock: 2,560 pcs
$ Price Range: $710.26

EFR32MG21A020F1024IM32-B Available from 2 distributors

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
1,960 pcs
1960 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
600 pcs
600 pcs On Request 1 On Request On Request On Request On Request On Request

EFR32MG21A020F1024IM32-B Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Core Processor
Current
Data Rate (Max)
Flash Memory
Frequency
GPIO
GPIO Count
Maximum Operating Frequency
Memory Size
Modulation
Mounting Type
Operating Temperature
Operating Voltage
Power
Protocol
RAM Memory
RF Family
RX Current
Sensitivity
Serial Interfaces
Supplier Device Package
Supplier Package
TX power
Tape & Reel
Type
Voltage

EFR32MG21A020F1024IM32-B Description

Short technical summary and product information.

The EFR32MG21A020F1024IM32-B from Silicon Labs is a multiprotocol wireless System on Chip (SoC) designed for energy-friendly IoT devices. It integrates an 80 MHz ARM Cortex-M33 processor with DSP extensions and a floating-point unit, alongside a high-performance 2.4 GHz radio.

 

Key features include up to 1024 kB of flash program memory and 96 kB of RAM data memory. The device supports a maximum operating frequency of 80 MHz and offers a TX power of up to 20 dBm. It operates within a voltage range of 1.71V to 3.8V and supports protocols such as Bluetooth v5.1, Thread, and Zigbee®.

 

This SoC is suitable for applications requiring robust peripheral sets and up to 20 GPIOs. It is available in a 32-QFN (4x4) package and is designed for surface mount installation. The operating temperature range is -40°C to 125°C.

 

With its integrated Hardware Secure Engine, the EFR32MG21A020F1024IM32-B provides a highly secure and energy-efficient solution for connected applications.

EFR32MG21A020F1024IM32-B Quick Information

Product Type: SoC
Series: EFR32MG21
Canonical Name: EFR32MG21A020F1024IM32-B Multiprotocol Wireless SoC
Subcategory: Multiprotocol Wireless SoC

EFR32MG21A020F1024IM32-B Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

EFR32MG21A020F1024IM32-B Estimated Pricing

Qty Low High
1+ $710.26 $710.26

Estimated market price range - modelled values for guidance only, not live distributor offers.

EFR32MG21A020F1024IM32-B Features

  • 80 MHz ARM Cortex-M33 processor with DSP.
  • Up to 1024kB flash and 96kB RAM.
  • 2.4 GHz radio with 20 dBm TX power.
  • Supports Bluetooth, Thread, and Zigbee®.
  • Operates from -40°C to 125°C.

EFR32MG21A020F1024IM32-B Applications

  • Ideal for IoT connected applications.
  • Enables multiprotocol networking.
  • Suitable for lighting control.
  • Used in connected home devices.
  • Applicable for gateways and assistants.

EFR32MG21A020F1024IM32-B FAQs

7 frequently asked questions generated from this part’s specifications.
What is the maximum operating frequency of the EFR32MG21A020F1024IM32-B?

The maximum operating frequency is 80 MHz.

What are the memory sizes for flash and RAM?

It has up to 1024 kB of flash program memory and 96 kB of RAM data memory.

What is the maximum TX power?

The maximum TX power is 20 dBm.

What is the operating temperature range?

The operating temperature range is -40°C to 125°C.

What protocols does this wireless SoC support?

It supports Bluetooth v5.1, Thread, and Zigbee®.

What is the receiver sensitivity?

The receiver sensitivity is -104.9 dBm.

What is the package type and mounting method?

It is a 32-VFQFN Exposed Pad package designed for surface mounting.

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