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EFR32MG21A020F512IM32-B The Silicon Labs EFR32MG21A020F512IM32-B is a multiprotocol wireless SoC featuring an ARM Cortex-M33 core. It operates at 2.4GHz and offers up to 20dBm TX power.
Mfr Part #:

EFR32MG21A020F512IM32-B

Available from 3 distributors
Mfr Name: Silicon Labs
Silicon Labs
The Silicon Labs EFR32MG21A020F512IM32-B is a multiprotocol wireless SoC featuring an ARM Cortex-M33 core. It operates at 2.4GHz and offers up to 20dBm TX power.
Total Stock: 10,366 pcs
$ Price Range: $710.26

EFR32MG21A020F512IM32-B Available from 3 distributors

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Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
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6,000 pcs
6000 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
3,280 pcs
3280 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
1,086 pcs
1086 pcs On Request 1 On Request On Request On Request On Request On Request

EFR32MG21A020F512IM32-B Specifications Quick View

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

EFR32MG21A020F512IM32-B Description

Short technical summary and product information.

The EFR32MG21A020F512IM32-B from Silicon Labs is a multiprotocol wireless System-on-Chip (SoC) designed for energy-friendly, multi-protocol, multiband networking in IoT devices. It integrates an 80 MHz ARM Cortex-M33 processor with DSP extensions and a floating-point unit, a high-performance 2.4 GHz radio, and a hardware secure engine for enhanced security.

 

Key electrical specifications include a maximum operating frequency of 80 MHz, up to 1024 kB of flash program memory and 96 kB of RAM. The device supports a maximum data rate of 2 Mbps and offers a TX power output of up to 20 dBm. Receiver sensitivity is rated at -104.9 dBm. It operates within a supply voltage range of 1.71V to 3.8V and has a low receiving current of 8.8 mA and transmitting current of 33.8 mA.

 

This SoC is housed in a 32-VFQFN (4x4) package and supports surface mount installation. It operates across a wide temperature range of -40°C to 125°C. The EFR32MG21A020F512IM32-B supports multiple protocols including Bluetooth v5.1, Thread, and Zigbee®, making it versatile for various connected applications.

 

Applications for this device include IoT multi-protocol devices, lighting control, connected home systems, gateways, digital assistants, and building automation and security systems.

EFR32MG21A020F512IM32-B Quick Information

Product Type: RF System on a Chip - SoC
Canonical Name: EFR32MG21A020F512IM32-B Multiprotocol Wireless SoC
Subcategory: RF Transceiver ICs

EFR32MG21A020F512IM32-B Compliance

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

EFR32MG21A020F512IM32-B Estimated Pricing

Qty Low High
1+ $710.26 $710.26

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

EFR32MG21A020F512IM32-B Features

  • 80 MHz ARM Cortex-M33 processor with DSP.
  • Up to 1024 kB flash and 96 kB RAM.
  • 2.4 GHz radio with 20 dBm TX power.
  • Supports Bluetooth, Thread, and Zigbee protocols.
  • Surface mount 32-QFN (4x4) package.

EFR32MG21A020F512IM32-B Applications

  • Ideal for IoT multi-protocol devices.
  • Enables connected home applications.
  • Suitable for building automation.
  • Used in gateways and digital assistants.
  • Supports smart lighting systems.

EFR32MG21A020F512IM32-B FAQs

7 frequently asked questions generated from this part’s specifications.
What is the maximum operating frequency of the EFR32MG21A020F512IM32-B?

The maximum operating frequency is 80 MHz.

What are the memory specifications for this SoC?

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

What is the maximum TX power output?

The maximum TX power output is 20 dBm.

What supply voltage range does the EFR32MG21A020F512IM32-B support?

It supports a supply voltage range from 1.71V to 3.8V.

What is the operating temperature range?

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

What wireless protocols does this SoC support?

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

What package type is the EFR32MG21A020F512IM32-B available in?

It is available in a 32-VFQFN Exposed Pad package.

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