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EFR32MR21A020F512IM32

Zigbee*, Thread, and Bluetooth Radio Co-Processor (RCP)

The EFR32MR21A020F512IM32 is a wireless RCP (Radio Co-Processor) device that has been optimized for gateways, hubs, and access points. Based on the MG21 family, the MR21 runs the PHY/MAC for 802.15.4 and up to the HCI interface for Bluetooth Low Energy. For products that already have a separate host MCU or MPU, the RCP device enables lower hardware cost by reducing the requirements of the wireless IC and allowing the wireless protocol and application to run on the existing host MCU/MPU. The MR21 device includes 512 Flash, 64 RAM and is available in a QFN32 package. With +20 dBm maximum power output and excellent receive sensitivity the EFR32MR21A020F512IM32 provides a robust RF link for reliable communications.

*Zigbee requires a separate Zigbee software license fee for the EFR32MR21

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Key Specs

 
MCU Core
ARM Cortex-M33
Core Frequency (MHz)
80
Flash (kB)
512
RAM (kB)
64
Secure Vault
Mid
Max Output Power
20
GPIO
20
Temperature (Min)
-40
Temperature (Max)
125
Package Type
QFN32
Zigbee Capable*
Yes*
Thread Capable
Yes
Bluetooth Low Energy Capable
Yes
2.4 GHz Capable
Yes
Sub-GHz Capable
No
MCU Core
ARM Cortex-M33
Core Frequency (MHz)
80
Flash (kB)
512
RAM (kB)
64
Secure Vault
Mid
Max Output Power
20
GPIO
20
Temperature (Min)
-40
Temperature (Max)
125
Package Type
QFN32
Zigbee Capable*
Yes*
Thread Capable
Yes
Bluetooth Low Energy Capable
Yes
2.4 GHz Capable
Yes
Sub-GHz Capable
No

EFR32xG21 Wireless 2.4 GHz Pro Kit +20 dBm

The EFR32xG21 Pro Kit, xG21-PK6027A, is designed to support the development of wireless IoT devices based on the EFR32xG21 Rev D +20 dBm SoC and support the development of wireless protocols including Bluetooth LE, Bluetooth Mesh, Thread (for Matter) and Zigbee.

EFR32xG21 Wireless 2.4 GHz Pro Kit +20 dBm

The EFR32xG21 Pro Kit, xG21-PK6027A, is designed to support the development of wireless IoT devices based on the EFR32xG21 Rev D +20 dBm SoC and support the development of wireless protocols including Bluetooth LE, Bluetooth Mesh, Thread (for Matter) and Zigbee.
MSRP $168.00
Add to Cart
Learn More

EFR32xG21B Rev D Wireless 2.4 GHz +20 dBm Radio Board

The EFR32xG21B Rev D +20 dBm SoC Radio Board, xG21-RB4196B, is designed work with the Wireless Pro Kit Main board (not included) to support the development of wireless IoT devices based on 2.4 GHz wireless protocols including Bluetooth LE, Bluetooth Mesh, Thread (for Matter) and Zigbee.

EFR32xG21B Rev D Wireless 2.4 GHz +20 dBm Radio Board

The EFR32xG21B Rev D +20 dBm SoC Radio Board, xG21-RB4196B, is designed work with the Wireless Pro Kit Main board (not included) to support the development of wireless IoT devices based on 2.4 GHz wireless protocols including Bluetooth LE, Bluetooth Mesh, Thread (for Matter) and Zigbee.
MSRP $28.00
Add to Cart
Learn More

EFR32xG21 Wireless 2.4 GHz Pro Kit +20 dBm

The EFR32xG21 Pro Kit, xG21-PK6027A, is designed to support the development of wireless IoT devices based on the EFR32xG21 Rev D +20 dBm SoC and support the development of wireless protocols including Bluetooth LE, Bluetooth Mesh, Thread (for Matter) and Zigbee.

EFR32xG21 Wireless 2.4 GHz Pro Kit +20 dBm

The EFR32xG21 Pro Kit, xG21-PK6027A, is designed to support the development of wireless IoT devices based on the EFR32xG21 Rev D +20 dBm SoC and support the development of wireless protocols including Bluetooth LE, Bluetooth Mesh, Thread (for Matter) and Zigbee.
MSRP $168.00
Add to Cart
Learn More

EFR32xG21B Rev D Wireless 2.4 GHz +20 dBm Radio Board

The EFR32xG21B Rev D +20 dBm SoC Radio Board, xG21-RB4196B, is designed work with the Wireless Pro Kit Main board (not included) to support the development of wireless IoT devices based on 2.4 GHz wireless protocols including Bluetooth LE, Bluetooth Mesh, Thread (for Matter) and Zigbee.

EFR32xG21B Rev D Wireless 2.4 GHz +20 dBm Radio Board

The EFR32xG21B Rev D +20 dBm SoC Radio Board, xG21-RB4196B, is designed work with the Wireless Pro Kit Main board (not included) to support the development of wireless IoT devices based on 2.4 GHz wireless protocols including Bluetooth LE, Bluetooth Mesh, Thread (for Matter) and Zigbee.
MSRP $28.00
Add to Cart
Learn More

Quality Assurance, Environmental and Packaging Information
Silicon Labs targets a minimum of a 10-year lifecycle for all of its standard products and expects to produce the EFR32MR21A020F512IM32 until at least June 2033.

The longevity date shown above is for the preferred revision of this part number, for a complete list of part number revisions, use the search button below.

As part of its ongoing commitment to supply continuity, Silicon Labs may provide pin-compatible and functionally equivalent replacement products if Silicon Labs determines, at its discretion, that supply chain adjustments, product improvements, market conditions, or similar business or technical issues make this necessary or advisable.

If for business, technical or other reasons beyond Silicon Labs’ reasonable control, Silicon Labs finds that it is necessary to discontinue a product, our policy is to issue an EOL notice that provides 6 months from notice to place final orders and 12 months from notice for final shipments. This policy complies with the JEDEC standard EIA/JESD48 that is commonly used in the semiconductor industry. We provide the required support for a product for its full life cycle.

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