Please refer to the English Version as our Official Version.

Europe: France~~(Français)~~ Germany~~(Deutsch)~~ Italy~~(Italia)~~ Russian~~(русский)~~ Poland~~(polski)~~ Czech~~(Čeština)~~ Luxembourg~~(Lëtzebuergesch)~~ Netherlands~~(Nederland)~~ Iceland~~(íslenska)~~ Hungarian~~(Magyarország)~~ Spain~~(español)~~ Portugal~~(Português)~~ Turkey~~(Türk dili)~~ Bulgaria~~(Български език)~~ Ukraine~~(Україна)~~ Greece~~(Ελλάδα)~~ Israel~~(עִבְרִית)~~ Sweden~~(Svenska)~~ Finland~~(Svenska)~~ Finland~~(Suomi)~~ Romania~~(românesc)~~ Moldova~~(românesc)~~ Slovakia~~(Slovenská)~~ Denmark~~(Dansk)~~ Slovenia~~(Slovenija)~~ Slovenia~~(Hrvatska)~~ Croatia~~(Hrvatska)~~ Serbia~~(Hrvatska)~~ Montenegro~~(Hrvatska)~~ Bosnia and Herzegovina~~(Hrvatska)~~ Lithuania~~(lietuvių)~~ Spain~~(Português)~~ Switzerland~~(Deutsch)~~ United Kingdom~~(English)~~

Asia/Pacific: Japan~~(日本語)~~ Korea~~(한국의)~~ Thailand~~(ภาษาไทย)~~ Malaysia~~(Melayu)~~ Singapore~~(Melayu)~~ Vietnam~~(Tiếng Việt)~~ Philippines~~(Pilipino)~~

Africa, India and Middle East: United Arab Emirates~~(العربية)~~ Iran~~(فارسی)~~ Tajikistan~~(فارسی)~~ India~~(हिंदी)~~ Madagascar~~(malaɡasʲ)~~

South America / Oceania: New Zealand~~(Maori)~~ Brazil~~(Português)~~ Angola~~(Português)~~ Mozambique~~(Português)~~

North America: United States~~(English)~~ Canada~~(English)~~ Haiti~~(Ayiti)~~ Mexico~~(español)~~

Home Products RF/IF and RFID RF Transceiver ICs~~EFR32MG21B010F768IM32-B~~

Image may be representation.
See specifications for product details.

~~Favorite~~

EXPRESS OPTION

Payment method

EFR32MG21B010F768IM32-B - Silicon Labs

Manufacturer Part Number: EFR32MG21B010F768IM32-B

Manufacturer: Energy Micro (Silicon Labs)

Allelco Part Number: 98D-EFR32MG21B010F768IM32-B

Warranty: 1 Year Allelco Warranty - Find out more

Parts Description: MIGHTY GECKO, QFN32, 2.4G, 10DB,

Package: 32-QFN (4x4)

Data sheet: 1.EFR32MG21B010F7.pdf ...

Other Related Documents
A-00000388 Security Advisory.pdf A-00000445 Security Advisory.pdf A-00000447 Security Advisory.pdf

RoHs Status: ROHS3 Compliant

~~Compare~~

Our certification

In stock: 40989

Unit Price: $3.253
Subtotal: $0.00

Want a better price?
Add to Cart and Submit RFQ now, we'll contact you immediately.

Quantity	Unit Price	Ext. Price
1+	$3.253	$3.25
200+	$1.259	$251.80
490+	$1.216	$595.84
980+	$1.194	$1,170.12

The above prices does not include taxes and freight rates, which will be calculated on the order pages.

EXPRESS OPTION

Payment method

Our certification

Specifications

EFR32MG21B010F768IM32-B Tech Specifications
Silicon Labs - EFR32MG21B010F768IM32-B technical specifications, attributes, parameters and parts with similar specifications to Silicon Labs - EFR32MG21B010F768IM32-B

Product Attribute	Attribute Value
Manufacturer	Energy Micro (Silicon Labs)
Voltage - Supply	1.71V ~ 3.8V
Type	TxRx + MCU
Supplier Device Package	32-QFN (4x4)
Series	Mighty Gecko
Serial Interfaces	I²C, I²S, SPI, IrDA, UART, USART
Sensitivity	-104.9dBm
RF Family/Standard	802.15.4, Bluetooth
Protocol	Bluetooth v5.1, Thread, Zigbee®
Power - Output	10dBm
Package / Case	32-VFQFN Exposed Pad

Product Attribute	Attribute Value
Package	Tray
Operating Temperature	-40°C ~ 125°C (TA)
Mounting Type	Surface Mount
Modulation	DSSS, GFSK, O-QPSK
Memory Size	768kB Flash, 64kB RAM
GPIO	20
Frequency	2.4GHz ~ 2.4835GHz
Data Rate (Max)	2Mbps
Current - Transmitting	9.3mA ~ 185mA
Current - Receiving	8.8mA ~ 9.8mA
Base Product Number	EFR32MG21B010

Environmental & Export Classifications

ATTRIBUTE	DESCRIPTION
RoHs Status	ROHS3 Compliant
ECCN	5A992C
HTSUS	8542.39.0001

Parts with Similar Specifications

The three parts on the right have similar specifications to Silicon Labs EFR32MG21B010F768IM32-B

Product Attribute
Part Number	EFR32MG21B010F768IM32-BR	EFR32MG21B020F768IM32-B	EFR32MG21B020F768IM32-BR	EFR32MG21A020F768IM32-BR
Manufacturer	Silicon Labs	Silicon Labs	Silicon Labs	Silicon Labs
Current - Transmitting	-	-	-	-
Current - Receiving	-	-	-	-
Frequency	-	-	-	-
Voltage - Supply	-	-	-	-
Modulation	-	-	-	-
Protocol	-	-	-	-
Series	-	-	-	-
Memory Size	-	-	-	-
Base Product Number	-	DAC34H84	MAX500	ADS62P42
Serial Interfaces	-	-	-	-
Package / Case	-	196-LFBGA	16-DIP (0.300', 7.62mm)	64-VFQFN Exposed Pad
Package	-	Tape & Reel (TR)	Tube	Tape & Reel (TR)
RF Family/Standard	-	-	-	-
Supplier Device Package	-	196-NFBGA (12x12)	16-PDIP	64-VQFN (9x9)
GPIO	-	-	-	-
Power - Output	-	-	-	-
Mounting Type	-	Surface Mount	Through Hole	Surface Mount
Sensitivity	-	-	-	-
Data Rate (Max)	-	-	-	-
Operating Temperature	-	-40°C ~ 85°C	0°C ~ 70°C	-40°C ~ 85°C
Type	-	-	-	-

EFR32MG21B010F768IM32-B Datasheet PDF

Download EFR32MG21B010F768IM32-B pdf datasheets and Silicon Labs documentation for EFR32MG21B010F768IM32-B - Silicon Labs.

Other Related Documents: A-00000388 Security Advisory.pdf A-00000445 Security Advisory.pdf A-00000447 Security Advisory.pdf

Customers Also Interested in

Recommended Products

Customer Reviews

Evaluation: 10 Articles

Jess***Jones

Apr 17, 2026

It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.
Mich***Smith

Apr 17, 2026

Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.
Aman***arris

Apr 3, 2026

It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.
Mike***nch

Apr 3, 2026

Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.
Daic***K.

Mar 23, 2026

Very good. No issue after long time testing.
Kevi***.

Mar 17, 2026

Fast switching and stable output. Very satisfied with this IC
Daou***hekebkeb

Jun 16, 2024

I had a great experience purchasing items from Allelcoelec, I recommend
Uri ***al

Jun 19, 2024

Good comunication,
Transpnt regarding the process and price.
Yaqu***l Ali

Jun 19, 2024

Providing reasonable prices, regular follow-up of orders, providing accurate and regular invoices, timely delivery of goods, excellent customer service and providing original goods and best quality materials.
Lea ***

Jun 19, 2024

Morrey was very helpful and right on top of things!
He replied quickly to my RFQ. He was very courteous and professional.

Write a Review

Your Email address will not be published.

Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

Use your express account for shipment if you have one.
Use our account for the shipment. Refer to the table below for the approximate charges.

(Different time frame / countries / package size has different price.)

Delivery Method

Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region	Country	Logistic Time(Day)
America	United States	5
America	Brazil	7
Europe	Germany	5
	United Kingdom	4
	Italy	5
Oceania	Australia	6
Oceania	New Zealand	5
Asia	India	4
Asia	Japan	4
Middle East	Israel	6

DHL & FedEx Shipment Charges Reference
Shipment charges(KG)	Reference DHL(USD$)
0.00kg-1.00kg	USD$30.00 - USD$60.00
1.00kg-2.00kg	USD$40.00 - USD$80.00
2.00kg-3.00kg	USD$50.00 - USD$100.00

Note:: The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.

Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.

Your Faithful Supply Chain Partner -

Efficient Supply Management
Cost-Saving Procurement
Fast Sourcing & Delivery

Contact us if you have any questions.

Phone
+00852 9146 4856
Email
info@allelco.com

Certifications & Memberships