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EFR32SG28B320F1024IM48

EFR32SG28 Series 2 SoCs

The EFR32SG28B320F1024IM48 is a secure, low power dual-band SoC for Amazon Sidewalk devices that supports Bluetooth Low Energy and sub-GHz FSK, providing reliable connectivity in the home using Bluetooth LE and beyond the front door using sub-GHz FSK to cover detached building, pools and spas. The multi-core device has efficient ARM Cortex®-M33 running up to 78 MHz and with 1024 kB of Flash and 256 kB of RAM. The low active and sleep currents make it ideal for battery operated end devices like sensors including door, window, and temperature sensors devices, while the link budget of 128.6 dBm provides long range and reliable communication. The dedicated security core supports our Secure Vault™ High, bringing industry leading IoT security to the device to protect wireless data and the device from both remote and local attacks.

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Key Specs

 
MCU Core
ARM Cortex-M33
Frequency Max
928.1
Tx Power (dBm)
20
Flash (kB)
1024
RAM (kB)
256
Bluetooth 5-2MPHY
No
Bluetooth 5- LE Long Range
No
Sub-GHz Capable
Yes
Dig I/O Pins
31
Bluetooth Low Energy
No
Secure Vault
High
Package Type
QFN48
MCU Core
ARM Cortex-M33
Frequency Max
928.1
Tx Power (dBm)
20
Flash (kB)
1024
RAM (kB)
256
Bluetooth 5-2MPHY
No
Bluetooth 5- LE Long Range
No
Sub-GHz Capable
Yes
Dig I/O Pins
31
Bluetooth Low Energy
No
Secure Vault
High
Package Type
QFN48

EFR32xG28 Pro Kit +20 dBm

The EFR32xG28 +20 dBm Pro Kit is designed to support the development of Wireless IoT devices based on Sub-GHz and 2.4 GHz protocols like Wi-SUN, Amazon Sidewalk, Wireless M-BUS, Silicon Labs CONNECT, Proprietary protocols, and Bluetooth Low Energy.

EFR32xG28 Pro Kit +20 dBm

The EFR32xG28 +20 dBm Pro Kit is designed to support the development of Wireless IoT devices based on Sub-GHz and 2.4 GHz protocols like Wi-SUN, Amazon Sidewalk, Wireless M-BUS, Silicon Labs CONNECT, Proprietary protocols, and Bluetooth Low Energy.
MRSP $179.00
Add to Cart
Learn More

EFR32xG28 2.4 GHz BLE and +20 dBm Radio Board

The EFR32xG28 2.4 GHz BLE and +20 dBm Radio Board is designed work with the STK main board to support the development of Wireless IoT devices based on Sub-GHz and 2.4 GHz BLE wireless protocols for Proprietary, Connect, Z-wave, Wi-SUN and Bluetooth Low Energy.

EFR32xG28 2.4 GHz BLE and +20 dBm Radio Board

The EFR32xG28 2.4 GHz BLE and +20 dBm Radio Board is designed work with the STK main board to support the development of Wireless IoT devices based on Sub-GHz and 2.4 GHz BLE wireless protocols for Proprietary, Connect, Z-wave, Wi-SUN and Bluetooth Low Energy.
MSRP $40.00
Add to Cart
Learn More

EFR32xG28 Explorer Kit

The EFR32xG28 Explorer Kit is a small form factor development and evaluation platform based on the EFR32xG28 System-on-Chip. The EFR32xG28 Explorer Kit is focused on rapid prototyping and concept creation of IoT applications for Sub-GHz and Bluetooth LE like Wi-SUN, Amazon Sidewalk, Wireless M-Bus, and proprietary networks.

EFR32xG28 Explorer Kit

The EFR32xG28 Explorer Kit is a small form factor development and evaluation platform based on the EFR32xG28 System-on-Chip. The EFR32xG28 Explorer Kit is focused on rapid prototyping and concept creation of IoT applications for Sub-GHz and Bluetooth LE like Wi-SUN, Amazon Sidewalk, Wireless M-Bus, and proprietary networks.
MSRP $34.00
Add to Cart
Learn More

EFR32xG28 Pro Kit +20 dBm

The EFR32xG28 +20 dBm Pro Kit is designed to support the development of Wireless IoT devices based on Sub-GHz and 2.4 GHz protocols like Wi-SUN, Amazon Sidewalk, Wireless M-BUS, Silicon Labs CONNECT, Proprietary protocols, and Bluetooth Low Energy.

EFR32xG28 Pro Kit +20 dBm

The EFR32xG28 +20 dBm Pro Kit is designed to support the development of Wireless IoT devices based on Sub-GHz and 2.4 GHz protocols like Wi-SUN, Amazon Sidewalk, Wireless M-BUS, Silicon Labs CONNECT, Proprietary protocols, and Bluetooth Low Energy.
MRSP $179.00
Add to Cart
Learn More

EFR32xG28 2.4 GHz BLE and +20 dBm Radio Board

The EFR32xG28 2.4 GHz BLE and +20 dBm Radio Board is designed work with the STK main board to support the development of Wireless IoT devices based on Sub-GHz and 2.4 GHz BLE wireless protocols for Proprietary, Connect, Z-wave, Wi-SUN and Bluetooth Low Energy.

EFR32xG28 2.4 GHz BLE and +20 dBm Radio Board

The EFR32xG28 2.4 GHz BLE and +20 dBm Radio Board is designed work with the STK main board to support the development of Wireless IoT devices based on Sub-GHz and 2.4 GHz BLE wireless protocols for Proprietary, Connect, Z-wave, Wi-SUN and Bluetooth Low Energy.
MSRP $40.00
Add to Cart
Learn More

EFR32xG28 Explorer Kit

The EFR32xG28 Explorer Kit is a small form factor development and evaluation platform based on the EFR32xG28 System-on-Chip. The EFR32xG28 Explorer Kit is focused on rapid prototyping and concept creation of IoT applications for Sub-GHz and Bluetooth LE like Wi-SUN, Amazon Sidewalk, Wireless M-Bus, and proprietary networks.

EFR32xG28 Explorer Kit

The EFR32xG28 Explorer Kit is a small form factor development and evaluation platform based on the EFR32xG28 System-on-Chip. The EFR32xG28 Explorer Kit is focused on rapid prototyping and concept creation of IoT applications for Sub-GHz and Bluetooth LE like Wi-SUN, Amazon Sidewalk, Wireless M-Bus, and proprietary networks.
MSRP $34.00
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 EFR32SG28B320F1024IM48 until at least August 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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