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EFR32SG28 Common Specs
Low Power Wireless System-on-Chip
- ARM Cortex®-M33 (78 MHz) with DSP and FPU
- 1024 kB flash program memory
- 256 kB RAM data memory
- Dual-band radio operationn
Low Energy Consumption
- 4.2 mA RX current at 915 MHz (50 kbps 2GFSK)
- 5.2 mA RX current at 2.4 GHz, 1 Mbps BLE
- 81.8 mA TX current @ 14 dBm output power at 915 MHz
- 12.3 mA TX current @ 0 dBm output power, 2.4 GHz
- 23.2 mA TX current @ 10 dBm output power, 2.4 GHz
- 33 μA/MHz in Active Mode (EM0) at 39.0 MHz
- 2.8 μA EM2 DeepSleep current (256 kB RAM retention and RTC running from LFXO)
- Preamble Sense Mode (PSM) low duty-cycle listen
Wide Selection of MCU peripherals
- 16-bit Analog to Digital Converter (ADC)
- 2 × Analog Comparator (ACMP)
- 2 x Digital to Analog Converter (VDAC)
- Low-Energy Sensor Interface (LESENSE)
- Up to 49 General Purpose I/O pins
- 8 Channel DMA Controller
- 12 Channel Peripheral Reflex System (PRS)
- 4 × 16-bit Timer/Counter with 3 Compare/Capture/PWM channels
- 1 × 32-bit Timer/Counter with 3 Compare/Capture/PWM channels
- 32-bit Real Time Counter
- 24-bit Low Energy Timer for waveform generation
- 16-bit Pulse Counter with asynchronous operation (PCNT)
- 2 × Watchdog Timer
- 3 × Enhanced Universal Synchronous/Asynchronous Receiver/Transmitter (UART/SPI)
- 1 x Universal Synchronous/Asynchronous Receiver/Transmitter (UART/SPI/I2S)
- 2 × I2C interface with SMBus support
- Integrated low-energy LCD controller supporting up to 192 segments
- Keypad scanner supporting up to 6 x 8 matrix (KEYSCAN)
- Die temperature sensor
Protocol Support
- Amazon Sidewalk
- Bluetooth Low Energy
HIgh Performance RF
- TX power up to +20 dBm
- -108.6 dBm sensitivity @ 50 kbps, 915 MHz 2GFSK
Wide Operating Range
- 1.71 to 3.8 V single power supply
- -40 °C to +125 °C
Packages
- QFN48 6 mm x 6 mm x 0.85 mm
- QFN68 8 mm x 8 mm x 0.85 mm
Secure Vault
- Secure Boot with Root of Trust and Secure Loader (RTSL)
- Hardware Cryptographic Acceleration with DPA Countermeasuresfor AES128/256, SHA-1, SHA-2 (up to 256-bit)
- ECC (up to 256-bit) ECDSA, ECDH, and J-PAKE
- True Random Number Generator (TRNG)
- ARM® TrustZone®
- Secure Debug Unlock
- Secure Attestation
- Secure Key Management
- Secure Key Storage
- Anti-Tamper
Find the Right EFR32SG28 Device
Select Columns
| Part Number | Pricing | Integrated MCU | MCU Core | Flash | RAM | Communications | Max Output Power (dBm) | Proprietary 2.4 GHz | Proprietary Sub-GHz | Multiprotocol | Security | GPIO | Cap Sense | Temp Sensor | Timers (16-bit) | RTC | Comparators | Temperature Range ºC | Package Type | Package Size (mm) | Debug Interface |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1K @ US$4.54 | ARM Cortex-M33 | 1024 | 256 | 2 x I²C 5 x SPI | 20 | AES-128 AES-256 ECC SHA-1 SHA-2 | 31 | 4 | 2 | -40 125 | QFN48 | 6x6 | JTAG, SW, ETM | ||||||||
| 1K @ US$4.76 | ARM Cortex-M33 | 1024 | 256 | 2 x I²C 5 x SPI | 20 | AES-128 AES-256 ECC SHA-1 SHA-2 | 49 | 4 | 2 | -40 125 | QFN68 | 8x8 | JTAG, SW, ETM | ||||||||
| 1K @ US$4.85 | ARM Cortex-M33 | 1024 | 256 | 2 x I²C 5 x SPI | 20 | AES-128 AES-256 ECC SHA-1 SHA-2 | 31 | 4 | 2 | -40 125 | QFN48 | 6x6 | JTAG, SW, ETM | ||||||||
| 1K @ US$5.07 | ARM Cortex-M33 | 1024 | 256 | 2 x I²C 5 x SPI | 20 | AES-128 AES-256 ECC SHA-1 SHA-2 | 49 | 4 | 2 | -40 125 | QFN68 | 8x8 | JTAG, SW, ETM |
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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.
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.
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.
Works With 2024
Where Innovation Meets Implementation
Works With, the premier Silicon Labs developer event of the year, is back! This year will feature three regional, in-person developer events in San Jose, Hyderabad and Shanghai. Participants will experience a full day of training sessions and dedicated technology tracks, as well as a demo lab and networking opportunities. The agenda for these in-person events will also include engineer-led, hands-on workshops where participants will learn practical ways to accelerate the development of their projects with the latest tools, techniques, and resources.
We'll wrap things up with our Works With Virtual training sessions, keeping you up to date on the latest technology trends, all from the comfort of your remote location.