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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.