Multiprotocol multi-band IoT connectivity in a 7x7mm SoC

Multiprotocol multi-band IoT connectivity in a 7x7mm SoC

New Products |
By Julien Happich

Wireless Gecko SoCs support zigbee and Thread mesh networking, Bluetooth 5 and proprietary wireless protocols. Silicon Labs has optimized its wireless protocol stack architecture to enable efficient switching between different network protocols. For example, device makers can now use a single chip to commission and configure devices over Bluetooth with a smartphone, and then join a zigbee or Thread mesh network to connect to dozens or even hundreds of end nodes.

The chip delivers up to +19dBm of output power and eliminates the need for an external power amplifier. EFR32xG12 SoCs also offer exceptional sensitivity in the 2.4 GHz band (-102.7 dBm for zigbee and Thread and -95 dBm for Bluetooth low energy) as well as improved sub-GHz performance for applications using proprietary protocols. The chips feature a 2 Mbps Bluetooth PHY, providing ample throughput for applications running a Bluetooth 5-compliant stack. The Bluetooth 5 standard enables four times the range, twice the speed, 800 percent greater broadcasting capacity and improved co-existence with other wireless IoT protocols.

To help secure the IoT, the EFR32xG12 SoCs include a second on-chip security accelerator dedicated to the multiprotocol radio and a NIST-certified true random number generator (TRNG). This additional hardware cryptography block runs the latest security algorithms with higher performance and lower power than conventional software implementations.

The SoCs offer four times more flash memory (up to 1024 kB with a dual-bank architecture) and eight times more RAM (up to 256 kB) than previous-generation Wireless Gecko devices. An autonomous capacitive sensing controller provides direct support for cap-touch interfaces in IoT products, without the cost and complexity of adding external controllers.

The chips are available in sample and production quantities in 7- x 7-mm QFN48 packages, as well as 65-GPIO 7- x 7-mm BGA options.

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