S122 SoftDevice

Memory-optimized Central-only Bluetooth Low Energy protocol stack

SoftDevice S122 is a memory-optimized Bluetooth® Low Energy protocol stack for the nRF52811, nRF52820 and nRF52833 System-on-Chips (SoCs). Up to 8 connections as a Central can be run concurrently with an Observer. It is Bluetooth 5.2 qualified and supports the following Bluetooth features: high-throughput 2 Mbps and channel selection algorithm 2 (CSA #2). The number of connections and bandwidth per connection are configurable, offering memory and performance optimization.

It is a complete stack with GAP, GATT, ATT, SM and Link Layer. Both GATT Server and Client are supported. The broad feature set also includes Privacy 1.2, configurable ATT MTU and LE Secure Connections.

Key features

Bluetooth 5.2 qualified

High-throughput 2 Mbps

CSA #2

LE Secure Connections

Privacy 1.2

Configurable ATT Table

Configurable ATT MTU

Custom UUID

Concurrent multiprotocol support

All nRF52 Series protocol stacks

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Related applications

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