S140SoftDevice

Bluetooth 5 Central and Peripheral protocol stack

SoftDevice S140 is a feature complete Bluetooth 5 qualified protocol stack for the nRF52840 SoC. It supports up to 20 concurrent links in all roles. It supports Bluetooth 5 features: 2 Mbps, Long Range, Advertising Extensions and channel selection algorithm #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, L2CAP, and Link Layer. Both GATT Server and Client are supported. The broad feature set also includes Privacy 1.2, LE Data Length Extension (DLE), configurable ATT MTU, L2CAP connection-oriented channels and LE Secure Connections.

Key Features
Bluetooth 5
2 Mbps
Bluetooth 5
Long Range
Bluetooth 5
Advertising Extensions
Bluetooth 5
CSA #2
20 concurrent
links
All roles
(Ce+Pe+Br+Ob)
LE
Secure Connections
DLE
Timeslot
API

nRF52 SoftDevices

Bluetooth LE & ANT

nRF52 Series SoCs

Compatible with SoftDevice S140

nRF52840 SoC

High-end nRF52 Series multiprotocol SoC for high-performance, feature-rich applications with best-in-class security.

64 MHz Cortex-M4F
1 MB Flash, 256 KB RAM
2.4 GHz Transceiver
2 Mbps, 1 Mbps, Long Range
Bluetooth 5, Bluetooth mesh
ANT, 802.15.4, Thread, Zigbee
+8 dBm TX Power
128-bit AES CCM, ARM CryptoCell
UART, SPI, TWI, PDM, I2S, QSPI
PWM
12-bit ADC
NFC-A
USB 2.0

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