SIMPLELINK_CC2640R2_SDK Release Notes

Table of Contents


The SimpleLink™ CC2640R2 Software Development Kit (SDK) delivers components that enable engineers to develop applications on the Texas Instruments SimpleLink Bluetooth® low energy CC2640R2F wireless MCU. This powerful software toolkit provides a cohesive and consistent software experience for all SimpleLink CC2640R2F users by packaging essential software components such as the Bluetooth low energy (BLE) protocol stack, TI-RTOS kernel and TI Drivers in one easy-to-use software package along with exhaustive documentation.

This SimpleLink SDK enables development of single-mode BLE applications with either a Bluetooth 5 protocol stack (BLE5-Stack) supporting increased bandwidth to 2 Mbps (2x throughput as compared to Bluetooth 4.2) along with a demonstration of the LE Coded PHY feature for longer range data transmission, or a memory-optimized Bluetooth 4.2 protocol stack (BLE-Stack). Both protocol stacks are built on a common coreSDK which enables seamless application code portability across the SimpleLink MCU Platform. For a detailed description of the features available in each protocol stack, refer to the BLE5-Stack and BLE-Stack release notes in the Documentation Overview below.

As with all Bluetooth core specifications that support the low energy (LE) feature, devices implementing the LE feature of Bluetooth 5 are backward compatible with Bluetooth 4.2, 4.1 and 4.0 LE capable devices.

This is version of the SimpleLink CC2640R2 SDK.


Refer to the Documentation Overview below for developing Bluetooth low energy and other MCU applications with this SDK. Note that Bluetooth 4.2 (BLE-Stack) and Bluetooth 5 (BLE5-Stack) components have separate documentation.

What’s New

Upgrade and Compatibility Information

If you are migrating from an existing TI BLE-Stack SDK, please review the CC2640-to-CC2640R2 Migration Guide

Operating System Support

SimpleLink CC2640R2 SDK is supported on the Microsoft Windows® 7 SP1 or later build platform


SimpleLink CC2640R2 SDK was built & tested on a Windows host platform using the following Integrated Development Environments (IDEs) and components. Using an IDE or toolchain version not listed below may result in compatibility issues with this SDK release.

Device Support

Development Board Support


This product follows a version format,, where:

Technical Support and Product Updates