TLSR827x Series



Telink’s new generation TLSR827x series presents state of the art ultra low power (ULP) concurrent multi-protocol IoT solution at ISM 2.4GHz band. It has protocol full support for Bluetooth® LE 5.1. It also supports both Telink proprietary and Bluetooth® SIG Mesh, Zigbee, RF4CE, HomeKit, Thread, and 2.4GHz proprietary.

The TLSR827x is built around a 32-bit MCU running up to 48MHz. It has 14bit ADC with PGA, AMIC, DMIC, stereo audio output, 6-channel PWM, one quadrature decoder (QDEC), and flexible GPIO interfaces.

Compared with TLSR825x, the TLSR827x series has a few salient features: Allows flexible antenna element switch to fully support Bluetooth® LE 5.1, RF Inductor integrated enabling BOM Reduction, Audio Enhancement, WiFi PTA hardware interface.


Part Number SRAM Flash Protocol Package Size Test Report
TLSR8278F1KET48 64KB 1MB Multi-mode, Bluetooth LE5.1, AoA/AoD QFN 7x7, 48 pins RoHS
TLSR8273F512ET48 64KB 512KB Bluetooth LE5.1+SIG Mesh+2.4G, AoA/AoD, RF4CE QFN 7x7, 48 pins RoHS
TLSR8271F512ET32 32KB 512KB Bluetooth LE5.1+2.4G+Telink Mesh, AoA/AoD QFN 5x5, 32 pins RoHS
TLSR8270F512ET48 32KB 512KB Bluetooth LE5.1+2.4G+Telink Mesh, AoA/AoD QFN 7x7, 48 pins RoHS

* For other packages options, please contact Telink.


Download TLSR8278 Datasheet

Download TLSR8273 Datasheet

Download TLSR8271 Datasheet

Download TLSR8270 Datasheet

Software Development Kit

SDK Name
Quick Guide
SDK Download
SDK Development Manual
Bluetooth LE Single Connection TLSR8278/8273/8271 SDK V3.4.2.1_Patch_0004 Development Manual
Development Manual (CN)
Bluetooth LE Multi Connection TLSR8278/8273 SDK V4.0.1.2_Patch_0001 Developer Handbook
Developer Handbook (CN)
Bluetooth Mesh TLSR8278/8273 Quick Guide SDK V3.3.3.5 Development Manual c7c0e83152a3323d55de2b8c9545db03107558535a61b2b99fb70d7b70a2a095
Telink Mesh TLSR8278/8273/8271 Quick Guide SDK V1.S.0 Development Manual 5ab0d040efdce2b4a902efcf871b4b3c05534f87b75f4382684dac88db6dccf8
AoA/AoD TLSR8278/8273/8271 SDK V1.0.0 Position Solution Introduction
Position Solution Introduction (CN)
2.4G Proprietary TLSR8278/8273/8271 SDK V3.3.0 85352c0f8da91d09956cc0c5c096e9ff602106e01f6c3f9df3c557c3a4505c2b
RF4CE TLSR8278/8273 Quick Guide SDK V2.4.0.0
PC Tool
RF4CE SDK Guide d08727727da3c173f999dcb87d29d91e999965449e6d1663059f6437cd6a04be
Zigbee TLSR8278 Quick Guide SDK V3.6.8.0 Development Manual
Development Manual (CN)
802.15.4 TLSR8278/8273/8271 SDK V1.3.0.1 802.15.4 SDK User Guide
802.15.4 SDK User Guide (CN)
Driver TLSR8278/8273/8271 SDK V1.4.0 c6e59f2cd5a933a734ed75cfcf54c6fda8f92213032d6885b6a0be11734ff2a5

Development Kit and Application Boards

TLSR827X Hardware Design Guide

S/N Product Name Category Design Document
TLSR8278DK48D TLSR8278 Development Board Development Board Reference Design
TLSR8278DG48D TLSR8278 Dongle Application Board Reference Design
TLSR8278ARC48D TLSR8278 Audio RCU Application Board FR1 Reference Design
FR4 Reference Design
TLSR8278IP48D TLSR8278 Indoor Positioning Board Application Board Reference Design
TLSR827XEL48D TLSR8278 ESL Board Application Board Reference Design
TLSR8278DK48D-KIT TLSR8278 Generic Starter Kit Development Kit
TLSR8278ARC48D-KIT TLSR8278 Audio RCU Starter Kit Development Kit Hardware Guide
TLSR8278IP48D-KIT TLSR8278 Indoor Positioning Starter Kit Development Kit Solution


* The TLSR8278 Generic Starter Kit can be purchased online via Mouser or Taobao.
* Other Development Kits can also be obtained by contacting Telink.