General Description

The TLSR8261F128 is Telink-developed BLE SoC solution which is completely RoHS-compliant and 100% lead (Pb)-free.

It’s compatible with Bluetooth standard and supports BLE specification up to version 4.2. It allows easy connectivity with Bluetooth Smart Ready mobile phones, tablets, laptops, which supports BLE slave and master mode operation, including broadcast, encryption, connection updates, and channel map updates.

The TLSR8261F128 is designed to offer high integration, ultra-low power application capabilities. It integrates strong 32-bit MCU, BLE/2.4G Radio, 16KB SRAM, 128KB internal Flash, 14bit ADC with PGA, 6-channel PWM (2-channel IR), one quadrature decoder (QDEC), flexible interfaces, multi-stage power management module and nearly all the peripherals needed for Bluetooth Low Energy applications development.

Target Applications

  • Smartphone and tablet accessories
  • Remote Control and 3D glasses
  • Sports and fitness tracking
  • Wearable devices

Key Features

General features

  • 32bit high performance MCU, up to 48MHz
  • Program memory: internal 128KB Flash
  • Data memory: 16KB on-chip SRAM
  • 12M/16MHz&32.768KHz Crystal and 32KHz/32MHz embedded RC oscillator
  • A rich set of I/Os:
  1. Up to 14 GPIOs
  2. I2C, USB, Debug Interface, UART with hardware flow control.
  • Up to 6 channels of PWM, 2-channel IR
  • Sensor:
  1. 14bit ADC with PGA
  2. Temperature sensor
  • One quadrature decoder
  • Embedded hardware AES
  • Compatible with USB2.0 Full speed mode
  • Operating temperature: -40℃~+85℃ temperature range
  • Package: TLSR8261F128ET24, 24-pin QFN 4x4mm

RF features

  • BLE/2.4GHz RF transceiver embedded, working in worldwide 2.4GHz ISM band
  • Bluetooth 4.2 Compliant, 1Mbps and 2Mbps LE Enhancement FIPD version
  • Rx Sensitivity: -92dBm@BLE 1Mbps
  • Tx output power: +7dBm
  • Single-pin antenna interface
  • RSSI monitoring

Features of power management module

  • Embedded LDO
  • Battery monitor: Supports low battery detection
  • Power supply: 1.9V~3.6V
  • Multiple stage power management to minimize power consumption
  1. Receiver mode current: 12mA
  2. Transmitter mode current: 15mA @0dBm power, 22mA @max power
  3. Suspend mode current: 10uA (IO wakeup), 12uA (Timer wakeup)
  4. Deep sleep mode current: 1.7uA

Flash features

  • Total 128KB (1Mbits)
  • Flexible architecture: 4KB per Sector, 64KB/32KB per block
  • Up to 256 Bytes per programmable page
  • Write protect all or portions of memory
  • Sector erase (4KB)
  • Block erase (32KB/64KB)
  • Cycle Endurance: 100,000 program/erases
  • Data Retention: typical 20-year retention

Development tools

A full set of development tools for the BLE SoC are provided, which include EVB, reference design and SDK for customers to perform evaluation, quick application prototyping and firmware development.


E2_Product Brief