Telink TL3228: Energy-efficient Dual-core RISC-V Wireless MCU with Bluetooth 6.0, 802.15.4, and 2.4 GHz Proprietary Support
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Telink TL3228: Energy-efficient Dual-core RISC-V Wireless MCU with Bluetooth 6.0, 802.15.4, and 2.4 GHz Proprietary Support

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TL3228

Telink has introduced the TL322x wireless MCU series, beginning with the TL3228, which boasts a 192 MHz dual-core RISC-V MCU. It supports Bluetooth 6.0, Matter, Thread, Zigbee, RF4CE, and proprietary 2.4GHz protocols for various applications including smart home systems, asset tracking, and gaming accessories.

This chip features modern Bluetooth capabilities such as Channel Sounding, AoA/AoD, and LE Audio, alongside Telink’s proprietary HDT technology, offering up to 6 Mbps data rates with ultra-low latency.

Telink TL3228 Block Diagram

Specifications for the Telink TL3228 are:

  • Dual-core CPU
    • 32-bit Andes D25F RISC-V core with FPU up to 192 MHz
    • 32-bit Andes N22 RISC-V core
  • Memory – 384 KB SRAM
  • Storage – 2.5 MB of NVM (Flash + RRAM)
  • Connectivity
    • Bluetooth 6.0
      • Channel Sounding
      • Mesh Networking
      • Bluetooth LE
      • AoA/AoD location services
    • 802.15.4 radio for Zigbee, Thread, Matter, RF4CE
    • 2.4GHz Proprietary
    • 2.4GHz radio data rates – 1Mbps, 2Mbps, 4Mbps, 6Mbps; Bluetooth LE PHY: LE 2M, LE Coded
    • Bluetooth LE Multiple Connections – 4x Central, 4x Peripheral
    • Tx Power – Up to 10 dBm @ Bluetooth LE mode
    • Rx sensitivity
      • -99 dBm @ Bluetooth LE 1 Mbps
      • -96 dBm @ Bluetooth LE 2 Mbps
      • -103 dBm @ 802.15.4
  • Peripherals
    • Up to 64x GPIO
    • Up to 7x SPI, 2x I2C, 2x I3C, 5x UART, 24x PWM,
    • USB – USB-HS
    • Audio – 1x I2S, 1x AMIC, 2x DMIC
    • Up to 2x QDEC
    • 2x CAN-FD, 2x LIN
    • Analog – 2x 12-bit SAR ADC, 1x 16-bit SD-ADC
  • Security – Secure Boot, firmware encryption, PKE, TRNG, SKE, HASH_LP
  • Supply Voltage – 1.7 to 4.5V, 4.5 to 5.5V
  • Power Consumption
    • 0.7 µA in deep sleep mode without SRAM retention
    • 3.8 mA (DCDC) in Rx mode
    • 4.8 mA in Tx mode (0 dBm)
  • Packages
    • QFN80 (TL3228A)
    • QFN56 (TL3228B)
    • QFN40 (TL3228C)
    • WLCSP59 (TL3228W)

Telink offers the Bluetooth LE Multi Connection and Platform SDKs on GitHub, along with the Telink IoT Studio IDE, compatible with Windows and Linux, for development tasks like firmware compilation, downloading, and debugging.

There are two development boards for the TL3228: the open-source TL322X EV board, meant

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