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Lierda Technology

Lierda Technology low-power Bluetooth module LSD4BT-K53ASTD001

The K53 series low-power Bluetooth module is a Bluetooth module developed based on the Telink low-power Bluetooth SOC TLSR8253 chip. The module adopts stamp-type and plug-in interfaces. It is exquisite and compact, with all ports lead out. It is easy to use and helps users avoid bypassing problems. By eliminating the tedious design, development and production of radio frequency hardware, users can easily develop Bluetooth applications and shorten the research and development cycle.

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Merchant qualification:

Lierda Technology is a high-tech enterprise in key national fields. It has been committed to the technology and market promotion of the IoT embedded industry for more than ten years and has strong technical strength. with profound backgrounds and rich practical experience in embedded micro-control technology, radio frequency hardware R&D, communications, and networking technologies.

Product Introduction&Application Fields

product details

1. Working frequency band

  • Working frequency band 2402-2480MHz

2.Low power consumption

  • Supports 7V to 3.6V power supply

  • Transmit current ≤20mA (10dBm power configuration)

  • Receiving current ≤7.5mA (whole machine current)

  • 400nA sleep current (SRAM is not saved)

3.High link budget

  • Sensitivity-96dBm (1Mbps, PER<30.8%)

  • Transmit power 10dBm

4.Memory resources

  • 512kB Flash (actual usable capacity is less than 512kB)

  • 48kB on-chip SRAM, 32kB of which can be saved in hibernation

5.Compatibility

  • Designed with side plug-in and stamp hole-compatible interface methods

6.BLE function

  • Support BLE 5.0

  • Support 125Kbps, 500Kbps, 1Mbps, 2Mbps

7.Mesh protocol

  • Bluetooth SIG Mesh support

  • Telink proprietary Mesh support

8. Communication interface

  • 2-way PWM 4-way GPIO port UART (pin multiplexing)

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