CSR1010, CSRmesh, and Qualcomm Bluetooth Low Energy are products of Qualcomm Technologies International, Ltd.

CSR1010 Chipset

CSR1010 QFN is a Qualcomm® Bluetooth® Low Energy platform device. Qualcomm Bluetooth Low Energy enables ultra low-power connectivity and basic data transfer for applications previously limited by the power consumption, size constraints and complexity of other wireless standards. CSR1010 QFN provides everything required to create a Bluetooth Low Energy product with RF, baseband, MCU, qualified Bluetooth v4.1 specification stack and customer application running on a single IC.


CSRmesh™ technology is designed to connect multiple devices using Bluetooth Low Energy, extend the range of Bluetooth, and turn surrounding devices into a mesh network for the Internet of Things.

CSR1010 Specs


Bluetooth Version

  • Bluetooth 4.1

Bluetooth Technology

  • Bluetooth Low Energy
  • CSRmesh™ technology

Maximum Output Power

  • Up to +9dBm

Bluetooth Radio

  • -93dBm receiver sensitivity
  • 50Ω


MCU Bit Architecture

  • 16-bit

MCU Clock Speed

  • 16MHz MCU

Power Management

Maximum Input Voltage

  • 4.4V



  • 64KB RAM


  • 64KB ROM


Supported Interfaces

  • UART
  • SPI
  • I²C


Analog I/O

  • 3

General Purpose IOs

  • 12


  • 4

Quadrature Decoder

  • 2 Hardware Quadrature Decoder

Operating Temperature Range

Maximum Temperature

  • 85°C

Minimum Temperature

  • -40°C


Package Type

  • QFN
  • 5 x 5 x 0.6mm 0.5mm pitch QFN

Package Size

  • 0.5mm Pitch

    CSR101x Product Family on Qualcomm Developer Network (QDN).

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