Spresense Main Board - CXD5602 Microcomputer for IoT Application


The Spresense project consists of an Arduino compatible board with Sony’s high-performance CXD5602 micro-controller. The CXD5602 has built-in GPS and high-resolution audio capabilities.

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Spresense is a compact development board based on Sony’s power-efficient multicore microcontroller CXD5602. It allows developers to create IoT applications in a very short time and is supported by the Arduino IDE as well as the more advanced NuttX based SDK.

  • Integrated GPS - The embedded GNSS with support for GPS, QZSS, and GLONASS enables applications where tracking is required.
  • Hi-res audio output and multi-mic inputs - Advanced 192kHz/24 bit audio codec and amplifier for audio output, and support for up to 8 mic input channels.
  • Multicore microcontroller - Spresense is powered by Sony's CXD5602 microcontroller (ARM® Cortex®-M4F × 6 cores), with a clock speed of 156 MHz.

The Spresense main board has the following features.

  • Sony’s CXD5602 Processor

  • 8 MB Flash memory

  • PCB with small footprint

  • Dedicated camera connector

  • GNSS (GPS) antenna

  • Pins and LEDs

    • Multiple GPIO (UART, SPI, I2C, I2S)

    • 2 ADC channels

    • Application LED x 4 (Green)

    • Power LED (Blue)

    • USB serial port

CXD5602 specifications

High-precision Positioning Features

  • Ultra-low power consumption
  • Multiple GNSS systems supported:
    GPS, GLONASS, SBAS, Galileo, and Beidu

Advanced High-Resolution Audio features

  • 192 kHz/24 bit High-Resolution Audio Codec
  • 192 kHz A/D converter
  • 8 channel microphone inputs (for digital microphones)
  • Full digital amplifier with BTL stereo output

Extensive computing power

  • Hexa-core ARM® Cortex®-M4F
  • FD-SOI technology for low-power processing
  • ASMP framework for inter-CPU communication

overview hardware mainboard signal


[PWR] Power LED

Power LED. Emits blue light when power is supplied.

[RST] Reset button

Reset button.

[LED0] to [LED3]

Four user controllable green LEDs.


Micro USB Type-B connector.


B-2-B 100-pin connector to interface to additional boards. This connector is on the underside.


Camera connector.

[BR] Boot recovery button

This is used when restoring to the factory reset state. Only for recovery, normally not needed.

1 x Spresense main board


HSCODE 8543709990
USHSCODE 8471500150

This section outlines the Spresense hardware and software in the following two chapters:

To start programming the Spresense directly see the Getting started guides for the two available SDKs:

For further information on CXD5602, please refer to the following.

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