SWRU637 March   2025

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   Applications
  6.   6
  7. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  8. 2Hardware
    1. 2.1 Power Requirements
    2. 2.2 Temperature Range
    3. 2.3 Energy Trace
    4. 2.4 Hardware and Debug Setup
      1. 2.4.1 Using a LaunchPad XDS110 Debug Probe
      2. 2.4.2 Using a Generic XDS110 Debug Probe, Including a Separate LaunchPad
    5. 2.5 BoosterPack Connector Pinout
    6. 2.6 XDS110 Interface Connector
    7. 2.7 Debug Interface Connector
    8. 2.8 Jumper Information
    9. 2.9 Push Buttons
  9. 3Advanced use of the LaunchPad Hardware
    1. 3.1 External Antenna
    2. 3.2 XDS110 GPIOs
    3. 3.3 Reset Selection on BoosterPack Connector
    4. 3.4 I2C Pullup Resistors
  10. 4Software
    1. 4.1 Getting Started
    2. 4.2 Out of Box Demo
  11. 5Hardware Design Files
    1. 5.1 Reference Schematics
    2. 5.2 PCB Layouts
    3. 5.3 Bill of Materials (BOM)
  12. 6Compliance Information
    1. 6.1 CE Compliance
    2. 6.2 REACH Compliance
    3. 6.3 Waste Electrical and Electronic Equipment (WEEE) Compliance
  13. 7Additional Information
    1. 7.1 Trademarks
  14. 8References

2.1 Power Requirements

The LaunchPad is designed to be powered from the LaunchPad EM Debug Probe via the LP-EM Debug connector, or from an external power supply connected to the GND and the 3V3 pin header. There is also support for 5V on the pin header, but this is not required or used for LaunchPad operation. When powering from the LaunchPad EM Debug Probe, the device supply voltage is fixed at 3.3V. When powering externally, care must be taken to keep the board voltage within its operating range (1.8V to 3.6V).

Note: even though the CC2340R53 supply voltage ranges from 1.8V to 3.8V, the maximum voltage of the LP-EM-CC2340R53 is limited by the XDS110 level shifters at 3.6V.

Additional details about how to power the LaunchPad are shown in the Hardware and Debug Setup section below.