Texas Instruments SimpleLink Wi-Fi BoosterPack CC3120, User Manual

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Additional Information
19 SWRU457A – February 2017 – Revised August 2018
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Copyright © 2017–2018, Texas Instruments Incorporated
CC3120 SimpleLink™ Wi-Fi
®
BoosterPack™ Plug-In Module and IoT
Solution
5.3 Hardware Change Log
Table 10 lists the hardware change log.
Table 10. Hardware Change Log
PCB Revision Description
Rev A First release
5.4 Known Limitations
5.4.1 Enabling Low-Power Measurement From the LaunchPad Kit
When the CC3120BOOST is powered by a LaunchPad kit, the 3.3-V supply from the LaunchPad is used
to power the CC3120 BoosterPack module, as well as other parts on the board including the serial flash,
LEDs, and more. The total power drawn into the 3.3-V supply would be several mA in shutdown or
hibernate mode. To measure the low-power numbers, users are advised to remove the LEDs (D1, D5, and
D6 on the board). Similarly, the shutdown mode would leak about 33 µA into the pullup resistor (R12) on
the nRESET pin. This pullup resistor also must be removed to measure the total current below 1 µA in
shutdown mode. In hibernate mode, pullup resistor R296 must be removed to enable the lowest current
state.