CC3220MOD_017 Datasheet, PDF (33/100 Pages) Texas Instruments – SimpleLink Wi-Fi CERTIFIED Wireless MCU Modules

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CC3220MOD, CC3220MODA
SWRS206B – MARCH 2017 – REVISED AUGUST 2017
4.6 Pad State After Application of Power to Chip, but Before Reset Release
When a stable power is applied to the CC3220MODx or CC3220MODAx module for the first time or when
supply voltage is restored to the proper value following a prior period with supply voltage below 1.5 V, the
level of the digital pads are undefined in the period starting from the release of nRESET and until the
DIG_DCDC of the CC3220x chip powers up. This period is less than approximately 10 ms. During this
period, pads can be internally pulled weakly in either direction. If a certain set of pins are required to have
a definite value during this pre-reset period, an appropriate pullup or pulldown must be used at the board
level. The recommended value of these external pullup or pulldown resistors is 2.7 kΩ.
Copyright © 2017, Texas Instruments Incorporated
Terminal Configuration and Functions
33
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