SWRS226B February 2020 – May 2021 CC3230S , CC3230SF
PRODUCTION DATA
All unused pin should be configured as stated in Table 7-5.
FUNCTION | SIGNAL DESCRIPTION | PIN NUMBER | ACCEPTABLE PRACTICE | PREFERRED PRACTICE |
---|---|---|---|---|
GPIO | General-purpose input or output | Wake up I/O source should not be floating during hibernate. All the I/O pins will float while in Hibernate and Reset states. Ensure pullup and pulldown resistors are available on board to maintain the state of the I/O. Leave unused GPIOs as NC | ||
No Connect | NC | 26, 27, 28 | Unused pin, leave as NC. | Unused pin, leave as NC |
SOP | Configuration sense-on-power | Ensure pulldown resistors are available on unused SOP pins | 100-kΩ Pull down resistor on SOP0 and SOP1. 2.7-kΩ pull down on SOP2 | |
Reset | RESET input for the device | Never leave the reset pin floating | ||
Clock | RTC_XTAL_N | When using an external oscillator, add a 100-kΩ pullup resistor to VIO | ||
WLAN_XTAL_N | When using an external oscillator, connect to ground if unused | |||
JTAG | JTAG interface | Leave as NC if unused |