SWRS227C March 2020 – December 2024 CC3130
PRODUCTION DATA
All unused pin should be configured as stated in Table 6-3.
FUNCTION | SIGNAL DESCRIPTION | PIN NUMBER | ACCEPTABLE PRACTICE | PREFERRED PRACTICE |
---|---|---|---|---|
DIO | Digital 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 DIOs as NC. | ||
No Connect | NC | 26, 29, 30 | Unused pin, leave as NC. | Unused pin, leave as NC. |
SOP | Configuration sense-on-power | Ensure pulldown resistors are available on unused SOP pins. | 100kΩ pulldown resistor on SOP0 and SOP1. 2.7kΩ pulldown 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 100kΩ pullup resistor to VIO. | ||
WLAN_XTAL_N | When using an external oscillator, connect to ground if unused. |