AM335x
(ZCZ Package)
RTC_XTALIN
RTC_XTALOUT
N/C
VSS_RTC
N/C
Copyright © 2016, Texas Instruments Incorporated
AM335x
(ZCE Package)
RTC_XTALIN
RTC_XTALOUT
N/C
N/C
Copyright © 2016, Texas Instruments Incorporated
114
AM3359, AM3358, AM3357, AM3356, AM3354, AM3352, AM3351
SPRS717J – OCTOBER 2011 – REVISED APRIL 2016
Product Folder Links:
AM3359 AM3358 AM3357 AM3356 AM3354 AM3352 AM3351
Power and Clocking
Copyright © 2011–2016, Texas Instruments Incorporated
6.2.2.5
OSC1 Not Used
shows the recommended oscillator connections when OSC1 of the ZCE package is not used
and
shows the recommended oscillator connections when OSC1 of the ZCZ package is not
used. An internal 10 k
Ω
pullup on the RTC_XTALIN terminal is turned on when OSC1 is disabled to
prevent this input from floating to an invalid logic level which may increase leakage current through the
oscillator input buffer. OSC1 is disabled by default after power is applied. Therefore, both RTC_XTALIN
and RTC_XTALOUT terminals should be a no connect (NC) when OSC1 is not used.
Figure 6-17. OSC1 (ZCE Package) Not Used Schematic
Figure 6-18. OSC1 (ZCZ Package) Not Used Schematic