NUC505DLA Datasheet, PDF (87/130 Pages) List of Unclassifed Manufacturers – 32-bit Microcontroller

NUC505
12 MHz
32.768 kHz
20pF
33pF
1 MΩ
10 MΩ
Table 6.3-1 Recommended Load Capacitance Values and Resistance Values.
BOARD CHIP
C1
XT_IN /
X32_IN
crystal
C2
R
XT_OUT /
X32_OUT
External
Crystal
CLOCK_OUT
Figure 6.3-3 Crystal Oscillator Circuit
6.3.4 Power-down Mode Clock
When entering Power-down mode, system clocks, some clock sources and some peripheral clocks
are disabled. Some clock sources and peripherals clock are still active in Power-down mode.
The clocks which still keep active are listed below:
 Clock Generator
 32.768 kHz internal low speed RC oscillator (LIRC) clock
 32.768 kHz external low speed crystal oscillator (LXT) clock
In Power-down mode, If the woke-up even occurred, the disabled clocks will be regenerated after
PDWKPSC (CLK_PWRCTL[23:8]) x 256 HXT cycle.
June 30, 2016
Page 87 of 130
Rev 1.06