SN32F760 Series
32-Bit Cortex-M0 Micro-Controller
SONiX TECHNOLOGY CO., LTD
Page 49
Version 2.0
3.2.3
EXTERNAL CLOCK SOURCE
3.2.3.1
External High-speed (EHS) Clock
External high clock includes Crystal/Ceramic modules. The startup time of Crystal is longer. The oscillator start-up time
decides reset time length.
3.2.3.2
CRYSTAL/CERAMIC
Crystal/Ceramic devices are driven by XIN, XOUT pins. For high/normal/low frequency, the driving currents are
different.
MCU
VCC
GND
C
20pF
XIN
XOUT
VDD
V
S
S
C
20pF
CRYSTAL
Note: Connect the Crystal/Ceramic and C as near as possible to the XIN/XOUT/VSS pins of MCU.
Structure:
1MHz~25MHz EHS external crystal/ceramic resonator
Main Purpose:
System high clock source, RTC clock source, and PLL clock source.
Warm-up Time:
2048*F
EHS
XIN/XOUT Shared Pin Selection:
Oscillator Mode
XTALIN pin
XTALOUT pin
IHRC
GPIO
GPIO
EHS X’TAL
Crystal/Ceramic
Crystal/Ceramic
4MHz Ceramic
4MHz Crystal
Содержание SN32F755
Страница 218: ...SN32F760 Series 32 Bit Cortex M0 Micro Controller SONiX TECHNOLOGY CO LTD Page 218 Version 2 0 22 2 LQFP 64 PIN...
Страница 220: ...SN32F760 Series 32 Bit Cortex M0 Micro Controller SONiX TECHNOLOGY CO LTD Page 220 Version 2 0 22 4 QFN 46 PIN...
Страница 221: ...SN32F760 Series 32 Bit Cortex M0 Micro Controller SONiX TECHNOLOGY CO LTD Page 221 Version 2 0 22 5 QFN 33 PIN 5x5...