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PRELIMINARY
CY14B108K, CY14B108M
Document #: 001-47378 Rev. ** Page 10 of 29
Figure 4. RTC Recommended Component Configuration
Figure 5. Interrupt Block Diagram
Recommended Values
Y
1
= 32.768 KHz (6 pF)
C
1
= 21 pF
C
2
= 21 pF
Note: The recommended values for C1 and C2 include
board trace capacitance.
X
out
X
in
Y1
C2
C1
Watchdog
Timer
Power
Monitor
Clock
Alarm
VINT
WDF
WIE
PF
PFE
AF
AIE
P/L
Pin
Driver
H/L
INT
V
CC
V
SS
WDF - Watchdog Timer Flag
WIE - Watchdog Interrupt
PF - Power Fail Flag
PFE - Power Fail Enable
AF - Alarm Flag
AIE - Alarm Interrupt Enable
P/L - Pulse Level
H/L - High/Low
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