PCF8563
NXP Semiconductors
Real-time clock/calendar
6. Block diagram
OSCI
OSCILLATOR
32.768 kHz
DIVIDER
CLOCK OUT
CLKOUT
OSCO
CONTROL
MONITOR
00
01
0D
CONTROL_STATUS_1
CONTROL_STATUS_2
CLKOUT_CONTROL
(1)
POWER ON
RESET
TIME
VL_SECONDS
MINUTES
02
03
04
05
06
07
08
HOURS
V
DD
DAYS
V
SS
WEEKDAYS
CENTURY_MONTHS
YEARS
WATCH
DOG
ALARM FUNCTION
MINUTE_ALARM
HOUR_ALARM
09
0A
0B
0C
2
DAY_ALARM
SDA
SCL
I C-BUS
INTERFACE
WEEKDAY_ALARM
INT
INTERRUPT
TIMER FUNCTION
TIMER_CONTROL
TIMER
0E
0F
PCF8563
001aah658
(1) COSCO; values see Table 30.
Fig 1. Block diagram of PCF8563
PCF8563
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© NXP B.V. 2012. All rights reserved.
Product data sheet
Rev. 10 — 3 April 2012
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