PCF8523 NXP [NXP Semiconductors], PCF8523 Datasheet - Page 3
PCF8523
Manufacturer Part Number
PCF8523
Description
Real-Time Clock (RTC) and calendar
Manufacturer
NXP [NXP Semiconductors]
Datasheet
1.PCF8523.pdf
(66 pages)
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NXP Semiconductors
6. Block diagram
PCF8523
Product data sheet
Fig 1.
OSCO
Block diagram of PCF8523
OSCI
V
SDA
SCL
V
V
BAT
DD
SS
C OSCO
C OSCI
BATTERY
BACKUP
SWITCH-OVER
CIRCUTRY
POWER-ON
RESET
OSCILLATOR
32.768 kHz
I
INTERFACE
2
C-BUS
PCF8523
All information provided in this document is subject to legal disclaimers.
Rev. 3 — 30 March 2011
DIVIDER
CLOCK
CALIBRATION
OFFSET
SYSTEM
CONTROL
REAL-TIME
CLOCK
ALARM
TIMER
CLOCK OUT
INTERRUPT
Real-Time Clock (RTC) and calendar
013aaa305
&
INT2
CLKOUT
INT1/CLKOUT
PCF8523
© NXP B.V. 2011. All rights reserved.
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