pca2125 NXP Semiconductors, pca2125 Datasheet - Page 4
pca2125
Manufacturer Part Number
pca2125
Description
Spi Real Time Clock / Calendar Semiconductors
Manufacturer
NXP Semiconductors
Datasheet
1.PCA2125.pdf
(40 pages)
NXP Semiconductors
4. Block diagram
5. Device protection diagram
PCA2125_00
Preliminary data sheet
Fig 2. Block diagram of PCA2125
Fig 3. Device diode protection diagram PCA2125
CLKOUT
OSCO
OSCI
SDO
SCL
V
V
SDI
CE
DD
SS
1
2
13
7
14
10
8
9
6
200 kΩ
OSCILLATOR
OSCILLATOR
SERIAL BUS
INTERFACE
32.768 kHz
MONITOR
OSCO
OSCI
V
INT
CE
SS
Rev. 00.11 — 30 January 2007
POR
PCA2125
REGISTER
CONTROL
ADDRESS
DIVIDER
TIMER
LOGIC
AND
INT
V
CLKOUT
SCL
SDI
SDO
001aaf895
5
1 Hz
DD
CLOCKOUT CONTROL
COUNTDOWN TIMER
WEEKDAY ALARM
TIMER CONTROL
MINUTE ALARM
HOUR ALARM
CONTROL 1
CONTROL 2
DAY ALARM
WEEKDAYS
SECONDS
MINUTES
MONTHS
HOURS
YEARS
DAYS
SPI Real time clock / calendar
001aaf894
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
PCA2125
© NXP B.V. 2007. All rights reserved.
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