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PCF85263ATL/A Datasheet(PDF) 54 Page - NXP Semiconductors

Part # PCF85263ATL/A
Description  Tiny Real-Time Clock/calendar with alarm function, battery switch-over, time stamp input, and I2C-bus
PDF  92 Pages
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Manufacturer  NXP [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo NXP - NXP Semiconductors

PCF85263ATL/A Datasheet(HTML) 54 Page - NXP Semiconductors

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NXP Semiconductors
PCF85263A
Tiny Real-Time Clock/calendar with alarm function, battery switch-over, time stamp input, and I2C-bus
s
1
0
1
0
0
0 1
0
A 0
0
1
0
1
1
1
1
A 0 0
1
0
1
1
0
0
A P/S
SDA
SCL
slave address
address 2Fh
software reset 2Ch
R/W
aaa-010473
internal
reset signal
Figure 31. Software reset command
The PCF85263A resets to:
Mode: real-time clock, 100th second off
Time: 00:00:00.00
Date: 2000.01.01
Weekday: Saturday
Battery switch: on, switching on the lower threshold voltage
Oscillator: CL = 7 pF
Pins: INTA = 32 kHz output, CLK = 32 kHz output, TS = disabled
In the reset state, all registers are set according to Table 61.
Registers labeled as - remain unchanged.
Bit
Address
Register name
7
6
5
4
3
2
1
0
00h
100TH_seconds
0
0
0
0
0
0
0
0
01h
Seconds
1
0
0
0
0
0
0
0
02h
Minutes
0
0
0
0
0
0
0
0
03h
Hours
0
0
0
0
0
0
0
0
04h
Days
0
0
0
0
0
0
0
1
05h
Weekdays
0
0
0
0
0
1
1
0
06h
Months
0
0
0
0
0
0
0
1
07h
Years
0
0
0
0
0
0
0
0
Second_alarm1
08h
Second_alm1
-
-
-
-
-
-
-
-
Minute_alarm1
09h
Minute_alm1
-
-
-
-
-
-
-
-
Hour_alarm1
0Ah
Hr_xx_xx_00_alm1
-
-
-
-
-
-
-
-
Table 61. Registers reset values
PCF85263A
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2021. All rights reserved.
Product data sheet
Rev. 5 — 1 February 2021
54 / 92



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