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PCF85263ATL/A Datasheet(PDF) 20 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  100 Pages
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Manufacturer  NXP [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo NXP - NXP Semiconductors

PCF85263ATL/A Datasheet(HTML) 20 Page - NXP Semiconductors

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PCF85263A
All information provided in this document is subject to legal disclaimers.
© NXP Semiconductors N.V. 2015. All rights reserved.
Product data sheet
Rev. 4.1 — 27 November 2015
20 of 100
NXP Semiconductors
PCF85263A
Tiny RTC with alarm, battery switch-over, and I2C-bus
8.4.1.2
Alarm1 and alarm2 control in RTC mode
Table 13.
Alarm1 and alarm2 registers in RTC mode coded in BCD (RTCM = 0)
Bit positions labeled as - are not implemented.
Address
Register name
Upper-digit (ten’s place)
Digit (unit place)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
RTC alarm1 registers
08h
Second_alarm1
-
0 to 5
0 to 9
09h
Minute_alarm1
-
0 to 5
0 to 9
0Ah
Hour_alarm1
-
-
AMPM 0 to 1
0 to 9
0 to 2
0 to 9
0Bh
Day_alarm1
-
-
0 to 3
0 to 9
0Ch
Month_alarm1
-
-
-
0 to 1
0 to 9
RTC alarm2 registers
0Dh
Minute_alarm2
-
0 to 5
0 to 9
0Eh
Hour_alarm2
-
-
AMPM 0 to 1
0 to 9
0 to 2
0 to 9
0Fh
Weekday_alarm2 ---
--0 to 6
Table 14.
Alarm_enables- alarm enable control register (address 10h) bit
description
Bit
Symbol
Value
Description
RTC alarm2
7
WDAY_A2E
weekday alarm2 enable
0[1]
disabled
1
enabled
6HR_A2E
hour alarm2 enable
0[1]
disabled
1
enabled
5
MIN_A2E
minute alarm2 enable
0[1]
disabled
1
enabled
RTC alarm1
4
MON_A1E
month alarm1 enable
0[1]
disabled
1
enabled
3DAY_A1E
day alarm1 enable
0[1]
disabled
1
enabled
2HR_A1E
hour alarm1 enable
0[1]
disabled
1
enabled



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