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PCF8583PF5-112 Datasheet(PDF) 9 Page - NXP Semiconductors

Part No. PCF8583PF5-112
Description  Clock and calendar with 240 x 8-bit RAM
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

PCF8583PF5-112 Datasheet(HTML) 9 Page - NXP Semiconductors

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PCF8583
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© NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 06 — 6 October 2010
9 of 37
NXP Semiconductors
PCF8583
Clock and calendar with 240 x 8-bit RAM
7.5 Alarm control register
When the alarm enable bit of the control and status register is set (address 00h, bit 2) the
alarm control register (address 08h) is activated. All alarm, timer, and interrupt output
functions are controlled by the contents of the alarm control register (see Figure 10).
Table 4.
Cycle length of the time counters, clock modes
Unit
Counting cycle
Carry to next unit
Contents of month
calendar
hundredths of a second
00 to 99
99 to 00
-
seconds
00 to 59
59 to 00
-
minutes
00 to 59
59 to 00
-
hours (24)
00 to 23
23 to 00
-
hours (12)
12 am
-
-
01 am to 11 am
-
-
12 pm
-
-
01 pm to 11 pm
11 pm to 12 am
-
date
01 to 31
31 to 01
1, 3, 5, 7, 8, 10, and 12
01 to 30
30 to 01
4, 6, 9, and 11
01 to 29
29 to 01
2, year = 0
01 to 28
28 to 01
2, year = 1, 2, and 3
months
01 to 12
12 to 01
-
year
0 to 3
-
-
weekdays
0 to 6
6 to 0
-
timer
00 to 99
no carry
-


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