PCF8523 NXP [NXP Semiconductors], PCF8523 Datasheet - Page 29

• Manufacturer Part Number: PCF8523
• Description: Real-Time Clock (RTC) and calendar
• Manufacturer: NXP [NXP Semiconductors]

NXP Semiconductors
PCF8523
Product data sheet
Table 30.
[1]
In MODE = 1, any timer source clock using a frequency below 4.096 kHz will be also
affected by the clock correction (see
Table 31.
Correction value
+1 or 1
+2 or 2
+3 or 3
:
+59 or 59
+60 or 60
+61 or 61
+62 or 62
+63 or 63
64
CLKOUT frequency (Hz) Effect of correction
32768
16384
8192
4096
1024
32
1
The correction pulses on pin INT1 are
1

2048
s.
Correction pulses for MODE = 1
Effect of clock correction for MODE = 1
All information provided in this document is subject to legal disclaimers.
Minute
02
02
02
:
02
02
02
02
02
02
02
02
02
02
Rev. 3 — 30 March 2011
no effect
no effect
no effect
no effect
no effect
effected
effected
1

4096
Table
s wide. For multiple pulses they are repeated at an interval of
31).
Second
00
00 and 01
00, 01, and 02
:
00 to 58
00 to 59
00 to 58
59
00 to 58
59
00 to 58
59
00 to 58
59
Timer source clock
frequency (Hz)
4096
64
1
1
1
-
-


60
3600
Real-Time Clock (RTC) and calendar
Correction pulses on
INT1 per second
1
1
1
:
1
1
1
2
1
2
1
4
1
5
Effect of
correction
no effect
effected
effected
effected
effected
-
-
PCF8523
© NXP B.V. 2011. All rights reserved.
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