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PCF8564A 数据表(PDF) 18 Page - NXP Semiconductors

部件名 PCF8564A
功能描述  Tiny Real-Time Clock/calendar with alarm function and I2C-bus
PDF  65 Pages
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制造商  NXP [NXP Semiconductors]
网页  http://www.nxp.com
标志 NXP - NXP Semiconductors

PCF8564A 数据表(HTML) 18 Page - NXP Semiconductors

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PCF85063A
All information provided in this document is subject to legal disclaimers.
© NXP Semiconductors N.V. 2018. All rights reserved.
Product data sheet
Rev. 7 — 30 March 2018
18 of 65
NXP Semiconductors
PCF85063A
Tiny Real-Time Clock/calendar with alarm function and I2C-bus
8.2.3.1
Correction when MODE = 0
The correction is triggered once every two hours and then correction pulses are applied
once per minute until the programmed correction values have been implemented.
[1]
The correction pulses on pin INT are 1⁄64 s wide.
In MODE = 0, any timer or clock output using a frequency below 64 Hz is affected by the
clock correction (see Table 15).
Table 14.
Correction pulses for MODE = 0
Correction value
Update every nth hour Minute
Correction pulses on
INT per minute[1]
+1 or
12
00
1
+2 or
2
2
00 and 01
1
+3 or
3
2
00, 01, and 02
1
::::
+59 or
59
2
00 to 58
1
+60 or
60
2
00 to 59
1
+61 or
61
2
00 to 59
1
2nd and next hour
00
1
+62 or
62
2
00 to 59
1
2nd and next hour
00 and 01
1
+63 or
63
02
00 to 59
1
2nd and next hour
00, 01, and 02
1
64
02
00 to 59
1
2nd and next hour
00, 01, 02, and 03
1
Table 15.
Effect of correction pulses on frequencies for MODE = 0
Frequency (Hz)
Effect of correction
CLKOUT
32768
no effect
16384
no effect
8192
no effect
4096
no effect
2048
no effect
1024
no effect
1affected
Timer source clock
4096
no effect
64
no effect
1affected
1⁄60
affected



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