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PCF85363ATL/A データシート(PDF) 30 Page - NXP Semiconductors

部品番号 PCF85363ATL/A
部品情報  Tiny Real-Time Clock/calendar with 64 byte RAM, alarm function, battery switch-over time stamp input, and I2C-bus
PDF  86 Pages
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メーカー  NXP [NXP Semiconductors]
ホームページ  http://www.nxp.com
Logo NXP - NXP Semiconductors

PCF85363ATL/A データシート(HTML) 30 Page - NXP Semiconductors

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NXP Semiconductors
PCF85363A
Tiny Real-Time Clock/calendar with 64 byte RAM, alarm function, battery switch-over time stamp input,
and I2C-bus
Offset value in ppm
OFFSET[7:0]
Offset value in
decimal
Normal mode
OFFM = 0
Fast mode
OFFM = 1
011 1 1111
+127
+275.590
+258.3815
011 1 1110
+126
+273.420
+256.3470
:
:
:
:
0000 0010
+2
+4.340
+4.0690
0000 0001
+1
+2.170
+2.0345
0000 0000[1]
0
0[1]
0[1]
1111 1111
-1
-2.170
-2.0345
1111 1110
-2
-4.340
-4.0690
:
:
:
:
1000 0001
-127
-275.590
-258.3815
1000 0000
-128
-277.760
-260.416
Table 24. Offset values
[1]
Default value.
The correction is made by adding or subtracting clock correction pulses, thereby
changing the period of a single second but not by changing the oscillator frequency.
It is possible to monitor when correction pulses are applied. See Section 7.8.4.
7.8.1 Correction when OFFM = 0
The correction is triggered once every four hours and then correction pulses are applied
once per minute until the programmed correction values have been implemented.
Correction value
Every nth hour
Actual minute
+1 or -1
4
00
+2 or -2
4
00 and 01
+3 or -3
4
00, 01, and 02
:
:
:
+59 or -59
4
00 to 58
+60 or -60
4
00 to 59
4
00 to 59
+61 or -61
4 + 1
00
4
00 to 59
+62 or -62
4 + 1
00 and 01
:
:
:
4
00 to 59
+123 or -123
4 + 1
00 to 59
Table 25. Correction pulses for OFFM = 0
PCF85363A
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2021. All rights reserved.
Product data sheet
Rev. 3.1 — 18 June 2021
30 / 86



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