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AT8563 参数 Datasheet PDF下载

AT8563图片预览
型号: AT8563
PDF下载: 下载PDF文件 查看货源
内容描述: [AT8563是一款经典的工业级实时时钟芯片(RTC),I2C总线接口,具有功耗低、精度高等特点,广泛应用于电表、水表、气表、电话等产品。]
分类和应用: 电话时钟
文件页数/大小: 24 页 / 729 K
品牌: Narda-ATM [ Narda-ATM ]
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Torwards  
AT8563  
These bits represent the current day value coded in BCD format; value = 01 to  
31.  
AT8563 compensates for leap years by adding a 29th day to February if the year  
counter contains a value which is exactly divisible by 4, including the year ‘00’.  
b5..0 <days>  
Table 14 Weekdays register bits description  
Description  
06H  
Symbol  
b7..3  
-
not implemented  
These bits represent the current weekday value 0 to 6, whose  
meaning is customized by users. However, we recommend a way  
to specify the weekday number, see Table 15.  
These bits may be re-assigned by the user.  
b2..0 <weekdays>  
Table 15 Suggested Weekday assignments  
Day  
Bit 2 Bit 1 Bit 0  
Sunday  
Monday  
0
0
0
0
1
1
1
0
0
1
1
0
0
1
0
1
0
1
0
1
0
Tuesday  
Wednesday  
Thursday  
Friday  
Saturday  
Table 16 Months/Century register bits description  
07H  
Symbol  
Description  
Century bit. C = 0; indicates the century is 20xx.  
C = 1; indicates the century is 19xx. ‘xx’ indicates the value held in the  
Years register; see Table 18.  
This bit is toggled when the Years register overflows from 99 to 00.  
These bits may be re-assigned by the user  
b7  
C
-
b6..5  
not implemented  
These bits represents the current month value coded in BCD format;  
value = 01 to 12; see Table 17.  
b4..0 <months>  
Table 17 Month assignments  
Month  
Bit 4 Bit 3 Bit 2 Bit 1 Bit 0  
January  
February  
March  
April  
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
0
1
1
0
0
1
1
0
1
0
1
0
May  
June  
8
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