參數(shù)資料
型號: PCF8583
廠商: NXP SEMICONDUCTORS
元件分類: XO, clock
英文描述: Clock/calendar with 240×8-bit RAM(帶240×8位RAM的時鐘/日歷)
中文描述: REAL TIME CLOCK
文件頁數(shù): 8/28頁
文件大小: 162K
代理商: PCF8583
1997 Jul 15
8
Philips Semiconductors
Product specification
Clock/calendar with 240
×
8-bit RAM
PCF8583
Fig.5 Format of the hours counter.
handbook, full pagewidth
7
6
5
4
3
2
1
0
MSB
LSB
MRB002
memory location 04 (hours counter)
reset state: 0000 0000
unit hours BCD
ten hours (0 to 2 binary)
AM/PM flag:
0 AM
1 PM
format:
0 24 h format, AM/PM flag
remains unchanged
1 12 h format, AM/PM flag
will be updated
Fig.6 Format of the year/date counter.
handbook, full pagewidth
7
6
5
4
3
2
1
0
MSB
LSB
MRB003
memory location 05 (year/date)
reset state: 0000 0001
unit days BCD
ten days (0 to 3 binary)
year (0 to 3 binary, read as 0 if
the mask flag is set)
Fig.7 Format of the weekdays/month counter.
handbook, full pagewidth
7
6
5
4
3
2
1
0
MSB
LSB
MRB004
memory location 06 (weekdays/months)
reset state: 0000 0001
unit months BCD
ten months
weekdays (0 to 6 binary, read as 0 if
the mask flag is set)
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