Philips Semiconductors
Product specification
Low power clock/calendar
PCF8593
handbook, full pagewidth
MSB
7
6
5
4
3
2
1
LSB
0
memory location 04 (hours counter)
unit hours BCD
ten hours (0 to 12 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
MBD812
Fig.5 Format of the hours counter.
handbook, full pagewidth
MSB
7
6
5
4
3
2
1
LSB
0
memory location 05 (year/date)
unit hours BCD
ten days (0 to 3 binary)
year (0 to 3 binary, read as 0 if
the mask flag is set)
MBD813
Fig.6 Format of the year/date counter.
handbook, full pagewidth
MSB
7
6
5
4
3
2
1
LSB
0
memory location 06 (weekdays/months)
unit months BCD
ten months
weekdays (0 to 6 binary, read as 0 if
the mask flag is set)
MBD814
Fig.7 Format of the weekdays/months counter.
1997 Mar 25
8
PHILIPS [ NXP SEMICONDUCTORS ]
