ISL12020MIRZ Intersil, ISL12020MIRZ Datasheet - Page 23

• Manufacturer Part Number: ISL12020MIRZ
• Description: IC RTC/CALENDAR TEMP SNSR 20-DFN
• Manufacturer: Intersil
• Type: Clock/Calendarr

Specifications of ISL12020MIRZ

• Memory Size: 1K (128 x 8)
• Time Format: HH:MM:SS (12/24 hr)
• Date Format: YY-MM-DD-dd
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-DFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

• Bits 3, 4, 5 contain the Week of the Month
DST Date Forward
DstDtfd controls which Date DST begins. The format for
the Date is the same as for the RTC register, from 1 to
31. The default value for DST forward date is 00h.
DstDtFd is only effective if DstDwFdE = 0.
DST Hour Forward
DstHrFd controls the hour that DST begins. The RTC hour
and DstHrFd registers have the same formats except
there is no Military bit for DST hour. The user sets the
ADDRESS
ADDRESS
information that sets the week that DST starts. The
range is from 1 to 5, and Week 7 is used to indicate
the last week of the month. The default for the DST
Forward Week of the Month is 00h.
19h
1Ah
1Bh
1Ch
15h
16h
17h
18h
Hour Reverse
Date Reverse
Day Reverse
Day Forward
FUNCTION
Reverse
Forward
Forward
Forward
Month
NAME
Month
Hour
Date
23
DSTE
7
0
0
0
7
0
0
TABLE 20. DST FORWARD REGISTERS
TABLE 21. DST REVERSE REGISTERS
DwFdE
DwRvE
6
0
0
0
6
0
0
0
ISL12020M
WkFd12
DtFd21
HrFd21
WkRv12
DtRv21
HrRv21
5
0
5
0
DST hour with the same format as used for the RTC hour
(AM/PM or MIL) but without the MIL bit, and the DST will
still advance as if the MIL bit were there. The default
value for DST hour Forward is 00h.
DST REVERSE REGISTERS (24H TO 27H)
DST end (reverse) is controlled by the following DST
Registers:
DST Month Reverse
DstMoRv sets the Month that DST ends. The format is
the same as for the RTC register month, from 1 to 12.
The default value for the DST end month is October
(10h).
WkFd11
MoFd20
WkRv11
DtFd20
HrFd20
MoRv20
HrRv20
DtRv20
4
4
WkFd10
WkRv10
MoFd13
MoRv13
HrRv13
DtFd13
HrFd13
DtRv13
3
3
DwRv12
DwFd12
MoRv12
MoFd12
HrRv12
DtRv12
DtFd12
HrFd12
2
2
DwRv11
MoRv11
DwFd11
DtRv11
HrRv11
MoFd11
DtFd11
HrFd11
1
1
February 11, 2010
DwRv10
DwFd10
MoRv10
MoFd10
DtRv10
HrRv10
DtFd10
HrFd10
FN6667.4
0
0