ISL12022MIBZ-T Intersil, ISL12022MIBZ-T Datasheet - Page 14

• Manufacturer Part Number: ISL12022MIBZ-T
• Description: IC RTC/CALENDAR TEMP SENS 20SOIC
• Manufacturer: Intersil
• Type: Clock/Calendarr

Specifications of ISL12022MIBZ-T

• Memory Size: 128B
• 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-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: ISL12022MIBZ-TCT

ADDR. SECTION
Real Time Clock Registers
Addresses [00h to 06h]
RTC REGISTERS (SC, MN, HR, DT, MO, YR, DW)
These registers depict BCD representations of the time.
As such, SC (Seconds) and MN (Minutes) range from 0 to
59, HR (Hour) can either be a 12-hour or 24-hour mode,
DT (Date) is 1 to 31, MO (Month) is 1 to 12, YR (Year) is
0 to 99, and DW (Day of the Week) is 0 to 6.
The DW register provides a Day of the Week status and
uses three bits (DW2 to DW0) to represent the seven
days of the week. The counter advances in the cycle
0-1-2-3-4-5-6-0-1-2-… The assignment of a numerical
value to a specific day of the week is arbitrary and may
1Ch
1Dh
2Ch
2Dh
16h
17h
18h
19h
1Ah
1Bh
1Eh
1Fh
20h
21h
22h
23h
24h
25h
26h
27h
28h
29h
2Ah
2Bh
2Eh
2Fh
ALPHAH
DSTCR
TSV2B
TSB2V
TABLE 1. REGISTER MEMORY MAP (YELLOW SHADING INDICATES READ-ONLY BITS) (Continued)
TEMP
NPPM
GPM
XT0
DstMoFd
DstDwFd
DstMoRv
DstDwRv
NAME
ALPHAH
DstDtFd
DstHrFd
DstDtRv
DstHrRv
NPPMH
NPPML
REG
GPM1
GPM2
TK0M
TK0L
VMN
VMO
BMN
BMO
VSC
VHR
BSC
BHR
VDT
BDT
XT0
14
NPPM7
GPM17
GPM27
DSTE
VMIL
BMIL
TK07
D
D
D
D
D
D
D
D
D
0
0
0
0
0
0
0
0
0
0
7
DstDwRvE
DstDwFdE DstWkFd12 DstWkFd11 DstWkFd10 DstDwFd12 DstDwFd11 DstDwFd10
ALP_H6
NPPM6
GPM16
GPM26
VMN22
BMN22
VSC22
BSC22
TK06
6
D
D
D
D
D
D
D
0
0
0
0
0
0
0
0
DstDtFd21
DstHrFd21
DstWkrv12 DstWkRv11 DstWkRv10 DstDwRv12 DstDwRv11 DstDwRv10
DstDtRv21
DstHrRv21
ALP_H5
NPPM5
GPM15
GPM25
VSC21
VMN21
VHR21
BSC21
BMN21
BHR21
VDT21
BDT21
TK05
5
D
D
D
0
0
0
0
ISL12022M
DstMoFd20 DstMoFd13 DstMoFd12 DstMoFd11 DstMoFd10
DstMoRv20 DstMoRv13 DstMoR12v DstMoRv11 DstMoRv10
DstDtFd20
DstHrFd20
DstDtRv20
DstHrRv20
ALP_H4
VMN20
VMO20
BMN20
BMO20
NPPM4
GPM14
GPM24
VSC20
VHR20
BSC20
BHR20
VDT20
BDT20
TK04
XT4
4
0
0
be decided by the system software designer. The default
value is defined as “0”.
24-HOUR TIME
If the MIL bit of the HR register is “1”, the RTC uses a
24-hour format. If the MIL bit is “0”, the RTC uses a
12-hour format and HR21 bit functions as an AM/PM
indicator with a “1” representing PM. The clock defaults
to 12-hour format time with HR21 = “0”.
LEAP YEARS
Leap years add the day February 29 and are defined as
those years that are divisible by 4. Years divisible by 100
are not leap years, unless they are also divisible by 400.
This means that the year 2000 is a leap year and the
year 2100 is not. The ISL12022M does not correct for the
leap year in the year 2100.
BIT
DstDtFd13
DstHrFd13
DstDtRv13
DstHrRv13
ALP_H3
VMN13
VMO13
BMN13
BMO13
NPPM3
GPM13
GPM23
VSC13
VHR13
VDT13
BSC13
BHR13
BDT13
TK03
XT3
3
0
0
DstHrRv12
DstDtFd12
DstHrFd12
DstDtRv12
NPPM10
ALP_H2
NPPM2
VMN12
VMO12
BMN12
BMO12
GPM12
GPM22
VSC12
VHR12
VDT12
BSC12
BHR12
BDT12
TK02
XT2
2
0
DstDtFd11
DstHrFd11
DstDtRv11
DstHrRv11
ALP_H1
NPPM1
NPPM9
VMN11
VMO11
BMN11
BMO11
GPM11
GPM21
VSC11
VHR11
BSC11
BHR11
VDT11
BDT11
TK01
TK09
XT1
1
DstHrFd10
DstDtRv10
DstHrRv10
DstDtFd10
ALP_H0
VMO10
BMO10
NPPM0
NPPM8
GPM10
GPM20
VMN10
VHR10
BMN10
BHR10
VSC10
VDT10
BSC10
BDT10
TK00
TK08
XT0
0
RANGE DEFAULT
01 to 12
01 to 31
00 to FF
00 to 03
00 to FF
00 to 07
00 to FF
00 to 7F
00 to FF
00 to FF
0 to 59
0 to 59
0 to 23
1 to 31
1 to 12
0 to 59
0 to 59
0 to 23
1 to 31
1 to 12
1 to 12
1 to 31
0 to 23
0 to 23
0 to 6
0 to 6
June 4, 2010
FN6668.7
XXh
XXh
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h