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| 型號： | ISL12022MIBZR5421 |
| 廠商： | Intersil |
| 文件頁數(shù)： | 15/31頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC RTC/CALENDAR TEMP SNSR 20SOIC |
| 應用說明： | Addressing Power Issues in Real Time Clock Appls |
| 產(chǎn)品培訓模塊： | Solutions for Industrial Control Applications |
| 標準包裝： | 760 |
| 類型： | 時鐘/日歷 |
| 特點： | 警報器，夏令時，閏年，SRAM |
| 存儲容量： | 128B |
| 時間格式： | HH:MM:SS（12/24 小時） |
| 數(shù)據(jù)格式： | YY-MM-DD-dd |
| 接口： | I²C，2 線串口 |
| 電源電壓： | 2.7 V ~ 5.5 V |
| 電壓 - 電源，電池： | 1.8 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 20-SOIC（0.295"，7.50mm 寬） |
| 供應商設備封裝： | 20-SOIC |
| 包裝： | 管件 |
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ISL12022MR5421
22
FN7576.3
June 7, 2012
Example 1
Alarm set with single interrupt (IM = “0”)
A single alarm will occur on January 1 at 11:30 a.m.
Set Alarm registers as follows:
After these registers are set, an alarm will be generated when the
RTC advances to exactly 11:30 a.m. on January 1 (after seconds
changes from 59 to 00) by setting the ALM bit in the status register
to “1” and also bringing the IRQ/FOUT output low.
Example 2
Pulsed interrupt once per minute (IM = “1”)
Interrupts at one minute intervals when the seconds register is
at 30 seconds.
Set Alarm registers as follows:
Once the registers are set, the following waveform will be seen at
IRQ/FOUT:
Note that the status register ALM bit will be set each time the
alarm is triggered, but does not need to be read or cleared.
Time Stamp VDD to Battery Registers (TSV2B)
The TSV2B Register bytes are identical to the RTC register bytes,
except they do not extend beyond the Month. The Time Stamp
captures the FIRST VDD to Battery Voltage transition time, and will
not update upon subsequent events until cleared (only the first event
is captured before clearing). Set CLRTS = 1 to clear this register (Add
09h, PWR_VDD register).
Note that the time stamp registers are cleared to all “0”,
including the month and day, which is different from the RTC and
alarm registers (those registers default to 01h). This is the
indicator that no time stamping has occurred since the last clear
or initial power-up. Once a time stamp occurs, there will be a non-
zero time stamp.
Time Stamp Battery to VDD Registers (TSB2V)
The Time Stamp Battery to VDD Register bytes are identical to
the RTC register bytes, except they do not extend beyond Month.
The Time Stamp captures the LAST transition of VBAT to VDD
(only the last event of a series of power-up/power-down events is
retained). Set CLRTS = 1 to clear this register (Add 09h, PWR_VDD
register).
TABLE 21. SINGLE-EVENT ALARM
ALARM
REGISTER
BIT
DESCRIPTION
76 543 21 0
HEX
SCA0
00 00 000 0
00h Seconds disabled
MNA0
10 11 000 0
B0h Minutes set to 30,
enabled
HRA0
10 01 000 1
91h Hours set to 11,
enabled
DTA0
10 00 000 1
81h Date set to 1,
enabled
MOA0
10 00 000 1
81h Month set to 1,
enabled
DWA0
00 00 000 0
00h Day of week
disabled
TABLE 22. PERIODIC INTERRUPT MODE ALARM
ALARM
REGISTER
BIT
DESCRIPTION
7654321 0 HEX
SCA0
1011000 0 B0h Seconds set to 30,
enabled
MNA0
0000000 0 00h Minutes disabled
HRA0
0000000 0 00h Hours disabled
DTA0
0000000 0 00h Date disabled
MOA0
0000000 0 00h Month disabled
DWA0
0000000 0 00h Day of week disabled
60s
RTC AND ALARM REGISTERS ARE BOTH “30s”
FIGURE 16. IRQ/FOUT WAVEFORM
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| ISL12022MIBZ-T | 功能描述:實時時鐘 REAL TIME CLK & TEMP COMPENSATED CRYSTAL RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時間格式:HH:MM:SS RTC 存儲容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| ISL12022MIBZ-T7A | 功能描述:IC RTC/CALENDAR TEMP SNSR 20SOIC RoHS:否 類別:集成電路 (IC) >> 時鐘/計時 - 實時時鐘 系列:- 產(chǎn)品培訓模塊:Obsolescence Mitigation Program 標準包裝:1 系列:- 類型:時鐘/日歷 特點:警報器，閏年，SRAM 存儲容量:- 時間格式:HH:MM:SS（12/24 小時） 數(shù)據(jù)格式:YY-MM-DD-dd 接口:SPI 電源電壓:2 V ~ 5.5 V 電壓 - 電源，電池:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-WDFN 裸露焊盤 供應商設備封裝:8-TDFN EP 包裝:管件 |
| ISL12022MIBZ-TR5421 | 功能描述:實時時鐘 REAL TIME CLK W/MFK IMPROVED ESD AIR RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時間格式:HH:MM:SS RTC 存儲容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| ISL12022MR5421 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Low Power RTC with Battery Backed SRAM, Integrated 5ppm |
| ISL12022M-R5421 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:High-Accuracy RTC Modules, Feature-Rich RTCs |
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