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參數(shù)資料
| 型號： | X1205S8IT1 |
| 廠商： | Intersil |
| 文件頁數(shù)： | 13/22頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC RTC/CALENDAR 2-WIRE 8-SOIC |
| 標準包裝： | 2,500 |
| 類型： | 時鐘/日歷 |
| 特點： | 警報器，閏年 |
| 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： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應商設(shè)備封裝： | 8-SOIC |
| 包裝： | 帶卷 (TR) |
20
FN8097.3
May 2, 2006
Referring to Figure 13, Vtrip applies to the “Internal
Vcc” node which powers the entire device. This means
that if Vcc is powered down and the battery voltage at
Vback is higher than the Vtrip voltage, then the entire
chip will be running from the battery. If Vback falls to
lower than Vtrip, then the chip shuts down and all out-
puts are disabled except for the oscillator and time-
keeping circuitry. The fact that the chip can be
powered from Vback is not necessarily an issue since
standby current for the RTC devices is <2A for this
mode (called “main timekeeping current” in the data
sheet). Only when the serial interface is active is there
an increase in supply current, and with Vcc powered
down, the serial interface will most likely be inactive.
One way to prevent operation in battery backup mode
above the Vtrip level is to add a diode drop (silicon
diode preferred) to the battery to insure it is below
Vtrip. This will also provide reverse leakage protection
which may be needed to get safety agency approval.
One mode that should always be avoided is the opera-
tion of the RTC device with Vback greater than both Vcc
and Vtrip (Condition 2d in Table 6). This will cause the
battery to drain quickly as serial bus communication and
non-volatile writes will require higher supplier current.
PERFORMANCE DATA
Figure 14. IBACK Performance
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
IBACK vs. Temperature
Multi-Lot Process Variation Data
Temperature °C
-40
25
60
85
I BACK
(A)
3.3V
1.8V
X1205
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| X1205S8IZ | 制造商:Intersil Corporation 功能描述:Real Time Clock IC |
| X1205S8IZT1 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:2-Wire RTC Real Time Clock/Calendar |
| X1205S8T1 | 功能描述:IC RTC/CALENDAR 2-WIRE 8-SOIC 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(shè)備封裝:8-TDFN EP 包裝:管件 |
| X1205S8Z | 功能描述:IC RTC/CALENDAR/ALARM 4K 8-SOIC RoHS:是 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(shè)備封裝:8-TDFN EP 包裝:管件 |
| X1205S8ZT1 | 功能描述:IC RTC/CALENDAR/ALARM 4K 8-SOIC RoHS:是 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(shè)備封裝:8-TDFN EP 包裝:管件 |
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