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參數(shù)資料
| 型號： | X1226 |
| 英文描述： | Real Time Clock/Calendar with EEPROM |
| 中文描述： | 實時時鐘/日歷帶有EEPROM |
| 文件頁數(shù)： | 21/24頁 |
| 文件大小： | 420K |
| 代理商： | X1226 |
X1226
REV 1.1.24 1/13/03
Characteristics subject to change without notice.
21 of 24
www.xicor.com
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 <2μA 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 8). This will cause
the battery to drain quickly as serial bus communica-
tion and non-volatile writes will require higher supplier
current.
PERFORMANCE DATA
I
BACK
Performance
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
I
BACK
vs. Temperature
Multi-Lot Process Variation Data
Temperature
°
C
-40
25
60
85
I
B
3.3V
1.8V
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| X1226S8 | Real Time Clock/Calendar with EEPROM |
| X1226S8I | Real Time Clock/Calendar with EEPROM |
| X1226V8 | Real Time Clock/Calendar with EEPROM |
| X1226V8I | Real Time Clock/Calendar with EEPROM |
| X1226 | Real Time Clock/Calendar with EEPROM |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| X1226_06 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Real Time Clock/Calendar with EEPROM |
| X122621-AT | 功能描述:基本/快動開關(guān) SEALED OI-SE SWITCH RoHS:否 制造商:Omron Electronics 觸點形式:SPDT 執(zhí)行器:Lever 電流額定值:5 A 電壓額定值 AC:250 V 電壓額定值 DC:30 V 功率額定值: 工作力:120 g IP 等級:IP 67 NEMA 額定值: 端接類型:Wire 安裝:Panel |
| X122623-AT | 功能描述:基本/快動開關(guān) SEALED OI-SE SWITCH RoHS:否 制造商:Omron Electronics 觸點形式:SPDT 執(zhí)行器:Lever 電流額定值:5 A 電壓額定值 AC:250 V 電壓額定值 DC:30 V 功率額定值: 工作力:120 g IP 等級:IP 67 NEMA 額定值: 端接類型:Wire 安裝:Panel |
| X122624-AT | 功能描述:基本/快動開關(guān) SEALED OI-SE SWITCH RoHS:否 制造商:Omron Electronics 觸點形式:SPDT 執(zhí)行器:Lever 電流額定值:5 A 電壓額定值 AC:250 V 電壓額定值 DC:30 V 功率額定值: 工作力:120 g IP 等級:IP 67 NEMA 額定值: 端接類型:Wire 安裝:Panel |
| X122625-AT | 功能描述:基本/快動開關(guān) SEALED OI-SE SWITCH RoHS:否 制造商:Omron Electronics 觸點形式:SPDT 執(zhí)行器:Lever 電流額定值:5 A 電壓額定值 AC:250 V 電壓額定值 DC:30 V 功率額定值: 工作力:120 g IP 等級:IP 67 NEMA 額定值: 端接類型:Wire 安裝:Panel |
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