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參數(shù)資料
| 型號： | DS1231SN-35 |
| 英文描述： | Power Supply Supervisor |
| 中文描述： | 電源監(jiān)控 |
| 文件頁數(shù)： | 11/12頁 |
| 文件大?。?/td> | 469K |
| 代理商： | DS1231SN-35 |
DS1230Y/AB
8 of 12
POWER-DOWN/POWER-UP TIMING
(tA: See Note 10)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
CE, at VIH before Power-Down
tPD
0
s
11
VCC slew from VTP to 0V ( CE at VIH)
tF
300
s
VCC slew from 0V to VTP ( CE at VIH)
tR
300
s
CE
at VIH after Power-Up
tREC
2
125
ms
(tA=25
°C)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Expected Data Retention Time
tDR
10
years
9
WARNING:
Under no circumstance are negative undershoots, of any amplitude, allowed when device is in battery
backup mode.
NOTES:
1.
WE
is high for a Read Cycle.
2. OE = VIH or VIL. If OE = VIH during write cycle, the output buffers remain in a high-impedance state.
3. tWP is specified as the logical AND of CE and WE . tWP is measured from the latter of CE or WE
going low to the earlier of CE or WE going high.
4. tDH, tDS are measured from the earlier of CE or WE going high.
5. These parameters are sampled with a 5 pF load and are not 100% tested.
6. If the CE low transition occurs simultaneously with or latter than the WE low transition, the output
buffers remain in a high-impedance state during this period.
7. If the CE high transition occurs prior to or simultaneously with the WE high transition, the output
buffers remain in high-impedance state during this period.
8. If WE is low or the WE low transition occurs prior to or simultaneously with the CE low transition,
the output buffers remain in a high-impedance state during this period.
9. Each DS1230 has a built-in switch that disconnects the lithium source until VCC is first applied by the
user. The expected tDR is defined as accumulative time in the absence of VCC starting from the time
power is first applied by the user.
10. All AC and DC electrical characteristics are valid over the full operating temperature range. For
commercial products, this range is 0
°C to 70°C. For industrial products (IND), this range is -40°C to
+85
°C.
11. In a power-down condition the voltage on any pin may not exceed the voltage on VCC.
12. tWR1 and tDH1 are measured from WE going high.
13. tWR2 and tDH2 are measured from CE going high.
14. DS1230 DIP modules are recognized by Underwriters Laboratory (U.L.
) under file E99151.
DS1230 PowerCap modules are pending U.L. review. Contact the factory for status.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS1231SN-50 | Power Supply Supervisor |
| DS1232G | Voltage Detector |
| DS1232GN | Voltage Detector |
| DS1232LPN | (99.22 k) |
| DS1232LPS-2 | (99.22 k) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1231SN-50 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Power Supply Supervisor |
| DS1232 | 功能描述:監(jiān)控電路 MicroMonitor Chip RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| DS1232+ | 功能描述:監(jiān)控電路 MicroMonitor Chip RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| DS1232G | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage Detector |
| DS1232GN | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage Detector |
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