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參數資料
| 型號： | MAX814LEPA |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | DIP SWITCH |
| 中文描述： | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDIP8 |
| 封裝： | 0.300 INCH, PLASTIC, DIP-8 |
| 文件頁數： | 1/11頁 |
| 文件大小： | 218K |
| 代理商： | MAX814LEPA |
M
Low-Cost, μP Supervisory Circuits
________________________________________________________________
Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
TOP VIEW
1
2
3
4
8
7
6
5
WDO
RESET (RESET)
WDI
PFO
PFI
GND
V
CC
MR
DIP/SO
MAX705
MAX706
MAX813L
1
2
3
4
8
7
6
5
RESET
RESET
N.C.
PFO
PFI
GND
V
CC
MR
DIP/SO
MAX707
MAX708
( ) ARE FOR MAX813L ONLY.
Pin Configurations continued at end of data sheet.
_________________Pin Configurations
V
CC
PFI
MR
PFO
WDO
RESET
PFI
UNREGULATED DC
PUSHBUTTON
SWITCH
I/O LINE
NMI
INTERRUPT
μ
P
MAX705
MAX706
MAX813L
MAX667
+5V DC LINEAR
REGULATOR
V
CC
RESET
__________Typical Operating Circuit
19-4334; Rev. 6; 8/01
_______________General Description
The MAX705-MAX708/MAX813L microprocessor (μP)
supervisory circuits reduce the complexity and number
of components required to monitor power-supply and
battery functions in μP systems. These devices signifi-
cantly improve system reliability and accuracy com-
pared to separate ICs or discrete components.
The MAX705/MAX706/MAX813L provide four functions:
1) A reset output during power-up, power-down, and
brownout conditions.
2) An independent watchdog output that goes low if
the watchdog input has not been toggled within 1.6
seconds.
3) A 1.25V threshold detector for power-fail warning,
low-battery detection, or for monitoring a power sup-
ply other than +5V.
4) An active-low manual-reset input.
The MAX707/MAX708 are the same as the MAX705/
MAX706, except an active-high reset is substituted for
the watchdog timer. The MAX813L is the same as the
MAX705, except RESET is provided instead of RESET.
Two supply-voltage monitor levels are available: The
MAX705/MAX707/MAX813L generate a reset pulse when
the supply voltage drops below 4.65V, while the
MAX706/MAX708 generate a reset pulse below 4.40V.
All four parts are available in 8-pin DIP, SO and μMAX
packages.
_______________________Applications
Computers
Controllers
Intelligent Instruments
Automotive Systems
Critical μP Power Monitoring
___________________________Features
o
μMAX Package: Smallest 8-Pin SO
o
Guaranteed RESET Valid at V
CC
= 1V
o
Precision Supply-Voltage Monitor
4.65V in MAX705/MAX707/MAX813L
4.40V in MAX706/MAX708
o
200ms Reset Pulse Width
o
Debounced TTL/CMOS-Compatible
Manual-Reset Input
o
Independent Watchdog Timer—1.6sec Timeout
(MAX705/MAX706)
o
Active-High Reset Output
(MAX707/MAX708/MAX813L)
o
Voltage Monitor for Power-Fail or Low-Battery
Warning
______________Ordering Information
PART
TEMP. RANGE
0°C to +70°C
PIN-PACKAGE
8 Plastic DIP
8 SO
8 μMAX
MAX705
CPA
MAX705CSA
MAX705CUA
0°C to +70°C
0°C to +70°C
MAX705C/D
0°C to +70°C
Dice*
Ordering Information continued at end of data sheet.
* Dice are specified at T
A
= +25°C.
**Contact factory for availability and processing to MIL-STD-883.
相關PDF資料 |
PDF描述 |
|---|---|
| MAX814LESA | DIP SWITCH |
| MAX814NCPA | DIP SWITCH |
| MAX814NCSA | Voltage Detector |
| MAX814NEPA | Voltage Detector |
| MAX814NESA | Voltage Detector |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX814LEPA+ | 功能描述:監控電路 3V & 5V uPower Supervisor RoHS:否 制造商:STMicroelectronics 監測電壓數: 監測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監視器:No Watchdog 電池備用開關:No Backup 上電復位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| MAX814LESA | 功能描述:監控電路 RoHS:否 制造商:STMicroelectronics 監測電壓數: 監測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監視器:No Watchdog 電池備用開關:No Backup 上電復位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| MAX814LESA+ | 功能描述:監控電路 3V & 5V uPower Supervisor RoHS:否 制造商:STMicroelectronics 監測電壓數: 監測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監視器:No Watchdog 電池備用開關:No Backup 上電復位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| MAX814LESA+T | 功能描述:監控電路 3V & 5V uPower Supervisor RoHS:否 制造商:STMicroelectronics 監測電壓數: 監測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監視器:No Watchdog 電池備用開關:No Backup 上電復位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| MAX814LESA-T | 功能描述:監控電路 RoHS:否 制造商:STMicroelectronics 監測電壓數: 監測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監視器:No Watchdog 電池備用開關:No Backup 上電復位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
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