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參數(shù)資料
| 型號： | MAX6831 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | 16-Bit Shift Registers 24-CDIP -55 to 125 |
| 中文描述： | 雙路、超低電壓、SOT23封裝、微處理器監(jiān)控電路，帶有手動復位及看門狗定時器 |
| 文件頁數(shù)： | 8/12頁 |
| 文件大?。?/td> | 205K |
| 代理商： | MAX6831 |
Detailed Description
RESET
/RESET Output
A microprocessor
’
s (μP
’
s) reset input starts the μP in a
known state. The MAX6826
–
MAX6831 μP supervisory
circuits assert a reset to prevent code-execution errors
during power-up, power-down, and brownout condi-
tions. Whenever a monitored voltage falls below the
reset threshold, the reset output asserts low for
RESET
and high for RESET. Once all monitored voltages
exceed their reset thresholds, an internal timer keeps
the reset output asserted for the specified reset timeout
period (t
RP
); after this interval, reset output returns to its
original state (Figure 3).
Manual Reset Input
Many μP-based products require manual-reset capabil-
ity, allowing the operator, a test technician, or external
logic circuitry to initiate a reset. A logic low on
MR
asserts a reset. Reset remains asserted while
MR
is
low, and for the timeout period (140ms min) after it
returns high.
MR
has an internal 50k
pullup resistor,
so it can be left open if not used. This input can be dri-
ven with CMOS logic levels or with open-drain/collector
M
Dual Ultra-Low-Voltage SOT23 μP Supervisors
with Manual Reset and Watchdog Timer
8
_______________________________________________________________________________________
MAX6829/MAX6830/MAX6831
V
CC
V
CC2
V
CC
WDI
OR
RESET
RESET
MR
RESET TIMEOUT
DELAY GENERATOR
1.26V
0.63V
WATCHDOG
TIMER
WATCHDOG
TRANSITION
DETECTOR
Figure 2. Functional Diagram of V
CC2
V
CC
1V
1V
t
RD
V
TH
V
TH
t
RD
RESET
GND
RESET
t
RP
t
RP
Figure 3. Reset Timing Diagram
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PDF描述 |
|---|---|
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| MAX682 | 3.3V-Input to Regulated 5V-Output Charge Pumps(3.3V輸入電壓，可調(diào)，５V輸出電荷泵) |
| MAX683EUA | 3.3V-Input to Regulated 5V-Output Charge Pumps |
| MAX684 | 3.3V-Input to Regulated 5V-Output Charge Pumps |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX6831RDUT | 制造商:Maxim Integrated Products 功能描述:DUAL ULTRA LOW VOLTAGE SOT23 MICROP - Cut Tape Product |
| MAX6831RDUT+T | 功能描述:監(jiān)控電路 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 人工復位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):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 |
| MAX6831RDUT-T | 功能描述:監(jiān)控電路 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 人工復位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):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 |
| MAX6831REUT | 制造商:Maxim Integrated Products 功能描述:DUAL ULTRA LOW VOLTAGE SOT23 MICROP - Cut Tape Product |
| MAX6831REUT+T | 功能描述:監(jiān)控電路 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 人工復位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):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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