參數(shù)資料
型號(hào)： MAX6842
廠商： Maxim Integrated Products, Inc.
英文描述： Ultra-Low-Voltage &#181.P Reset Circuits and Voltage Detectors
中文描述： 超低電壓微處理器復(fù)位電路及電壓檢測器
文件頁數(shù)： 4/7頁
文件大?。?/td> 147K
代理商： MAX6842
M
3-Pin, Low-Power
μP Reset Circuits
4
_______________________________________________________________________________________
V
CC
V
CC
GND
MAX6802
RESET
V
CC
GND
RESET
MOTOROLA
68HCXX
μ
P
100k
Applications Information
Interfacing to μPs with Bidirectional
Reset Pins
Since the
RESET
output on the MAX6802 is open-drain,
this device interfaces easily with μPs that have bidirec-
tional reset pins, such as the Motorola 68HC11.
Connecting the μP supervisor
’
s
RESET
output directly
to the microcontroller
’
s (μC
’
s)
RESET
pin with a single
pullup resistor allows either device to assert reset
(Figure 1).
Negative-Going V
CC
Transients
In addition to issuing a reset to the μP during power-up,
power-down, and brownout conditions, these devices are
relatively immune to short-duration, negative-going V
CC
transients (glitches). The
Typical Operating Characteristics
show the Maximum Transient Duration vs. Reset
Comparator Overdrive graph. The graph shows the maxi-
mum pulse width that a negative-going V
CC
transient may
typically have without issuing a reset signal. As the ampli-
tude of the transient increases, the maximum allowable
pulse width decreases.
Figure 1. Interfacing to μPs with Bidirectional Reset Pins
TOP VIEW
1
2
3
V
CC
RESET (RESET)
MAX6800
MAX6801
MAX6802
SOT23-3
( ) ARE FOR MAX6800
GND
Pin Configuration
Figure 2. Ensuring Reset Valid Down to V
CC
= 0
V
CC
GND
MAX6801
RESET
100k
(a)
V
CC
GND
MAX6800
RESET
100k
*
(b)
*ASSUMES HIGH-Z RESET INPUT TO THE
μ
P
MAX6801
V
CC
V
CC
RESET
RESET
GND
V
CC
GND
μ
P
Typical Operating Circuit
相關(guān)PDF資料
PDF描述
MAX6843 Ultra-Low-Voltage &#181.P Reset Circuits and Voltage Detectors
MAX6844 Ultra-Low-Voltage &#181.P Reset Circuits and Voltage Detectors
MAX6845 Ultra-Low-Voltage &#181.P Reset Circuits and Voltage Detectors
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX6842DUKD0 制造商:Maxim Integrated Products 功能描述:- Cut Tape Product
MAX6842DUKD0+ 制造商:Maxim Integrated Products 功能描述:PROCESSOR SUPERVISOR 0.788V 8.1UA 5PIN SOT-23 - Cut Tape Product
MAX6842DUKD0+T 功能描述:監(jiān)控電路 Single uPower Reset Circuit 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
MAX6842DUKD0-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(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
MAX6842DUKD1 制造商:Maxim Integrated Products 功能描述:- Rail/Tube
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