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參數(shù)資料
| 型號(hào)： | MAX824R |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | 5-Pin Microprocessor Supervisory Circuits(復(fù)位門限2.63V,5管腳μP監(jiān)控電路，具看門狗輸入和高有效復(fù)位) |
| 中文描述： | 5引腳、微處理器監(jiān)控電路，帶有看門狗定時(shí)器及手動(dòng)復(fù)位 |
| 文件頁(yè)數(shù)： | 5/8頁(yè) |
| 文件大小： | 81K |
| 代理商： | MAX824R |
M
5-Pin Mic roproc essor S upervisory Circ uits
_______________________________________________________________________________________
5
______________________________________________________________Pin Desc ription
MAX823
MAX824
MAX825
V
CC
V
CC
WDI
(MAX823/MAX824
ONLY)
1.25V
GND
RESET
(
ONLY)
RESET
MR
(MAX823/MAX825
ONLY)
RESET
GENERATOR
WATCHDOG
TIMER
WATCHDOG
TRANSITION
DETECTOR
FUNCTION
1
1
Active-Low Reset Output. Pulses low for 200ms when triggered, and remains
low whenever V
CC
is below the reset threshold or when
MR
is a logic low. It
remains low for 200ms after one of the following occurs: V
CC
rises above the
reset threshold, the watchdog triggers a reset, or
MR
goes low to high.
2
2
Ground. 0V reference for all signals.
3
—
Manual-Reset Input. A logic low on
MR
asserts reset. Reset remains asserted as
long as
MR
is held low and for 200ms after
MR
returns high. The active-low input
has an internal 52k
pull-up resistor. It can be driven from a CMOS-logic line or
shorted to ground with a switch. Leave open or connect to V
CC
if unused.
—
3
Active-High Reset Output. Inverse of
RESET
.
5
5
Supply Voltage
4
4
Watchdog Input. If WDI remains either high or low for longer than the watch-
dog timeout period, the internal watchdog timer runs out and a reset is trig-
gered. The internal watchdog timer clears whenever reset is asserted, or
whenever WDI sees a rising or falling edge. If WDI is left unconnected or is
connected to a three-stated buffer output, the watchdog feature is disabled.
NAME
1
RESET
2
GND
4
MR
3
RESET
5
V
CC
—
WDI
Figure 1. Functional Diagram
MAX824
MAX823
MAX825
PIN
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| MAX824T | 5-Pin Microprocessor Supervisory Circuits(復(fù)位門限3.08V,5管腳μP監(jiān)控電路，具看門狗輸入和高有效復(fù)位) |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX824REUK | 制造商:Maxim Integrated Products 功能描述:- Bulk |
| MAX824REUK+ | 制造商:Maxim Integrated Products 功能描述:PROCESSOR SUPERVISOR 2.63V 5UA 5PIN SOT-23 - Rail/Tube |
| MAX824REUK+T | 功能描述:監(jiān)控電路 5-Pin MPU Supervisor RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)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(kāi)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 |
| MAX824REUK-T | 功能描述:監(jiān)控電路 RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)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(kāi)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 |
| MAX824REXK | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
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