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參數(shù)資料
| 型號： | MAX824 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Parallel-Load 8-Bit Shift Registers 16-CDIP -55 to 125 |
| 中文描述： | 5引腳、微處理器監(jiān)控電路，帶有看門狗定時器及手動復位 |
| 文件頁數(shù)： | 5/8頁 |
| 文件大小： | 78K |
| 代理商： | MAX824 |
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
(MAX824/MAX825
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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PDF描述 |
|---|---|
| MAX824_EUK | Parallel-Load 8-Bit Shift Registers 16-CFP -55 to 125 |
| MAX825 | Parallel-Load 8-Bit Shift Registers 16-CDIP -55 to 125 |
| MAX825_EUK | Parallel-Load 8-Bit Shift Registers 20-LCCC -55 to 125 |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MAX824_EUK | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:5-Pin Microprocessor Supervisory Circuits |
| MAX824_EXK-T | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:5-Pin Microprocessor Supervisory Circuits With Watchdog Timer and Manual Reset |
| MAX824L | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:5-Pin Microprocessor Supervisory Circuits With Watchdog Timer and Manual Reset |
| MAX824LEUK | 制造商:Maxim Integrated Products 功能描述:5-PIN MICROPROCESSOR SUPERVISORY CIRCUITS WITH WATCHDOG TIME - Bulk 制造商:Rochester Electronics LLC 功能描述: |
| MAX824LEUK+ | 制造商:Maxim Integrated Products 功能描述:PROCESSOR SUPERVISOR 4.63V 10UA 5PIN SOT-23 - Bulk |
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