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MAX6304

更新时间： 2024-11-10 22:12:35
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美信 - MAXIM 监控
页数 文件大小 规格书
12页 103K
描述
+5V, Low-Power uP Supervisory Circuits with Adjustable Reset/Watchdog

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MAX6304 数据手册

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19-1078; Rev 0; 6/96  
+5 V, Lo w -P o w e r µP S u p e rvis o ry Circ u it s  
w it h Ad ju s t a b le Re s e t /Wa t c h d o g  
1–MAX6304  
_______________Ge n e ra l De s c rip t io n  
____________________________Fe a t u re s  
♦ Adjustable Reset Threshold  
The MAX6301/MAX6302/MAX6303/MAX6304* low-  
power microprocessor (µP) supervisory circuits provide  
maximum adjustability for reset and watchdog functions.  
The reset threshold can be adjusted to any voltage  
above 1.22V, using external resistors. In addition, the  
reset and watchdog timeout periods are adjustable  
us ing e xte rna l c a p a c itors . A wa tc hd og s e le c t p in  
extends the watchdog timeout period to 500x. The reset  
function features immunity to power-supply transients.  
♦ Adjustable Reset Timeout  
♦ Adjustable Watchdog Timeout  
♦ 500x Watchdog Timeout Multiplier  
♦ 4µA Supply Current  
RESET Output Options  
♦ RESET or  
♦ Push/Pull or Open-Drain Output Options  
♦ Guaranteed RESET Asserted At or Above  
These four devices differ only in the structure of their reset  
outputs (see Selector Guide). The MAX6301–MAX6304  
are available in the space-saving 8-pin µMAX package,  
as well as 8-pin DIP/SO.  
V
= 1V (MAX6301/MAX6303)  
CC  
♦ Power-Supply Transient Immunity  
♦ Watchdog Function Can Be Disabled  
♦ DIP/SO/µMAX Packages Available  
________________________Ap p lic a t io n s  
Medical Equipment  
Intelligent Instruments  
Portable Equipment  
Embedded Controllers  
Critical µP Monitoring  
Set-Top Boxes  
______________Ord e rin g In fo rm a t io n  
PART  
TEMP. RANGE  
0°C to +70°C  
0°C to +70°C  
0°C to +70°C  
-40°C to +85°C  
-40°C to +85°C  
PIN-PACKAGE  
8 Plastic DIP  
8 SO  
Battery-Powered  
Computers/Controllers  
Computers  
MAX6301CPA  
MAX6301CSA  
MAX6301CUA  
MAX6301EPA  
MAX6301ESA  
_____________________S e le c t o r Gu id e  
8 µMAX  
8 Plastic DIP  
8 SO  
FEATURE  
MAX6301 MAX6302 MAX6303 MAX6304  
Active-Low  
Reset  
✓
✓
—
✓
✓
—
Ordering Information continued at end of data sheet.  
Active-High  
Reset  
✓
—
—
—
✓
__________Typ ic a l Op e ra t in g Circ u it  
Open-Drain  
Reset Output  
✓
—
V
IN  
MAX6301  
ONLY  
Push/Pull  
Reset Output  
✓
—
—
8-DIP/SO/ 8-DIP/SO/ 8-DIP/SO/ 8-DIP/SO/  
µMAX µMAX µMAX µMAX  
R1  
Pins-Package  
1
2
8
7
R
L
V
RESET IN  
GND  
CC  
0.1µF  
R2  
__________________P in Co n fig u ra t io n  
RESET  
(RESET)  
RESET  
TOP VIEW  
µP  
V
RESET IN  
GND  
MAX6301  
R
L
1
2
3
4
8
7
6
5
CC  
MAX6302  
ONLY  
MAX6302  
MAX6303  
MAX6304  
3
4
WDI  
6
5
RESET (RESET)  
WDI  
SRT  
I/O  
MAX6301  
MAX6302  
MAX6303  
MAX6304  
SWT  
WDS  
SRT  
C
SRT  
C
SWT  
WDS  
SWT  
WDS = 0 FOR NORMAL MODE  
WDI = 1 FOR EXTENDED MODE  
DIP/SO/µMAX  
( ) ARE FOR MAX6302/MAX6304.  
( ) ARE FOR MAX6302/MAX6304.  
* Patents pending  
________________________________________________________________ Maxim Integrated Products  
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800  
1234567...12

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