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MAX6351UVUT+ PDF预览

MAX6351UVUT+

更新时间: 2024-10-28 13:10:47
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美信 - MAXIM 微处理器监控
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MAX6351UVUT+ 数据手册

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19-1508; Rev 1; 10/99  
Dual/Triple-Voltage  
µP Supervisory Circuits  
51–MAX360  
General Description  
Features  
The MAX6351–MAX6360 microprocessor (µP) supervi-  
sors with multiple reset voltages significantly improve  
system reliability and accuracy compared to separate  
ICs or discrete components. If any input supply voltage  
drops below its associated preset threshold, all reset  
outputs are asserted. In addition, the output(s) is valid  
as long as either input supply voltage remains greater  
than +1.0V.  
Precision Monitoring of Multiple +2.5V, +3.0V,  
+3.3V, and +5V Power-Supply Voltages  
Precision Factory-Set Power-Supply  
Reset Thresholds  
20µA Supply Current  
100ms min Power-On Reset Pulse Width  
Fully Guaranteed Over Temperature  
All devices in this series have an active-low debounced  
manual reset input. In addition, the MAX6358/MAX6359/  
MAX6360 offer a watchdog timer input with a 46.4sec  
start-up timeout period and a 2.9sec timeout period.  
The MAX6355/MAX6356/MAX6357 offer an additional  
voltage monitor input to monitor a third voltage.  
Guaranteed RESET Valid to V 5 = 1V or  
CC  
V
3 = 1V  
CC  
Power-Supply Transient Immunity  
No External Components for Dual-Voltage  
The MAX6351 features both 3V and 5V active-low push-  
pull reset outputs. The MAX6353/MAX6356/MAX6359  
offer a 5V active-low push-pull reset. The MAX6354/  
MAX6357/MAX6360 offer a 3V active-low push-pull  
reset. The MAX6352/MAX6355/MAX6358’s reset is  
active-low open-drain.  
Systems  
Small 5- and 6-Pin SOT23 Packages  
Debounced TTL/CMOS-Compatible  
Manual-Reset Input  
Watchdog Timer  
All of these devices are offered with a wide variety of  
voltage threshold levels, as shown in the Voltage  
Threshold Levels table below. They are available in 5-  
and 6-pin SOT23 packages and operate over the  
extended (-40°C to +85°C) temperature range.  
46.4sec Start-Up Timeout  
2.9sec Normal Timeout  
Low Cost  
Applications  
Intelligent Instruments  
Multivoltage Systems  
Ordering Information  
Computers  
Controllers  
Portable/Battery-Powered  
Equipment  
PART*  
TEMP. RANGE  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
PIN-PACKAGE  
6 SOT23-6  
5 SOT23-5  
5 SOT23-5  
5 SOT23-5  
6 SOT23-6  
6 SOT23-6  
6 SOT23-6  
6 SOT23-6  
6 SOT23-6  
6 SOT23-6  
MAX6351_ _UT-T  
MAX6352_ _UK-T  
MAX6353_ _UK-T  
MAX6354_ _UK-T  
MAX6355_ _UT-T  
MAX6356_ _UT-T  
MAX6357_ _UT-T  
MAX6358_ _UT-T  
MAX6359_ _UT-T  
MAX6360_ _UT-T  
__________Voltage Threshold Levels  
PART NO.  
SUFFIX  
(_ _)  
V
5 NOMINAL  
VOLTAGE  
V 3 NOMINAL  
CC  
CC  
VOLTAGE  
THRESHOLD (V)  
THRESHOLD (V)  
LT  
LS  
LR  
MT  
MS  
MR  
TY  
4.63  
4.63  
4.63  
4.38  
4.38  
4.38  
3.08  
2.93  
3.08  
2.93  
2.63  
3.08  
2.93  
2.63  
2.19  
2.19  
*The _ _ are placeholders for the threshold voltage levels of the  
devices. Substitute the part number suffix in the Voltage  
Threshold Levels table for the desired voltage level. There are  
two standard versions for each of the above part numbers. All  
devices are available in tape-and-reel only.  
SY  
Note: Standard versions are shown in bold and have a required  
order increment of 2500 pieces. Sample stock is generally held on  
the standard versions only. The required order increment for non-  
standard versions is 10,000 pieces. Contact factory for availability.  
Pin Configurations appear at end of data sheet.  
Selector Guide appears at end of data sheet.  
________________________________________________________________ Maxim Integrated Products  
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.  
For small orders, phone 1-800-835-8769.  

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