MAX6303

+5V, Low-Power, µP Supervisory Circuits with Adjustable Reset/Watchdog


Please check latest availability status for a specific part variant.

Description

The MAX6301–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 using external capacitors. A watchdog select pin extends the watchdog timeout period to 500x. The reset function features immunity to power-supply transients.

These four devices differ only in the structure of their reset outputs (see the Selector Guide in the full data sheet). The MAX6301–MAX6304 are available in the space-saving 8-pin µMAX® package, as well as 8-pin PDIP and SO packages.
MAX6301, MAX6302, MAX6303, MAX6304: Typical Operating Circuit MAX6301, MAX6302, MAX6303, MAX6304: Typical Operating Circuit Enlarge+

Key Features

  • Adjustable Reset Threshold
  • Adjustable Reset Timeout
  • Adjustable Watchdog Timeout
  • 500x Watchdog Timeout Multiplier
  • 4µA Supply Current
  • RESET or Active-Low RESET Output Options
  • Push-Pull or Open-Drain Output Options
  • Guaranteed Active-Low RESET Asserted At or Above VCC = 1V (MAX6301/MAX6303)
  • Power-Supply Transient Immunity
  • Watchdog Function can be Disabled
  • PDIP/SO/µMAX Packages Available

Applications/Uses

  • Battery-Powered Computers/Controllers
  • Computers: Desktop, Workstation, Server
  • Critical µP Monitoring
  • Embedded Controllers
  • Intelligent Instruments
  • Medical Equipment
  • Portable Equipment
  • Set-Top Boxes
Part NumberReset Thresh.
(V)
Reset OuttRESETWatchdog FeatureWatchdog TimeoutReset Thresh. Accur.
(%)
ICC
(µA)
Package/PinsBudgetary
Price
min@ +25°CmaxSee Notes
MAX6301 
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
Active Low
Open Drain
1ms to 15ms
15ms to 85ms
85ms to 300ms
300ms to 1s
<1ms
>1s
Adjustable
Cap Adjustable
Input (WDI)
1s to 2s
<1s
>2s
Adjustable
27
PDIP/8
SOIC (N)/8
UMAX/8
$2.48 @1k
MAX6302 
Active High
Open Drain
PDIP/8
SOIC (N)/8
UMAX/8
$1.86 @1k
MAX6303 
Active Low
Push-Pull
PDIP/8
SOIC (N)/8
UMAX/8
$2.48 @1k
MAX6304 
Active High
Push-Pull
PDIP/8
SOIC (N)/8
UMAX/8
$1.83 @1k
See All Supervisors (1 Monitored Voltage) (256)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Technical Documents

App Note 474 Precision DAC and Watchdog Improve Analog Output Safety

Quality and Environmental Data

Product Reliability Reports: MAX6303.pdf 
Lead-Free Package Tin (Sn) Whisker Reports
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

Quality Management System >
Environmental Management System >

 
Status:
Package:
Temperature:

Related Resources


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MAX16160
High-Accuracy 4-Channel, Any-Input Supervisory Circuits

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