Features and Benefits
- Consumes 1/10th the Power of the DS1232
- Precision Voltage MonitorAdjustable +4.5V or +4.75V
- Power-OK/Reset Pulse Width250ms Min
- No External Components
- Adjustable Watchdog Timer150ms, 600ms, or 1.2s
- Debounced Manual Reset Input for External Override
- Available in 8-Pin PDIP/SO and 16-Pin Wide SO Packages
The MAX1232 microprocessor (µP) supervisory circuit provides µP housekeeping and power-supply supervision functions while consuming only 1/10th the power of the DS1232. The MAX1232 enhances circuit reliability in µP systems by monitoring the power supply, monitoring the software execution, and providing a debounced manual reset input. The MAX1232 is a plug-in upgrade of the Dallas DS1232.
A reset pulse of at least 250ms duration is supplied on power-up, power-down, and low-voltage brownout conditions (5% or 10% supply tolerances can be selected digitally). Also featured is a debounced manual reset input that forces the reset outputs to their active states for a minimum of 250ms. A digitally programmable watchdog timer monitors software execution and can be programmed for timeout settings of 150ms, 600ms, or 1.2s. The MAX1232 requires no external components.
- Critical µP Power Monitoring
- Intelligent Instruments
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Documentation & Resources
MAX1232 Reliability Data1/12/2023
MAX1232 Companion Parts
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.
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