MAX1232 Maxim Integrated Products, MAX1232 Datasheet
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MAX1232
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MAX1232 Summary of contents
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... DS1232. The MAX1232 enhances circuit reliability in µP systems by monitoring the power supply, monitor- ing 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) ...
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Microprocessor Monitor ABSOLUTE MAXIMUM RATINGS Voltage on Any Pin (with respect to GND)……………-1V to +7V Operating Temperature Range C Suffix ………………………………………………0°C to +70°C E Suffix.……………………………………………-40°C to +85°C M Suffix .…………………………………………-55°C to +125°C Stresses beyond those listed under “Absolute Maximum Ratings” ...
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AC Electrical Characteristics (V = +5V ±10 MIN MAX PARAMETER SYMBOL PBRST (Note 5) PBRST Delay Reset Active Time ST Pulse Width ST Timeout Period V Fall Time (Note ...
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... If a hardware or software failure keeps ST from toggling within the mini- mum timeout period—ST is activated only by falling edges (a high-to-low transition)—the MAX1232 reset outputs are forced to their active states for 250ms (Figure 2). This typically initiates the microprocessor’s power-up routine ...
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RST PBD V IL RST RST Figure 3. Pushbutton Reset. The debounced PBRST input ignores input pulses less than 1ms and is guaranteed to rec- ognize pulses of 20ms or greater +4.75V ...
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... CC MAX1232CWE MAX1232EPA MAX1232ESA MAX1232EWE MAX1232MJA Ordering Information continued on last page. * Contact factory for dice specifications. Devices in PDIP and SO packages are available in both leaded and lead-free packaging. Specify lead free by adding the + symbol at the end of the part number when ordering. Lead free 0.099" ...