DS1832S/T&R Maxim Integrated Products, DS1832S/T&R Datasheet

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FEATURES Halts and restarts an out-of-control microprocessor Holds microprocessor in check during power transients Automatically restarts microprocessor after power failure Monitors pushbutton for external override Accurate 10% or 20% microprocessor power monitoring Eliminates need for discrete components 20% tolerance ...

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The second function the DS1832 performs is pushbutton reset control. The DS1832 debounces the pushbutton input and guarantees an active reset pulse width of 250 ms minimum. The third function is a watchdog timer. The DS1832 has an internal timer ...

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MICROMONITOR BLOCK DIAGRAM Figure 1 PUSHBUTTON RESET Figure 2 TIMING DIAGRAM: PUSHBUTTON RESET Figure DS1832 ...

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WATCHDOG TIMER Figure 4 WATCHDOG TIMEOUTS Table 1 TD GND Float V CC TIMING DIAGRAM: STROBE INPUT Figure 5 TIMING DIAGRAM: POWER DOWN Figure 6 TIMEOUT MIN TYP 62.5 ms 150 ms 250 ms 600 ms 500 ms 1200 ms ...

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TIMING DIAGRAM: POWER-UP Figure 7 VALID TO 0 VOLTS V RST OUTPUT VALID CONDITIONS The output uses a push-pull output which can maintain a valid output down to 0.8 volts V RST current below 0.8 volts a resistor can be ...

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ABSOLUTE MAXIMUM RATINGS* Voltage on any Pin Relative to Ground Voltage on I/O Relative to Ground Operating Temperature Storage Temperature Soldering Temperature * This is a stress rating only and functional operation of the device at these or any other ...

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AC ELECTRICAL CHARACTERISTICS PARAMETER = V PBRST IL RESET Active Time Pulse Width ST V Detect to RST and RST CC V Slew Rate CC V Detect to RST and RST CC V Slew Rate CC Stable Low to and ...