DS1819AR-10/T&R Maxim Integrated Products, DS1819AR-10/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 5%, 10%, or 20% (3V only) microprocessor power ...

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The DS1814/DS1819 ‘A’ and ‘C’ perform pushbutton reset control. They debounce the pushbutton input and generate an active reset pulse width of 140ms minimum. The DS1814/9 ‘A’ and ‘B’ versions perform a watchdog function. The watchdog is an internal timer ...

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DS1814/DS1819 BLOCK DIAGRAM Figure 1 *Notes: available on'A' and 'B' versions ST available on 'A' and 'C' versions PBRST RST available on 'B' and 'C' versions PUSHBUTTON RESET Figure 2 TIMING DIAGRAM: PUSHBUTTON RESET Figure DS1814/DS1819 ...

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WATCHDOG TIMER Figure 4 TIMING DIAGRAM: STROBE INPUT Figure 5 WATCHDOG DISABLE CIRCUIT Figure 6 TIMING DIAGRAM: POWER-DOWN Figure DS1814/DS1819 ...

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TIMING DIAGRAM: POWER-UP Figure 8 VALID TO 0 VOLTS V RST OUTPUT VALID CONDITIONS The output uses a push-pull output which can maintain a valid output down to 1.0V V RST current below 1.0V a resistor can be connected form ...

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

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AC ELECTRICAL CHARACTERISTICS PARAMETER = V PBRST IL Reset Active Time Pulse Width ST Watchdog Time-out V Detect to RST and RST CC V Slew Rate (rising edge Detect to RST and RST CC Stable Low to RST ...

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PART MARKING CODES ‘A’, ‘B’ and ‘C’ represents the Device Type. 14A - DS1814A 14B - DS1814B 14C - DS1814C 19A - DS1819A 19B - DS1819B 19C - DS1819C SOT-23-5 PACKAGE ‘D’ represents the Device Tolerance ...