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The ADM803 supervisory circuit monitors the power supply voltage in microprocessor systems. It provides a reset output during power-up, power-down and brownout conditions. On power-up, an internal timer holds reset asserted for 240ms. This holds the microprocessor in a reset state until conditions have stabilized. The reset output remains operational with VCC as low as 1V. The ADM803 provides an active-low reset signal RESET, and has an open-drain output stage which requires an external pull-up resistor. Seven reset threshold options are available. The reset comparator features built-in glitch immunity, making it immune to fast transients on VCC. The ADM803 is available in 3-lead SC70 and consumes only 17µA, making it suitable for low power portable equipment. Applications Microprocessor Systems Computers Controllers Intelligent Instruments Automotive Systems
| mil_spec | No |
| rohs_status | Non-Compliant |
| supply_voltage_dc | 5.50 V (max) |
| lead_free_status | Contains Lead |
| mounting_style | Surface Mount |
| packaging | Tape, Tape & Reel (TR) |
| case_package | SC-70-3 |
| supply_current | 35.0 µA |
| threshold_voltage | 4.38 V |
| lifecycle_status | Pending Obsolescence |
| pin_count | 3 |
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