The MAX703/MAX704 microprocessor (µP) supervisory circuits reduce the complexity and number of components required for power-supply monitoring and battery control functions in µP systems. These devices significantly improve system reliability and accuracy compared to that obtained with separate ICs or discrete components. The MAX703/MAX704 are available in 8-pin DIP and SO packages and provide four functions: * An active-low reset during power-up, power-down, and brownout conditions. * Battery-backup switching for CMOS RAM, CMOS µPs, or other low-power logic circuitry. * A 1.25V threshold detector for power-fail warning, low-battery detection, or for monitoring a power supply other than +5V. * An active-low manual reset input. The MAX703 and MAX704 differ only in their supply-voltage monitor levels. The MAX703 generates a reset when the supply drops below 4.65V, while the MAX704 generates a reset below 4.40V.Applications * Computers * Controllers * Critical µP Power Monitoring * Intelligent Instruments * Battery-Backup Power Switching * Precision Supply-Voltage Monitor * 4.65V (MAX703) * 4.40V (MAX704) * 200ms Reset Pulse Width * Debounced TTL/CMOS-Compatible Manual Reset Input * 200µA Quiescent Current * 50nA Quiescent Current in Battery-Backup Mode * Voltage Monitor for Power-Fail or Low-Battery Warning * 8-Pin DIP and SO Packages * Guaranteed RESET-bar Assertion to VCC = 1V https://elecena.pl/product/22332597/low-cost-microprocessor-supervisory-circuits-with-battery-backup 2022-12-28 https://elecena.pl/product/22332597/low-cost-microprocessor-supervisory-circuits-with-battery-backup 2025-01-20