The MAX793/MAX794/MAX795 microprocessor (µP) supervisory circuits monitor and control the activities of +3.0V/+3.3V µPs by providing backup-battery switchover, among other features such as low-line indication, µP reset, write protection for CMOS RAM, and a watchdog (see the Selector Guide in the full data sheet). The backup-battery voltage can exceed VCC, permitting the use of 3.6V lithium batteries in systems using 3.0V to 3.3V for VCC. The MAX793/MAX795 offer a choice of reset threshold voltage range (denoted by suffix letter): 3.00V to 3.15V (T), 2.85V to 3.00V (S), and 2.55V to 2.70V (R). The MAX794's reset threshold is set externally with a resistor divider. The MAX793/MAX794 are available in 16-pin DIP and narrow SO packages, and the MAX795 comes in 8-pin DIP and SO packages. Applications * Battery-Powered Computers/Controllers * Critical µP Power Monitoring * Embedded Controllers * Intelligent Controllers * Portable Equipment * Precision Supply-Voltage Monitor: * Fixed Reset Trip Voltage (MAX793/MAX795) * Adjustable Reset Trip Voltage (MAX794) * Guaranteed Reset Assertion to VCC = 1V * Backup-Battery Power Switching—Battery Voltage Can Exceed VCC * On-Board Gating of Chip-Enable Signals—7ns Max Propagation Delay https://elecena.pl/product/22337581/3-0v-3-3v-adjustable-microprocessor-supervisory-circuits 2022-12-29 https://elecena.pl/product/22337581/3-0v-3-3v-adjustable-microprocessor-supervisory-circuits 2025-01-22