MAX793SCSE+ IC SUPERVISOR 1 CHANNEL 16SOIC Analog Devices Inc./Maxim Integrated
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Detailed Product Description
Product Details
General DescriptionThe 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 below). 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. For similar devices designed for 5V systems, see the µP Supervisory Circuits table at the back of this data sheet.
FeaturesMAX793/MAX794/MAX795♦ 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 MAX793/MAX794 Only ♦ Battery Freshness Seal ♦ Battery OK Output (MAX793) ♦ Uncommitted Voltage Monitor for Power-Fail or Low-Battery Warning ♦ Independent Watchdog Timer (1.6sec timeout) ♦ Manual Reset Input
ApplicationsBattery-Powered Computers and ControllersEmbedded Controllers Intelligent Controllers Critical µP Power Monitoring Portable Equipment
Specifications
Functional compatible componentForm,Package,Functional compatible component
DescriptionsSupervisory Circuits 3/3.3/AdjV MPU Supervisor |
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