On-Board Gating of Chip-Enable Signals, 10ns max Delay
MaxCap® or SuperCap Compatible
Guaranteed Active-Low RESET Assertion to VCC = +1V
Voltage Monitor for Power-Fail or Low-Battery Warning
Available in 16-Pin Narrow SO, Plastic DIP, and TSSOP Packages
MAX693A Applications
Computers: Desktop, Workstation, Server
Controllers
Critical µP Monitoring
Intelligent Instruments
MAX693A Description
The MAX693A microprocessor (µP) supervisory circuits are pin-compatible upgrades to the MAX691, MAX693, and MAX695. They improve performance with 30µA supply current, 200ms typ reset active delay on power-up, and 6ns chip-enable propagation delay. Features include write protection of CMOS RAM or EEPROM, separate watchdog outputs, backup-battery switchover, and an active-low RESET output that is valid with VCC down to 1V. The MAX693A's reset threshold is 4.4V typical.
