MAX691A Datasheet

Part No.

In Stock

Price

Packaging

SPQ

Marking

MSL

Pins

Temp Range

Package Description

• 200ms Power-OK/Reset Timeout Period
• 1µA Standby Current, 30µA Operating Current
• On-Board Gating of Chip-Enable Signals, 10ns max Delay
• MaxCap® or SuperCap Compatible
• Guaranteed Active-Low RESET Assertion to V_CC = +1V
• Voltage Monitor for Power-Fail or Low-Battery Warning
• Available in 16-Pin Narrow SO, Plastic DIP, and TSSOP Packages

• Computers: Desktop, Workstation, Server
• Controllers
• Critical µP Monitoring
• Intelligent Instruments

The MAX691A 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 V_CC down to 1V. The MAX691A have a 4.65V typical reset-threshold voltage.