
Dallas Semiconductor -> Maxim Integrated
DESCRIPTION
The DS1707/DS1708 3.3 or 5.0 Volt MicroMonitor monitors three vital conditions for a microprocessor: power supply, voltage sense, and external override. A precision temperature–compensated reference and comparator circuit monitors the status of VCC at the device and at an upstream point for maximum protection. When the sense input detects an out–of–tolerance condition a non–maskable interrupt is generated.
FEATURES
• Holds microprocessor in check during power transients
• Automatically restarts microprocessor after power failure
• Monitors pushbutton for external override
• Accurate 5%, 10% or 20% resets for 3.3 systems and 5% or 10% resets for 5.0 volt systems
• Eliminates the need for discrete components
• 20% tolerance compatible with 3.0 volt systems
• Pin compatible with the MAXIM MAX707/MAX708 in 8–pin DIP and 8–pin SOIC packages
• 8–pin DIP, 8–pin SOIC and 8–pin µ–SOP packages available
• Industrial temperature range –40°C to +85°C