Description

The MAX703CSA+T is a microprocessor (μP) supervisory circuit that simplifies power-supply monitoring and battery control functions. It improves system reliability and accuracy by integrating multiple functions into a single device. This device is available in 8-pin DIP and SO packages.

Specifications and features

• Active-low reset during power-up, power-down, and brownout conditions
• Battery-backup switching for CMOS RAM, CMOS μPs, or other low-power logic circuitry
• 1.25V threshold detector for power-fail warning, low-battery detection, or for monitoring a power supply other than +5V
• Active-low manual reset input
• Battery-Backup Power Switching
• Precision Supply-Voltage Monitor with thresholds of 4.65V (MAX703) and 4.40V (MAX704)
• 200ms Reset Pulse Width
• Debounced TTL/CMOS-Compatible Manual Reset Input
• 200μA Quiescent Current
• 50nA Quiescent Current in Battery-Backup Mode
• Voltage Monitor for Power-Fail or Low-Battery Warning
• Available in 8-Pin DIP and SO Packages
• Guaranteed RESET Assertion to VCC = 1V

Application Scenarios

The MAX703CSA+T is suitable for various applications, including computers, controllers, intelligent instruments, and critical μP power monitoring.

Comparison

• Integration of multiple functions reduces component count
• Improved system reliability and accuracy
• Compact package options (8-pin DIP and SO)

• Specific supply voltage monitor levels (4.65V for MAX703 and 4.40V for MAX704)