DS1232SN+

The DS1232SN+ by Analog Devices is a MicroMonitor chip designed to oversee critical conditions for microprocessors, including power supply status, software execution, and external override. It provides accurate power supply monitoring at 4.37V or 4.62V, with reset signals that become active when VCC falls below these thresholds. The chip ensures a minimum reset pulse width of 250 ms to allow for system stabilization.

This supervisor IC also incorporates a watchdog timer function, which forces reset signals to an active state if a strobe input is not driven low before timeout. The reset timeout can be adjusted or selected to meet specific application needs. Additionally, it monitors a pushbutton for external override, debouncing the input and guaranteeing an active reset pulse.

Packaged in a 16-SOIC surface mount configuration, the DS1232SN+ is suitable for industrial applications, operating within a temperature range of -40°C to 85°C. Its design eliminates the need for discrete components, offering a space-saving solution for robust system monitoring.

Key specifications include a single voltage monitored, active high/active low reset output, and open drain/push-pull output types. The device is RoHS3 compliant and has an MSL rating of 1.