DS1832S+

The DS1832S+ is a MicroMonitor Chip is pin-compatible with the industry-standard DS1232 and operates in both 3.0V and 3.3V environments. It is designed with CMOS outputs and is capable of maintaining a valid output on the active low reset to 0 volts with a 100kΩ pull-down resistor. The DS1832 3.3V MicroMonitor monitors three vital conditions for a microprocessor of power supply, software execution and external override. First, a precision temperature-compensated reference and comparator circuit monitor the status of VCC. When an out-of-tolerance condition occurs, an internal power-fail signal is generated which forces the resets to an active state. When VCC returns to an in-tolerance condition, the reset signals are kept in the active state for a minimum of 250 ms to allow the power supply and processor to stabilize.

• Halts and restarts an out-of-control microprocessor
• Holds microprocessor in check during power transients
• Automatically restarts a microprocessor after power failure
• Monitors pushbutton for external override
• Accurate 10 or 20% microprocessor power monitoring
• Eliminates need for discrete components
• 20% Tolerance for use with 3.0V systems
• Pin-compatible with the DS1232

Applications

Industrial

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party