The DS1832 3.3-volt MicroMonitor Chip is pin-compatible with the industry-standard DS1232 and operates in both 3.0- and 3.3-volt environments. Like the DS1232, the DS1832 monitors power supply, software execution, and an external pushbutton override. 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. On power-up, the DS1832 holds reset for 250ms to allow the system to stabilize.
Moving a design from 5 volts to 3.3 volts can be as simple as substituting the DS1832 for the DS1232 and removing the pull-up resistor on the active low reset. This makes it a versatile, space- and cost-saving monitor for any processor-driven system requiring reliable operation.

Power-fail detection
Pushbutton reset
Watchdog timer
Active high and low resets
Quiescent current less than 35μA
Operating ranges:
-40°C to +85°C
3.0V with 20% tolerance or
3.3V with 10% or 20% tolerance

Select all	Attribute	Value
	Brand	Maxim Integrated
	Number of Supervisors	1
	Watchdog Timer	Yes
	Power Fail Detection	Yes
	Output Driver	Active High, Active Low
	Maximum Reset Active Time	1000ms
	Mounting Type	Surface Mount
	Package Type	SOIC
	Pin Count	8
	Dimensions	5 x 4 x 1.5mm
	Maximum Operating Supply Voltage	5.5 V
	Minimum Operating Supply Voltage	1 V
	Maximum Operating Temperature	+85 °C
	Minimum Operating Temperature	-40 °C

	Select all
	Brand Maxim Integrated
	Number of Supervisors 1
	Watchdog Timer Yes
	Power Fail Detection Yes
	Output Driver Active High, Active Low
	Maximum Reset Active Time 1000ms
	Mounting Type Surface Mount
	Package Type SOIC
	Pin Count 8
	Dimensions 5 x 4 x 1.5mm
	Maximum Operating Supply Voltage 5.5 V
	Minimum Operating Supply Voltage 1 V
	Maximum Operating Temperature +85 °C
	Minimum Operating Temperature -40 °C

Maxim Integrated Voltage Supervisor 8-Pin SOIC, DS1832S+T&R

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