ASM1233D-L/D/M is a low power voltage supervisor from Alliance Semiconductor. It can monitor the input voltage and generate a low level reset signal to the microprocessor if the input voltage is out of range. The maximum supply current of the product is 15μA (3.3V) and 20μA (5V).
The ASM1233D-L/1233D/1233M are voltage supervisors designed to generate an active LOW reset signal when the monitored supply is out of tolerance. These devices utilize a precision reference and comparator circuit to monitor power supply levels with tolerances of 5%, 10%, and 15%. Upon detecting an out-of-tolerance condition, an internal power-fail signal forces the reset output low.
| Maximum Supply Current (3.3V devices) | 15µA |
|---|---|
| Maximum Supply Current (5V devices) | 20µA |
| Reset Delay Time | 350ms |
| Operating Temperature Range | -40°C to +85°C |
| Output Stage Type | Open-Drain |
The reset signal remains active for 350ms to allow stabilization.
The devices are available in SOT-223, SO-8, and TO-92 packages.