Datasheet for MAX6746-MAX6753 low-power microprocessor supervisory circuits featuring adjustable reset and watchdog timeouts.
The MAX6746–MAX6753 are low-power microprocessor (μP) supervisory circuits designed to monitor single or dual system supply voltages ranging from 1.575V to 5V. These devices provide maximum adjustability for reset and watchdog functions, asserting a reset signal when the supply voltage or manual reset input falls below specific thresholds. The reset output remains asserted for a configurable timeout period after the voltage rises above the threshold, offering immunity to power-supply transients.
| Supply Voltage Range | 1.0V to 5.5V |
|---|---|
| Operating Temperature Range | -40°C to +125°C |
| Supply Current (VCC ≤ 5.5V) | 5 µA |
| Reset Threshold Range | 1.575V to 5.0V |
| Package Type | 8-Pin SOT23 |
| Reset Timeout Period (CSRT = 1500pF) | 5.692 ms to 9.487 ms |
The devices monitor single/dual system supply voltages from 1.575V to 5V.
The reset timeout period is adjustable using external capacitors.
Yes, the MAX6746–MAX6751 contain a watchdog select input, while the MAX6752/MAX6753 contain a window watchdog timer.