The MAX6866UK16D3S+T is a nanopower microprocessor (μP) supervisory circuit with manual reset input and watchdog timer in 5 pin SOT-23 package. This microprocessor (μP) supervisory circuit combines voltage monitoring, watchdog timer and manual reset input functions. The device asserts a reset signal whenever the monitored voltage drops below factory trimmed reset threshold voltage, manual reset is asserted or watchdog timer expires. The reset output remains asserted for a minimum timeout period after VCC rises above the reset threshold and manual reset is deasserted. The watchdog timer monitors activity at the WDI input to prevent code execution errors.
Supply voltage range from 1.2V to 5.5V
Operating temperature range from -40°C to 85°C
Active-low, open-drain reset output
Ultra low supply current of 170nA at VCC = 1.8V
Immune to short VCC transients
Reset valid to VCC = +1.1V
No external components are required
Threshold voltage of 1.575V and reset timeout period of 225ms
(EN)
