MIC706P/R/S/T, MIC708R/S/T
µP Supervisory Circuit
General Description
The MIC706 and MIC708 are inexpensive microprocessor supervisory circuits that monitor power supplies in 3.
0V and 3.
3V microprocessor-based systems.
The circuit functions include a watchdog timer, microprocessor reset, power-failure warning, and a debounced manual reset input.
The MIC706 offers a watchdog timer function, while the MIC708 has an active-high reset output in addition to the active-low reset output.
The R, S, and T versions are similar in all respects except for supply
voltage reset threshold levels.
The threshold levels are 2.
63, 2.
93, and 3.
08V, respectively.
When the supply
voltage drops below the reset th...