General Description

The MIC2788/MIC2789 are low-current, ultra-small, push-button reset supervisors with long set-up delays. The devices feature two manual reset inputs and two reset outputs. The devices initiate a reset for the reset timeout period when the /MR0 and /MR1 inputs are asserted low for a period longer than the set-up delay. The two manual reset inputs and long set-up period help to avoid unintended system resets. Both manual reset inputs can be tied together if a single push-button reset is desired.

特性 Features

? 1.6V to 5.5V operating voltage

? 2.9μA supply current when /MR0, /MR1 are not asserted

? Asserting /MR0 and /MR1 for longer than set-up delay asserts reset output for the reset timeout period

? Programmable delay (PDY) input selects 2.0s, 4.0s or 6.0s set-up delay

? Factory-programmed 140ms (min.) or 240ms (min.) reset timeout period

? Integrated /MR0, /MR1 pull-up resistors (MIC2788)

? Dual Reset Outputs:

? Open-drain active-low reset (/RST) output

? Push-pull active-high reset (RSTP) output

? ?40°C to 85°C ambient operating temperature range

? 8-pin 2mm x 2mm x 0.55mm thin MLF? package

Applications

? Smart phones

? MP3 players

? Portable navigation devices

? Set-top boxes (STBs)

? Tablets/pads