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The RT9829 has two combined delayed reset inputs (<span class="overline">SR0</span>, <span class="overline">SR1</span>) with a user selectable delayed setup time (t<sub>SRC</sub>) option of either 7.5s or 12.5s (typ.), selectable via the dual-state DSR input pin. When DSR is connected to ground, t<sub>SRC</sub> = 7.5s (typ.); when connected to V<sub>CC</sub>, t<sub>SRC</sub> = 12.5s (typ.). There are two reset outputs which become active simultaneously after both of the reset inputs are held active for the selected t<sub>SRC</sub> delay time. The outputs remain asserted until either or both inputs go to inactive logic level (for this device the output reset pulse duration is fully push-button controlled, meaning neither fixed nor minimum reset pulse width, nor power on reset pulse is implemented). The first reset output, <span class="overline">RST1</span>, is active low, open drain; the second reset output, RST2, is active high, push-pull. The device fully operates over a broad V<sub>CC</sub> range from 1.65V to 5.5V. Below 1.575V (typ.), the inputs are ignored and the outputs are de-asserted. The de-asserted reset output levels are then valid down to 1V. The RT9829 is available in a tiny WDFN-8L 2x2 (COL) package.
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<div class="spec-list"><ul class="lv1"><li>Dual Reset Push-Button Inputs <ul class="lv2"> <li></li><li>User Selectable Delay Setup Time : 7.5s and 12.5s (typ.) </li></ul> </li><li>Push-Button Controlled Reset Pulse Duration <ul class="lv2"> <li></li><li>No Fixed nor Minimum Pulse Width Guaranteed </li></ul> </li><li>No Power On Reset </li><li>Dual Reset Outputs <ul class="lv2"> <li></li><li><span class="overline">RST1</span> : Active Low, Open-Drain </li><li>RST2 : Active High, Push-Pull </li></ul> </li><li>Fixed Reset Input Logic Voltage Levels </li><li>Broad Operating Voltage Range : 1.65V to 5.5V <ul class="lv2"> <li></li><li>Inactive Reset Output Levels Valid Down to 1V </li></ul> </li><li>2μA Low Supply Current </li><li>Operating Temperature : -40°C to 85°C </li><li>Small Thermally Enhanced 8-Lead WDFN Package </li><li>RoHS Compliant and Halogen Free </li></ul></div>
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<div class="spec-list"><ul class="lv1"><li>Mobile phones, Smartphones </li><li>e-Books </li><li>MP3 Players </li><li>Games </li><li>Portable Navigation Devices </li></ul></div>
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