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MXD1811XR Datasheet(PDF) 7 Page - Maxim Integrated Products |
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MXD1811XR Datasheet(HTML) 7 Page - Maxim Integrated Products |
7 / 11 page MXD1817 applications where RESET must be valid to VCC = 0, a 100k Ω pullup resistor between RESET and VCC holds RESET high when VCC falls below the mini- mum operating voltage (Figure 9). The MXD1811/MXD1813/MXD1816/MXD1818 have open-drain, active-low outputs with a pullup resistor included internal to the devices. While using these devices RESET will most likely not maintain an active condition when the supply voltage drops below the minimum VCC, but will drift to a nonactive level due to the pullup resistor and the reduced sinking capability of the open-drain output. Therefore, these devices are not recommended for applications where the RESET pin is required to be valid at VCC = 0. Low-Power µP Reset Circuits in 3-Pin SC70/SOT23 _______________________________________________________________________________________ 7 VTH VCC tRP VCC(MIN) tRP RESET RESET Figure 4. Power-Up Reset Timing Diagram MXD1813 MXD1818 VCC RESET RESET MANUAL RESET VCC GND Figure 5. Push-Button Manual Reset (OPEN) VCC EXTERNAL PUSH BUTTON RESET (OPEN) (CLOSED) tPBRST tPBRST SWITCH BOUNCE Figure 6. Manual Reset Timing Diagram |
Similar Part No. - MXD1811XR |
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Similar Description - MXD1811XR |
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