MIC2782 Push Button Reset IC

By Microchip Technology 104

MIC2782 Push Button Reset IC

Microchip's MIC2782 is a two input, two output push button reset IC. It will generate a reset pulse for a factory programmed reset timeout period after both manual reset inputs have been held to a logic-low for the factory programmed setup period. The MIC2782 also has an ANDOUT logic output which will activate if both inputs are held low for longer than a debounce time (1.5 ms), and deactivate if one or both inputs are released for longer than a debounce time (1.5 ms). The RESET and ANDOUT outputs are active-low, open-drain NMOS outputs.

The MIC2782 operates over the 1.5 V to 5.5 V supply voltage range, consuming 2.2 mA of supply current at 3.3 V. The device features 65 kΩ internal pull-up resistors on both of the inputs (/MR1 and /MR2). The device offers factory programmed setup periods of 6 s, 8 s, 10 s, or 12 s and reset timeout periods of 0.5 s, 1 s or 2 s. It is available in a space saving, 6-bump, 0.4 mm pitch, 0.8 mm x 1.2 mm wafer level chip scale package.

Features
  • Operating supply voltage range: 1.5 V to 5.5 V
  • 2.2 µA supply current with /MR1, /MR2 not asserted
  • Factory programmed setup periods of 6 s, 8 s, 10 s, or 12 s
  • Factory programmed reset timeout periods of 0.5 s, 1 s, or 2 s
  • Integrated 65 kΩ /MR1 and /MR2 pull-up resistors
  • Supports single push button reset with /MR1 tied to /MR2
  • Open-Drain RESET and ANDOUT Outputs
  • RESET asserts after /MR1 and /MR2 are asserted low for a setup period
  • ANDOUT asserts after /MR1 and /MR2 are asserted low for a debounce time (1.5 ms)
  • 6-bump, 0.4 mm pitch, 0.8 mm x 1.2 mm Wafer Level Chip Scale Package (WLCSP)

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