MIC2782
Dual-Input Push Button Reset IC
with Immediate and Delayed Outputs
General Description
Features
The 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 (1.5ms), and deactivate if one or
both inputs are released for longer than a debounce time
(1.5ms). The RESET and ANDOUT outputs are active-low,
open-drain NMOS outputs.
1.5V to 5.5V Operating Supply Voltage Range
2.2A Supply Current with /MR1, /MR2 not asserted
Factory programmed setup periods of 6s, 8s, 10s or 12s
Factory programmed reset timeout periods of 0.5s, 1s or
2s
Integrated 65k /MR1 and /MR2 Pull-Up Resistors
Supports single push button reset with /MR1 tied to
/MR2
RESET asserts after /MR1 and /MR2 are asserted low
The MIC2782 operates over the 1.5V to 5.5V supply
voltage range, consuming 2.2A of supply current at 3.3V.
The device features 65kinternal pull-up resistors on both
of the inputs (/MR1 and /MR2). The device offers factory
programmed setup periods of 6s, 8s, 10s, or 12s and reset
timeout periods of 0.5s, 1s or 2s. It is available in a space
saving, 6-bump, 0.4mm pitch, 0.8mm x 1.2mm Wafer
Level Chip Scale Package.
for a setup period
ANDOUT asserts after /MR1 and /MR2 are asserted low
for a debounce time (1.5ms)
Open-Drain RESET and ANDOUT Outputs
6-bump, 0.4mm pitch, 0.8mm x 1.2mm Wafer Level
Chip Scale Package (WLCSP)
Applications
Data sheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
Smart Phones
Tablets
eBooks
Portable Games
Portable Navigation Device
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Typical Application
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Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
M9999-010912-A
January 2012