MIC2782_12 Datasheet, PDF (1/16 Pages) Micrel Semiconductor – Dual-Input Push Button Reset IC with Immediate and Delayed Outputs

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.
The MIC2782 operates over the 1.5V to 5.5V supply
voltage range, consuming 2.2A of supply current at 3.3V.
The device features 65kinternal 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.
Data sheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
 1.5V to 5.5V Operating Supply Voltage Range
 2.2A 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
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
 Smart Phones
 Tablets
 eBooks
 Portable Games
 Portable Navigation Device
____________________________________________________________________________________________________________________
Typical Application
.
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel [phone] • fax + 1 [phone] • http://www.micrel.com
January 2012
M9999-010912-A