MIC2782CLYCS MICREL [Micrel Semiconductor], MIC2782CLYCS Datasheet

no-image

MIC2782CLYCS

Manufacturer Part Number
MIC2782CLYCS
Description
Dual-Input Push Button Reset IC with Immediate and Delayed Outputs
Manufacturer
MICREL [Micrel Semiconductor]
Datasheet
General Description
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.
____________________________________________________________________________________________________________________
Typical Application
.
January 2012
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 •
Features
 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
 Integrated 65k /MR1 and /MR2 Pull-Up Resistors
 Supports single push button reset with /MR1 tied to
 RESET asserts after /MR1 and /MR2 are asserted low
 ANDOUT asserts after /MR1 and /MR2 are asserted low
 Open-Drain RESET and ANDOUT Outputs
 6-bump, 0.4mm pitch, 0.8mm x 1.2mm Wafer Level
Applications
 Smart Phones
 Tablets
 eBooks
 Portable Games
 Portable Navigation Device
2s
/MR2
for a setup period
for a debounce time (1.5ms)
Chip Scale Package (WLCSP)
with Immediate and Delayed Outputs
Dual-Input Push Button Reset IC
MIC2782
http://www.micrel.com
M9999-010912-A

Related parts for MIC2782CLYCS

MIC2782CLYCS Summary of contents

Page 1

General Description 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 ...

Page 2

... Micrel, Inc. Ordering Information Part Number Part Marking (1) MIC2782CLYCS - (1) MIC2782CMYCS - (1) MIC2782CRYCS - MIC2782DLYCS UKU (1) MIC2782DMYCS - (1) MIC2782DRYCS - MIC2782ELYCS UKW (1) MIC2782EMYCS - (1) MIC2782ERYCS - (1) MIC2782FLYCS - (1) MIC2782FMYCS - (1) MIC2782FRYCS - Notes: 1. Contact Factory for availability. Ordering Guide Setup Period: Setup Period: C – 6 seconds C – 6 seconds D – 8 seconds D – 8 seconds ...

Page 3

Micrel, Inc. Chip Scale Package (CS) Bump Configuration Y = Year Code WW = Week Code TOP VIEW 6-Bump, 0.4mm pitch, 0.8mm x 1.2mm WLCSP Package Bump Bump Designation Name NMOS Open-Drain output, Active-Low. Asserts low 1.5ms after /MR1 and ...

Page 4

Micrel, Inc. Absolute Maximum Ratings Supply Voltage (V )......................................GND to +6.0V DD Input Voltage ( )………GND - 0. /MR1 /MR2 NMOS Output Voltage (V V RESET, ANDOUT +6.0V Lead Temperature (soldering, 10sec.)....................... 260°C Storage Temperature (Ts)..........................-55°C ...

Page 5

Micrel, Inc. Typical Characteristics V Supply Current DD vs. Temperature 3 3.3V DD /MR1 = NOT ASSERTED 3.0 /MR2 = NOT ASSERTED 2.6 2.2 1.8 1.4 -40 - TEMPERATURE (°C) Supply Current for /MR1 and ...

Page 6

Micrel, Inc. Timing Diagram 1.5V VDD t > t /MR1 /MR2 RESET UNDEFINED STATE FOR VDD < 1.5V ANDOUT January 2012 SETUP RESET MIC2782 1.5V UNDEFINED STATE FOR ...

Page 7

Micrel, Inc. Functional Diagram January 2012 7 MIC2782 M9999-010912-A ...

Page 8

Micrel, Inc. Functional Description Design and Product Advantages The MIC2782 is a dual push-button input reset IC with extended setup delay times used for generating a hard reset for microcontrollers, disconnect switches. The dual manual reset inputs and ...

Page 9

Micrel, Inc. Figure 2. MIC2782 Used in Multiple Supply System Bypass Capacitor from VDD to GND A 0.1µF input bypass capacitor must be placed from VDD (Pin C1) to GND (Pin C2). January 2012 9 MIC2782 M9999-010912-A ...

Page 10

Micrel, Inc. Typical Applications V = 1.5V to 5.5V DD 0.1uF /MR PUSH-BUTTON SWITCH Figure 3. Single Button application for MIC2782 used for Microcontroller Reset Figure 4. Dual Button application for MIC2782 used for Microcontroller Reset January 2012 100k 100k ...

Page 11

Micrel, Inc. Evaluation Board Schematic V DD 1. SW1 PUSH-BUTTON SWITCH PUSH-BUTTON SWITCH Bill of Materials Item Part Number C1 GRM188R71C104KA01D R1, R2 CRCW0603100KJNEA U1 MIC2782ELYCS Notes: 1. Murata Tel: www.murata.com. 2. Vishay Tel: www.vishay.com. 3. ...

Page 12

Micrel, Inc. PCB Layout Recommendations January 2012 Top Silkscreen 12 MIC2782 M9999-010912-A ...

Page 13

Micrel, Inc. PCB Layout Recommendations (Continued) January 2012 Copper Layer 1 (Top Layer) Copper Layer 2 (Bottom Layer) 13 MIC2782 M9999-010912-A ...

Page 14

Micrel, Inc. PCB Layout Recommendations (Continued) January 2012 Bottom Silkscreen 14 MIC2782 M9999-010912-A ...

Page 15

Micrel, Inc. Package Information 6-Bump, 0.4mm Pitch 0.8mm x 1.2mm WLCSP (CS) Package Drawing January 2012 15 MIC2782 M9999-010912-A ...

Page 16

Micrel, Inc. MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA TEL +1 (408) 944-0800 FAX +1 (408) 474-1000 WEB Micrel makes no representations or warranties with respect to the accuracy or completeness of the information furnished in this ...

Related keywords