MC14490DWR2G Standard Logic by ON Semiconductor

Hex Bounce Eliminator

Status: Active
Series: MC14490
RoHS: Compliant
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The MC14490 is constructed with complementary MOS enhancement mode devices, and is used for the elimination of extraneous level changes that result when interfacing with mechanical contacts. The digital contact bounce eliminator circuit takes an input signal from a bouncing contact and generates a clean digital signal four clock periods after the input has stabilized. The bounce eliminator circuit will remove bounce on both the "make" and the "break" of a contact closure. The clock for operation of the MC14490 is derived from an internal R-C oscillator which requires only an external capacitor to adjust for the desired operating frequency (bounce delay). The clock may also be driven from an external clock source or the oscillator of another MC14490 (see Figure 5). NOTE: Immediately after power-up, the outputs of the MC14490 are in indeterminate states.

Where to Buy

Prices starting from US$0.47

Distributor Stock
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Farnell
from US$4.33
317
in stock
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Logo for Newark Electronics
Newark Electronics
from US$0.56
317
in stock
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Logo for element14
element14
from US$5.66
317
in stock
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Logo for Future Electronics
Future Electronics
from US$0.48
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Avnet America
from US$0.47
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EBV Elektronik
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Avnet Silica
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Features

Diode Protection on All Inputs
Six Debouncers Per Package
Internal Pullups on All Data Inputs
Can Be Used as a Digital Integrator, System Synchronizer, or Delay Line
Internal Oscillator (R-C), or External Clock Source
TTL Compatible Data Inputs/Outputs
Single Line Input, Debounces Both "Make" and "Break" Contacts
Does Not Require "Form C" (Single Pole Double Throw) Input Signal
Cascadable for Longer Time Delays
Schmitt Trigger on Clock Input (Pin 7)
Supply Voltage Range = 3.0 V to 18 V
Chip Complexity: 546 FETs or 136.5 Equivalent Gates
Pb-Free Packages are Available

Specifications

Description MC14490
Compliance Pb-free Halide free
Type Bounce Eliminator
VCC Min (V) 3
VCC Max (V) 18
tpd Max (ns) 320
PD Max (W) 0.5
IO Max (mA) 9
Package Type SOIC-16W

Alternative Descriptions

Bounce Eliminator, -55 To 125Deg C | Newark Electronics
CONTACT BOUNCE ELIMINATOR, HEX, SOIC-16 | element14
MC14490 Series 3 to 18 Vdc SMT CMOS Hex Bounce Eliminator - SOIC-16 | Future Electronics
Eliminator 16-Pin SOIC W T/R | Avnet America


Frequently Asked Questions

Where can I find additional details, specifications and documents for a MC14490DWR2G?

Additional datasheets, footprints and schematics for MC14490DWR2G are listed on our Part Details page. You can also find images and similar parts to MC14490DWR2G on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for MC14490DWR2G on our Product Comparison page. Access via the 'View Pricing & Stock' button to view MC14490DWR2G price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does MC14490DWR2G fall under?

The MC14490DWR2G is listed under Timing, Logic & Memory > Standard Logic > Arithmetic Logic Functions.

Can I view similar or alternative parts?

You can view similar parts to MC14490DWR2G when available in the Arithmetic Logic Functions range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the MC14490DWR2G you can contact the distributor directly for product support, shipping queries etc.

Is the MC14490DWR2G RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by ON Semiconductor.

Which authorised distributors for MC14490DWR2G have stock available?

Authorised distributors including Newark Electronics, element14, Farnell, Future Electronics and Avnet America have stock available or on a lead time for MC14490DWR2G.

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