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component marking not clear

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yassin.kraouch

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I have a component, but i was not able to recognize it,
the marking on the package is HC02 and just below HC02 it is written 1k3y012,
can anyone help me to knw this component ?

 

For me it is just a 74 HC 02.

It is also a 7 + 7 pin as the one mentioned by me.

Here is the link:
**broken link removed**

Looks like it is the one of Fig. and/or the one at page 10.

Mandi
 

really sharp picture... and yes, it is 74HC02 in TSSOP package.
 

i found this component in a PIR sensor, you think how this IC is used in combination with PIR sensor ?
 

Its quad 2-input NOR gate, so maybe for logical operation (if there are two PIR sensors) or for negation of a signal...or some signal processing (sharp edges and so on).
 

near this component i found a 555 timer, i dont know why
 

me too. You could search some schematics for PIR sensors on the internet. It depends on the application
 

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