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Author Topic: Help identify this NXP MCU chip  (Read 1762 times)

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Offline sptm14aTopic starter

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Help identify this NXP MCU chip
« on: May 18, 2015, 08:13:12 pm »
Hello,

Anybody familiar with crazy NXP package markings, please help ID this chip (HVQFN32 package)
Relevant markings on the chip:

NXP
3303
SD4224B

It is used in a USB device and it is possibly one of LPC1100 or LPC1300 series MCUs

Thanks!
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Offline ddcc

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Re: Help identify this NXP MCU chip
« Reply #1 on: May 20, 2015, 02:59:12 am »
For reference, this is used in the Yubikey Neo: http://hexview.com/~scl/neo/
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Online amyk

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Re: Help identify this NXP MCU chip
« Reply #2 on: May 20, 2015, 04:31:03 am »
Given its application it is probably a custom version of one of their NFC ICs.
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Offline andersm

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Re: Help identify this NXP MCU chip
« Reply #3 on: May 20, 2015, 04:52:18 am »
The date code of 09 makes it too early for an LPC1100.
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