I got a Smart Card reader out of a laptop. There's not much going on on the board, just the card receptacle on one side, with the contact springs, and two ICs on the back side:

A Cypress CY7C63001 A-SC USB micro controller, which is the bigger of the two, and finding datasheets for that is no problem.

Now the chip that interfaces the Smart Card chip, is a Texas Instruments 36A2DKK (2nd line: HC02), no datecode. It's a 14 pin SOIC-150 package.

I can't really show you a picture, I don't have any camera or macro lenses, that would make a decent photo of the markings.

I checked the usual places for datasheets, and manufacturers websites, but I can't find a single thing about it. The datecode on the micro controller is 0406, 4th week of 2006 would make sense.


1 Answer 1


It's a SN/CD54/74HC02 quad NOR. The "36A2DKK" is a lot code.


  • \$\begingroup\$ Can you provide a source for your info? It's not that I don't believe you. It's just that this is extremely error prone. I looked at the TI datasheet and other docs for the 74HC02 and couldn't find anything about how it's marked. \$\endgroup\$
    – user3624
    Aug 25, 2013 at 22:33
  • \$\begingroup\$ @DavidKessner: Source added. \$\endgroup\$ Aug 25, 2013 at 22:35
  • 1
    \$\begingroup\$ Thanks, the HC02 looked suspiciously like 74-series logic, but I was a bit confused why they'd use that in a Smart Card reader (I was expecting something like a more sophisticated interface, with Vpp booster or something). \$\endgroup\$
    – polemon
    Aug 25, 2013 at 23:11

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.