Does it matter? how do you tell. IN other words one way, or 180 degrees flipped around?

 

Yes, it matters.

Pin one of the eprom/eeprom is the top-left pin if you're holding the chip vertically with the notched end up.

The notched end of the chip should match the notched end of the ZIF (or whatever your device holds the chip with).

Does this help? If not, let me know and I'll explain in more detail.

M

 

Well honestly I dont remember seeing a notched end. I put the chip in the programmer and it said "device not recognized". I turned the chip around and it went fine. I put it in the adapter and the ECM the same orientation and it ran fine. Now I just have to figure out what the heck all those table mean, haha.

 

the chip has a notched end, no doubt about it. Look closely. sucky ASCII picture below.

chip:

top view, vertical

--u--
|.....|
|.....|
|.....|
|.....|
------

zif looks kinda similar.

when placing the chip into the adapter/memcal, the notch should go towards the outside of the adapter/memcal.

 

Thanks for the info. I will look at it more carefully when I pull it out again.

 

Here ya go Larry. I have my adapter and chips layin around in my office room while I build the new motor.


Edit: its the 1/2 circle and arrow on the Left side of the chip.