Do you have a question on Embedded electronics and controls? Ask our Expert, Paul Clarke

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Paul Clarke

Paul has 20+ years of working as a digital electronics engineer and has strong software skills in assembly and C for embedded systems. Currently developing embedded electronics for thermal management control solutions for the air movement industry (HVAC & RAC).

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Former Member over 14 years ago

Hello, mister paul,

I have buy a programmer LEAPER-3DLEAPER-3D from farnell.
I will programming a E-prom type M27C512-12F1M27C512-12F1.
Which type select I with de programmer software.
sorry of my englisch.

Greet
Piet Sijrier
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pjclarke over 14 years ago in reply to Former Member

Hi Piet,

First off its nice to see someone still using 27C EPROMS!

I assume you mean which chip to select from the list of manufactures? There should be a device listed under NEC, suggest you start with 12volt devices and see how if it verify's ok. I think from having a look around you will find your chip is a 12.75volt device - if you can check with manufactures datasheet.

Thanks
Paul
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pjclarke over 14 years ago in reply to Former Member

Hi Piet,

First off its nice to see someone still using 27C EPROMS!

I assume you mean which chip to select from the list of manufactures? There should be a device listed under NEC, suggest you start with 12volt devices and see how if it verify's ok. I think from having a look around you will find your chip is a 12.75volt device - if you can check with manufactures datasheet.

Thanks
Paul
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Former Member over 14 years ago in reply to pjclarke

Hello Paul,

Thanks of your answer.
But I have a other problem.
I must select the type in de list of manufactures.
I can select 27C5120-Q100 of the 27C512-N100.
What is the difference?

Greet,
Piet Sijrier
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pjclarke over 14 years ago in reply to Former Member

From what I remember these are Intel part numbers and that the N and Q relates possible to voltage or maybe somthing like packing type. The 100 in the gate time (100ns). Either should work, just chek voltages. It was always a little suck-it-an-see.
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Former Member over 14 years ago in reply to pjclarke

Thank you

Good day
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