EPROM Programmer: Programming TMS2532 Chips w/ 25v

[imsmooth]

I want to program some TMS2532 chips that need 25v in order to program. The GQ-4x4 does not seem to be doing it. Any suggestions for a USB-type programmer for this task? I've seen the EMP-20, but it uses a parallel port that I am not thrilled about.

 

[.Scott]

Before this device is programmed, it must be exposed to a high-intensity uv light (2537 Angstroms).
Are you doing that?
If not, from personal experience I have discovered that an arc lamp improvised from a 40VDC supply and a #2 pencil will make quick work of it.
Most device programmers (such as your GQ-4x4) are able to scan the target device and report whether it is fully erased.

 

[DaveE]

This one? Sorry, I don't care enough to read the whole datasheet. But it programs lots of things and can make 25V.

https://www.jameco.com/z/TL866-3G-T...m_kRt7v2C1PybmY-6eCHsgU-4tYsPd8RoCvLYQAvD_BwE

 

[imsmooth]

Yes
I’ve successfully programmed chips many times and I have a UV eraser.

My success with the 2532 is intermittent and when I put in oscilloscope on the pins I can see my programmer is not hitting the 25 V needed.

 

[.Scott]

I haven't used that kind of programmer for a while. Even if I recalled model numbers, they likely wouldn't be available anymore.
Do you do "Blank" checks before programming?

 

[imsmooth]

Yes. Again, I am just asking if anyone knows of a good programmer that hits 25v reliably because the one I have doesn't.