Jump to content
Sign in to follow this  
TI998owner

99/4a TMS4116-15 Memory , will -25 slower memory work ?

Recommended Posts

Hi Group,

,

Been a very long time since I replaced a set of memory chips

On the TI99/4a main board. My question is , found a person that

Has some replacement TMS4116-25 memory chips. What I was looking for

Was the Original TMS4116-15 , that are in the 99/4a .

,

Does anyone know if these slower Memorys will work as replacements

and any effects or problems they might cause ?

,

Also does anyone know of a good source for the faster TMS4116-15 Memory ?

Or possible does anyone have a bunch they would be willing to

Sell plus shipping.

,

His

Basic price per chip he has is .85 CENTS to $1 per chip plus

Shipping. If someone has them at or near this price , please PM

Me.

Thanks for any info in advance

TI998owner on atariage

Lee

Share this post


Link to post
Share on other sites

According to Appendix B of the VDP data manual, 4116-15 and 4116-20 RAMs should be OK, but 4116-25 RAMs will not work under worst case conditions.

Share this post


Link to post
Share on other sites

I'd use 4164's modified so they work as 16's.. that way you have - less heat - lower voltage - higher reliability

I have them in stock at arcadeshopper.com

  • Like 1

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
Sign in to follow this  

  • Recently Browsing   0 members

    No registered users viewing this page.

×
×
  • Create New...