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Vintage 24-pin 64K*8 EPROM - MCM68766 350ns
Product Code: MCM68766
Product Description
This is for one 24-pin 8KiB EPROM, with free programming of a provided image if you desire.

These are desirable chips, because they are pin-compatible (no adapter needed) with the old Mostek MK36000 mask ROMs, and the 2364 type ROMs used in IBM 5150, Commodore 64, VIC-20, 1541, Sinclair ZX80/81.

Typical use would be replacing the BIOS chip in an IBM 5150, or adding a diagnostic ROM for such machine to your toolkit.

If you are purchasing for a 5150, you should get the third revision BIOS (10/27/82). Unlike the older ones, this supports 544K RAM, and Option ROMs (needed for EGA, VGA, Hard Drives, XT-IDE). The older BIOSes are there for novelty and collection purposes.

Larger quantity price breaks are at quantities of 5, 10, and 20.

If you'd like a different kind of EPROM, there is another product page with all the others I stock.
$25.00 inc. tax
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Product Details
weight: 10g
Product Condition: Refurbished
Bulk Buying Options
single - $25.00 -
2 up to 4 - $25.00 - per item
5 up to 9 - $23.00 - per item
10 up to 19 - $21.00 - per item
20 up to 49 - $18.00 - per item
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