{"id":140193,"date":"2026-09-16T17:12:06","date_gmt":"2026-09-17T00:12:06","guid":{"rendered":"https:\/\/www.stevenrhine.com\/?p=140193"},"modified":"2026-09-19T23:08:04","modified_gmt":"2026-09-20T06:08:04","slug":"data-io-unisite-expansion-ram-board-701-2114-001","status":"publish","type":"post","link":"https:\/\/www.stevenrhine.com\/?p=140193","title":{"rendered":"Data IO Unisite Expansion Ram Board 701-2114-001"},"content":{"rendered":"

Data IO Unisite Expansion Ram Board 701-2114-001<\/p>\n

This is a Data I\/O Corp. “Expansion RAM BD.” (P\/N 701-2114-001, copyright 1986). Date codes on the chips run from late 1985 to mid-1987 (8702 to 8726), so it was built around mid-1987. It’s a DRAM expansion card for one of the Unisite Universal Programmer with a 6800 Dip CPU Board Number 701-2012-008 there was another board with a 2 30pin Sim Slots on the board this will not work.<\/p>\n

Teardown of Data I\/O Unisite<\/a><\/p>\n

\"Data<\/a><\/p>\n

\"Data<\/a>
\nData IO Unisite Expansion Ram Board Cable 709-0222-002<\/p>\n

\"Data<\/a>
\nCable Eye Cable Diagram (Soon)<\/p>\n

I have tried the pal\/gal chips that I could find for U91 and U92 to be able to add sims to this board I have not been successful. When plugged it only reports 512kb user memory 384 KB on this board and 128kb on the Data I\/O Unisite Main Board. I have tried 256K and 1 Meg 30 pin simms in pairs in different configurations to a full boat with no luck. If anyone has the pal\/gal jed file for a set amount of ram 1mb or more let me know.<\/p>\n

From the 1987 version of the Service Unisite Manual<\/a> I may not have the right memory but thats 8 1meg 9 Chip Parity Simms.<\/p>\n

\"\"<\/a>
\nBlock Diagram
\n\"\"<\/a>
\nSchematic
\n\"\"<\/a>
\nI may need to Update the U10 and U26 on the memory board.<\/p>\n

\r\n
\r\n \r\n <\/i>\r\n <\/a>\r\n 0 <\/span>\r\n<\/div>
\r\n \r\n <\/i>\r\n <\/a>\r\n 0<\/span>\r\n<\/div><\/div>","protected":false},"excerpt":{"rendered":"

Data IO Unisite Expansion Ram Board 701-2114-001 This is a Data I\/O Corp. “Expansion RAM BD.” (P\/N 701-2114-001, copyright 1986). Date codes on the chips run from late 1985 to mid-1987 (8702 to 8726), so it was built around mid-1987. It’s a DRAM expansion card for one of the Unisite Universal Programmer with a 6800 […]<\/p>\n","protected":false},"author":1,"featured_media":140195,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"no","_lmt_disable":"no","footnotes":""},"categories":[1],"tags":[],"class_list":["post-140193","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-stevens-posts"],"yoast_head":"\nData IO Unisite Expansion Ram Board 701-2114-001 - Steven Rhine - Rhine Labs Blog \/ News<\/title>\n<meta name=\"description\" content=\"Data IO Unisite Expansion Ram Board 701-2114-001 and Cable 709-0222-002\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.stevenrhine.com\/?p=140193\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Data IO Unisite Expansion Ram Board 701-2114-001\" \/>\n<meta property=\"og:description\" content=\"Data IO Unisite Expansion Ram Board 701-2114-001 and Cable 709-0222-002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.stevenrhine.com\/?p=140193\" \/>\n<meta property=\"og:site_name\" content=\"Steven Rhine - 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