{"id":909,"date":"2019-07-14T20:32:01","date_gmt":"2019-07-14T19:32:01","guid":{"rendered":"https:\/\/elephantandchicken.co.uk\/stuffandnonsense\/?p=909"},"modified":"2019-07-14T20:34:46","modified_gmt":"2019-07-14T19:34:46","slug":"programming-a-tmm27128d-with-the-lt866-eprom-programmer","status":"publish","type":"post","link":"https:\/\/elephantandchicken.co.uk\/stuffandnonsense\/?p=909","title":{"rendered":"Programming a TMM27128D with the TL866 EPROM Programmer"},"content":{"rendered":"\n<ul class=\"wp-block-gallery columns-1 is-cropped\"><li class=\"blocks-gallery-item\"><figure><img loading=\"lazy\" width=\"904\" height=\"658\" src=\"https:\/\/elephantandchicken.co.uk\/stuffandnonsense\/wp-content\/uploads\/2019\/07\/EPROM_Chip_27128.jpg\" alt=\"\" data-id=\"910\" data-link=\"https:\/\/elephantandchicken.co.uk\/stuffandnonsense\/?attachment_id=910\" class=\"wp-image-910\" srcset=\"https:\/\/elephantandchicken.co.uk\/stuffandnonsense\/wp-content\/uploads\/2019\/07\/EPROM_Chip_27128.jpg 904w, https:\/\/elephantandchicken.co.uk\/stuffandnonsense\/wp-content\/uploads\/2019\/07\/EPROM_Chip_27128-300x218.jpg 300w\" sizes=\"(max-width: 904px) 100vw, 904px\" \/><\/figure><\/li><\/ul>\n\n\n\n<p>Although the TMM27128D (Toshiba) UV Erasable EPROM is not listed within the menus of the Xgpro software for the LT866ii Plus EPROM Programmer, I found that I was able to program a blank chip by selecting (AMD) AM27128A, unchecking the &#8220;Check ID&#8221; box, set VDD write to 5V and adjusting the VPP voltage to the maximum 18V. Note 18V is a little lower than the specified 21V, so while it worked and passed verification, it might not be the best solution. Good if you&#8217;re stuck in a fix though.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Although the TMM27128D (Toshiba) UV Erasable EPROM is not listed within the menus of the Xgpro software for the LT866ii Plus EPROM Programmer, I found that I was able to program a blank chip by selecting (AMD) AM27128A, unchecking the &#8220;Check ID&#8221; box, set VDD write to 5V and adjusting the VPP voltage to the [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":284,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spay_email":"","jetpack_publicize_message":"","jetpack_is_tweetstorm":false},"categories":[6,13,3,12,152],"tags":[237,236,233,221,222,223,234,235,238],"jetpack_featured_media_url":"https:\/\/elephantandchicken.co.uk\/stuffandnonsense\/wp-content\/uploads\/2018\/01\/IMG_20180114_140704.jpg","jetpack_publicize_connections":[],"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p7g9vY-eF","_links":{"self":[{"href":"https:\/\/elephantandchicken.co.uk\/stuffandnonsense\/index.php?rest_route=\/wp\/v2\/posts\/909"}],"collection":[{"href":"https:\/\/elephantandchicken.co.uk\/stuffandnonsense\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/elephantandchicken.co.uk\/stuffandnonsense\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/elephantandchicken.co.uk\/stuffandnonsense\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/elephantandchicken.co.uk\/stuffandnonsense\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=909"}],"version-history":[{"count":3,"href":"https:\/\/elephantandchicken.co.uk\/stuffandnonsense\/index.php?rest_route=\/wp\/v2\/posts\/909\/revisions"}],"predecessor-version":[{"id":913,"href":"https:\/\/elephantandchicken.co.uk\/stuffandnonsense\/index.php?rest_route=\/wp\/v2\/posts\/909\/revisions\/913"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/elephantandchicken.co.uk\/stuffandnonsense\/index.php?rest_route=\/wp\/v2\/media\/284"}],"wp:attachment":[{"href":"https:\/\/elephantandchicken.co.uk\/stuffandnonsense\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=909"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/elephantandchicken.co.uk\/stuffandnonsense\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=909"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/elephantandchicken.co.uk\/stuffandnonsense\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=909"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}