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FlexROM_100
Writable replacement main rom for TRS-80 Model 100
Optional send/return breakut for /CS line for use with REX_Classic Main ROM Management Feature
NOT for Model 102 or any other models or clones, only TRS-80 Model 100. There is an equivalent board for Model 102 and all other machines with a standard pinout. This one is just for Model 100 with it's non-standard pinout.
To program the chip, you may use either a SOIC-28 test clip or this programming adapter
You can find rom images here http://tandy.wiki/Model_T_Y2K
TIP: You can run the Model 102 rom on a model 100 machine. It fixes a couple of obscure bugs and the font is slightly different, but otherwise works the same and is compatible with the hardware.
FlexROM_100
*PCBWay community is a sharing platform. We are not responsible for any design issues and parameter issues (board thickness, surface finish, etc.) you choose.
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- Francisco Meza Nov 19,2021
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