Brian K. White
UNITED STATES OF AMERICA • + Follow
Components
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28C256 SOIC28 |
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Resistor 47K 0805 |
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Carrier Molex78802_PCB_28 v004 |
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Description
Teeprom - TANDY 100/102/200 option rom
Select ENIG finish for gold plated edge contacts.
Carrier: http://shpws.me/SGGB
Requires an SOIC-28 test clip for programming.
This is ONLY for TRS-80 Model 100, 102, or 200, because of the non-standard pinout.
For other applications that use the same socket but with a standard pinout (TANDY 600, Epson PX-8, PX-4, etc), see the "Meeprom" version from the same git repo if you want an electrically re-writable module, or just use a plain 27C256 on the standard DIP-28 version of the carrier.
Code
https://github.com/bkw777/Teeprom
Schematic and Layout
http://tandy.wiki/Teeprom
CAD-Custom parts and enclosures
cad source for carrier - you want the PCB-28 version
https://github.com/bkw777/Molex78802_Module
Molex78802_PCB_28.stl
Mar 17,2021
2,060 views
Teeprom - TANDY 100/102/200 option rom
Re-writable 28C256 EEPROM for TRS-80 Model 100, 102, 200 Option Rom socket.
2060
3
0
Published: Mar 17,2021
Download Gerber file 5
PCBWay Donate 10% cost To Author
File Last Updated: 2024/04/20 (GMT+8)
File update record
2024-04-2005:38:08
CAD or technical drawing file is updated.
2022-12-2602:01:02
Gerber file is updated.
2022-12-2602:01:02
CAD or technical drawing file is updated.
*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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