TANDY 200 RAM
About the TANDY 200 RAM PCB
TANDY 200 RAM is an open source PCB design by bkw777, published on GitHub under the Custom license license. It is a 2-layer board measuring 36.1 × 21.3 mm, with 4 components from 4 distinct parts.
Other key parts include the 62256 and 74LVC2G00. By type, the board carries 2 ICs, 1 connector and 1 capacitor.
It belongs with the rf & radio designs in this gallery.
From the project
Option RAM modules for TANDY 200 portable computer
Replacements for TANDY 26-3866 24K SRAM module for TANDY 200 portable computer.
There are a few different options here. You pick whichever you need. Single-bank, SOP-28 chip - Drop-in replacement for the original 24K module, with a large-ish chip that's relatively easy to solder by hand. Use this if you already have one original ceramic module, and want to keep using it, and just want one more 24K module to fill the machine, and you prefer to use, or happen to already have an SOIC-28/SOP-28 version of the SRAM chip. Single-bank, TSOP-28 chip - Same as above but uses a TSOP version of the…
Main components on the TANDY 200 RAM
TANDY 200 RAM bill of materials (BOM)
4 components, 4 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 62256 | SOP-28 | U1 |
| 1 | 74LVC2G00 | SSOP-8_2.95x2.8x0.65 | U2 |
| 1 | TANDY_26-3688 | KEL ICC05-028-360TP | J1 |
| 1 | 0.1uF | C_0805 | C1 |
TANDY 200 RAM design files
The KiCad project lives in the bkw777/TANDY_200_RAM repository on GitHub; these links point at the commit this page was built from.
- LayoutTANDY_200_RAM.kicad_pcb
- SchematicTANDY_200_RAM.kicad_sch
- BOMTANDY_200_RAM.BOM.csv
TANDY 200 RAM: common questions
How big is the TANDY 200 RAM PCB?
The TANDY 200 RAM measures 36.1 × 21.3 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the TANDY 200 RAM?
4 components, from 4 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the TANDY 200 RAM design files?
From the bkw777/TANDY_200_RAM repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the TANDY 200 RAM design in my own project?
It is published under Custom license, which limits how it may be reused; read the license before building on it.
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