Coco2 64k sram
About the Coco2 64k sram PCB
Coco2 64k sram is an open source PCB design by qbancoffee, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 39 × 33.3 mm, with 9 components from 6 distinct parts.
Other key parts include the SN74ALS573CN, AS6C4008-55PIN and SN74ALS32N. By type, the board carries 3 ICs, 3 connectors and 3 resistors.
It belongs with the retro computing designs in this gallery.
From the project
Static RAM board for the Tandy Color Computer 2 model 26-3134
This KiCAD project includes the schematic and PCB design for a 64k static RAM board for the Tandy Color Computer 2 model 26-3134. It is designed to plug into the expansion port. There are two versions of the board in this repo, the main one which is the SMD version and there is a through hole version under "coco2313464kstaticramboardtht".
Main components on the Coco2 64k sram
Coco2 64k sram bill of materials (BOM)
9 components, 6 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | SN74ALS573CN SN74HCT573PWR digikey | TSSOP-20_4.4x6.5mm_P0.65mm | U1 |
| 1 | AS6C4008-55PIN IS61C5128AS-25TLI digikey | TSOP-II-32_21.0x10.2mm_P1.27mm | U2 |
| 1 | SN74ALS32N SN74HCT32DR digikey | SOIC-14_3.9x8.7mm_P1.27mm | U3 |
| 2 | CONN_01X12_MALE Conn_01x12_Male | PinHeader_1x12_P2.54mm_Vertical | CN3, CN4 |
| 1 | Conn_01x04_Female | PinHeader_1x04_P2.54mm_Vertical | J1 |
| 3 | 10K | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R2, R3 |
Coco2 64k sram design files
The KiCad project lives in the qbancoffee/coco2_64k_sram repository on GitHub; these links point at the commit this page was built from.
Coco2 64k sram: common questions
How big is the Coco2 64k sram PCB?
The Coco2 64k sram measures 39 × 33.3 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Coco2 64k sram?
9 components, from 6 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 Coco2 64k sram design files?
From the qbancoffee/coco2_64k_sram repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the Coco2 64k sram design in my own project?
Yes, under the terms of its GPL-3.0 license, which qbancoffee chose for the repository.
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