Coco9511pak
About the Coco9511pak PCB
Coco9511pak is an open source PCB design by barberd, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 98.3 × 107.1 mm, with 43 components from 29 distinct parts.
Other key parts include the 74LS32, LT1373CN8, 74LS04, AM9511 and 74LS374. By type, the board carries 17 capacitors, 13 ICs, 7 resistors, 2 jumpers, 1 crystal and 1 switch.
From the project
This board is a cartridge for the Tandy Radio Shack TRS-80 Color Computer (CoCo), an 8 bit computer produced between 1980 and 1991. It provides an Arithmetic Processor Unit (APU), the AMD 9511, to the CoCo.
This board is a cartridge for the Tandy Radio Shack TRS-80 Color Computer (CoCo), an 8 bit computer produced between 1980 and 1991. It provides an Arithmetic Processor Unit (APU), the AMD 9511, to the CoCo.
Note the specific component value for X1 on the board's markings and the bill of materials is for the Am9511-4DC; see below if one has a different chip.
A software patch for the Color Computer 3's BASIC can be found in the Basic Patch directory.
Main components on the Coco9511pak
Coco9511pak bill of materials (BOM)
43 components, 29 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 74LS32 | DIP-14_W7.62mm | U1 |
| 1 | LT1373CN8 | DIP-8_W7.62mm | U3 |
| 1 | 74LS04 | DIP-14_W7.62mm | U4 |
| 1 | AM9511 | DIP-24_W15.24mm | U5 |
| 1 | 74LS374 | DIP-20_W7.62mm | U6 |
| 1 | 74LS00 | DIP-14_W7.62mm | U7 |
| 1 | 74LS30 | DIP-14_W7.62mm | U8 |
| 1 | 74LS08 | DIP-14_W7.62mm | U9 |
| 1 | 74LS682 | DIP-20_W7.62mm | U10 |
| 1 | 74LS123 | DIP-16_W7.62mm | U11 |
| 1 | 74LS05 | DIP-14_W7.62mm | U12 |
| 1 | 74LS244 | DIP-20_W7.62mm | U13 |
| 1 | 74LS74 | DIP-14_W7.62mm | U14 |
| 1 | CXO_DIP14 4Mhz | DIP-14_W7.62mm | X1 |
| 1 | Jumper_2_Bridged | PinHeader_1x02_P2.54mm_Vertical | JP1 |
| 1 | Jumper_3_Open | PinHeader_1x03_P2.54mm_Vertical | JP2 |
| 1 | SW_DIP_x06 | SW_DIP_SPSTx06_Slide_9.78x17.42mm_W7.62mm_P2.54mm | SW1 |
| 1 | 1N5818 | D_DO-41_SOD81_P10.16mm_Horizontal | D1 |
| 1 | 22uH | L_Axial_L7.0mm_D3.3mm_P10.16mm_Horizontal_Fastron_MICC | L1 |
| 13 | .1uf | C_Axial_L3.8mm_D2.6mm_P7.50mm_Horizontal | C1, C2, C4, C5, C6, C7, C8, C9 +5 |
Show 9 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | .01uf | C_Axial_L3.8mm_D2.6mm_P7.50mm_Horizontal | C3 |
| 1 | 47pf | C_Axial_L3.8mm_D2.6mm_P7.50mm_Horizontal | C15 |
| 2 | 22uF | CP_Radial_D6.3mm_P2.50mm | C16, C17 |
| 1 | 10k | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1 |
| 1 | 3.3k | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R2 |
| 2 | 4.7k | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R3, R4 |
| 1 | 215k | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R5 |
| 1 | 24.9k | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R6 |
| 1 | 5k | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R7 |
Coco9511pak design files
The KiCad project lives in the barberd/coco9511pak repository on GitHub; these links point at the commit this page was built from.
- Layoutkicad/coco9511pak.kicad_pcb
- Schematickicad/coco9511pak.kicad_sch
Coco9511pak: common questions
How big is the Coco9511pak PCB?
The Coco9511pak measures 98.3 × 107.1 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Coco9511pak?
43 components, from 29 distinct parts. The full bill of materials is listed on this page.
Where can I download the Coco9511pak design files?
From the barberd/coco9511pak repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Coco9511pak design in my own project?
Yes, under the terms of its GPL-3.0 license, which barberd chose for the repository.