MEA8000
About the MEA8000 PCB
MEA8000 is an open source PCB design by Fred72z, published on GitHub under the GPL-2.0 license. It is a 2-layer board measuring 76.2 × 49.5 mm, with 25 components from 19 distinct parts.
Other key parts include the 74LS04, 74LS30 and MEA8000. By type, the board carries 9 capacitors, 8 resistors, 3 ICs, 2 connectors, 1 transistor and 1 crystal.
It belongs with the audio designs in this gallery.
From the project
Extensions pour ORIC1-ATMOS
Cette carte permet d'ajouter la synthèse vocale à l'ORIC. Elle se branche sur la platine d'extension de bus. La sortie audio se fait sur un jack car le son n'est pas mélangé avec le son de l'ORIC. La carte est placée aux adresses 3FE-3FF. Elle est compatible avec le logiciel Synthoric et les programmes du livre "Paroles et micro".
Main components on the MEA8000
MEA8000 bill of materials (BOM)
25 components, 19 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 74LS04 | DIP-14_W7.62mm_LongPads | U1 |
| 1 | 74LS30 | DIP-14_W7.62mm_LongPads | U2 |
| 1 | MEA8000 | DIP-24_W15.24mm_LongPads | U3 |
| 1 | P2N2907 | TO-92 | Q1 |
| 1 | 4MHz | Crystal_HC49-U_Vertical | Y1 |
| 1 | SLOT1 | IDC-Header_2x17_P2.54mm_Horizontal | J1 |
| 1 | AUDIO | Jack_3.5mm_PJ-307_Horizontal | J2 |
| 1 | 1N4148 | D_DO-35_SOD27_P7.62mm_Horizontal | D1 |
| 3 | 100nF | C_Rect_L7.0mm_W2.0mm_P5.00mm | C1, C2, C6 |
| 1 | 47pF | C_Rect_L7.0mm_W2.0mm_P5.00mm | C3 |
| 1 | 10nF | C_Rect_L7.0mm_W2.0mm_P5.00mm | C4 |
| 2 | 22nF | C_Rect_L7.0mm_W2.0mm_P5.00mm | C5, C9 |
| 2 | 47µF | CP_Radial_D5.0mm_P2.00mm | C7, C8 |
| 1 | 1M | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1 |
| 1 | 22k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R2 |
| 2 | 470 | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R3, R6 |
| 1 | 1.5k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R4 |
| 1 | 47 | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R5 |
| 2 | 10k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R7, R8 |
MEA8000 design files
The KiCad project lives in the Fred72z/ORIC repository on GitHub; these links point at the commit this page was built from.
MEA8000: common questions
How big is the MEA8000 PCB?
The MEA8000 measures 76.2 × 49.5 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the MEA8000?
25 components, from 19 distinct parts. The full bill of materials is listed on this page.
Where can I download the MEA8000 design files?
From the Fred72z/ORIC repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the MEA8000 design in my own project?
Yes, under the terms of its GPL-2.0 license, which Fred72z chose for the repository.
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