

MECB IDE
- Size
- 99.8 × 99.8 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 20
- Nets
- 118
- Pads
- 253
- Tracks, vias
- 785, 75
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 2 Jul 2024
- Updated
- 25 Oct 2026
Overview
MECB IDE is an open-source printed circuit board by epaell, from the epaell/MECB repository on GitHub. It is a 2-layer board of 99.8 × 99.8 mm with 20 parts on 118 nets, routed with 785 tracks and 75 vias.
It is built around the ATF22V10C-15PU and 74AHCT04D. Its parts include 4 resistors, 4 connectors, 3 capacitors, 3 ICs and 1 diode. It belongs with the FPGA and CPLD boards of this library.
Main components
2README
SDCardShield/README.mdSDCardShield
A version of the SD Card shield that was originally developed by Corsham Technologies for the SWTPC. It has been modified to work with the MECB I/O board (PIA port) and makes use of Adafruit modules to implement the realtime clock:
https://core-electronics.com.au/adafruit-ds3231-precision-rtc-breakout.html
and microSD interface:
https://core-electronics.com.au/microsd-card-breakout-board.html
Parts
20| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 3 | 0.1uF | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm | C1, C2, C3 |
| 3 | 10K | Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal | R2, R3, R4 |
| 1 | 330 | Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal | R1 |
| 1 | 74AHCT04 | Package_DIP:DIP-14_W7.62mm_Socket_LongPads | U3 |
| 1 | 82C55A | Package_DIP:DIP-40_W15.24mm_Socket_LongPads | U2 |
| 1 | ATF22V10C-15PU | Package_DIP:DIP-24_W7.62mm_Socket_LongPads | U1 |
| 1 | Barrel_Jack_Switch | Connector_BarrelJack:BarrelJack_Horizontal | J4 |
| 1 | Conn_02x20_Odd_Even | Connector_IDC:IDC-Header_2x20_P2.54mm_Vertical | J2 |
| 1 | Conn_02x22_Odd_Even | Connector_PinHeader_2.00mm:PinHeader_2x22_P2.00mm_Vertical | J3 |
| 1 | Jumper | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | JP1 |
| 1 | LED | LED_THT:LED_D3.0mm_Horizontal_O1.27mm_Z2.0mm | D1 |
| 1 | MECB_64AC | MyCustomFootprintLibrary:DIN41612_C_2x32_C64AC_Male_Horizontal_THT | J1 |
Questions
How big is the MECB IDE PCB?
It measures 99.8 × 99.8 mm and has 2 copper layers, 1.6 mm thick.
What parts does the MECB IDE use?
20 parts, built around the ATF22V10C-15PU and 74AHCT04D. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the MECB IDE KiCad files?
From the epaell/MECB repository on GitHub, at the commit this page was made from: the board is MECB_IDE/v0.1/MECB_IDE.kicad_pcb and its schematic 68008Tester/68008test.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the MECB IDE design in my own project?
Its repository states no licence, so its author keeps all rights: ask epaell before reusing the design.
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