2 layers19 × 76 mm
Sub
google/mozc-devices
Circuit diagrams and firmware source code for Gboard DIY keyboards
15 parts3kApache-2.0
2 layers94 × 53.3 mm
ROM EMUL
PPoliakoff/ROM_EMULAn emulator for the 27256 EPROM
- Size
- 94 × 53.3 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 15
- Nets
- 57
- Pads
- 226
- Tracks, vias
- 749, 43
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 26 May 2018
- Updated
- 26 May 2018
Overview
ROM EMUL is an open-source printed circuit board by PPoliakoff, from the PPoliakoff/ROM_EMUL repository on GitHub, published under the MIT licence. It is a 2-layer board of 94 × 53.3 mm with 15 parts on 57 nets, routed with 749 tracks and 43 vias.
Its parts include 5 ICs, 4 capacitors, 2 resistors and 2 diodes. It belongs with the AVR (ATmega, ATtiny) boards of this library.
README
README.mdROM_EMUL
An emulator for the 27256 EPROM
Parts
15| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 100nF | Capacitors_THT:C_Axial_L3.8mm_D2.6mm_P7.50mm_Horizontal | C1, C2, C3, C4 |
| 3 | 74LS541 | Housings_DIP:DIP-20_W7.62mm_Socket | U2, U3, U4 |
| 2 | 680R | Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R2 |
| 2 | LED | LEDs:LED_D3.0mm | D1, D2 |
| 1 | 27C256Socket | pinHeaderRenumbered:Pin_Header_DIP28_plus2 | U5 |
| 1 | Arduino_Mega2560_Shield | pinHeaderRenumbered:Arduino_Mega_cleaned | XA1 |
| 1 | HM62256BLFP-7ULT | Housings_DIP:DIP-28_W15.24mm_Socket_LongPads | U1 |
| 1 | VCCArduino | Connectors:PINHEAD1-2 | JP1 |
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Questions
How big is the ROM EMUL PCB?
It measures 94 × 53.3 mm and has 2 copper layers, 1.6 mm thick.
What parts does the ROM EMUL use?
15 parts. 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 ROM EMUL KiCad files?
From the PPoliakoff/ROM_EMUL repository on GitHub, at the commit this page was made from: the board is KICAD/ROM_emul.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the ROM EMUL design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).