2 layers245.1 × 160 mm
8-Bit CPU 32k
slu4coder/Minimal-64x4-Home-Computer
My DIY TTL home computer with VGA and PS/2 and 4x the processing power of a Commodore C64 or Apple II.
139 parts326
2 layers27.4 × 21.1 mm
Pmod sram
petersn/micro11Simple microprocessor with off-die SPI SRAM
- Size
- 27.4 × 21.1 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 9
- Nets
- 16
- Pads
- 52
- Tracks, vias
- 117, 21
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 27 Aug 2023
- Updated
- 19 Apr 2024
Overview
Pmod sram is an open-source printed circuit board by petersn, from the petersn/micro1 repository on GitHub. It is a 2-layer board of 27.4 × 21.1 mm with 9 parts on 16 nets, routed with 117 tracks and 21 vias.
It is built around the 23LC1024T-E/ST and 74HC00D. Its parts include 3 ICs, 2 resistors, 2 diodes, 1 capacitor and 1 connector.
Main components
2README
README.mdDependencies:
pip install cocotb
sudo apt-get install iverilogParts
9| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | LED | LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D1, D2 |
| 2 | R | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1, R2 |
| 1 | 1 uF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1 |
| 1 | 23LC1024 (SOIC8) | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U1 |
| 1 | 25LC1024 (DIP8 socket) | Package_DIP:DIP-8_W7.62mm | U2 |
| 1 | 74HC00 | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U3 |
| 1 | PMOD connector | Connector_PinHeader_2.54mm:PinHeader_2x06_P2.54mm_Vertical | J1 |
Questions
How big is the Pmod sram PCB?
It measures 27.4 × 21.1 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Pmod sram use?
9 parts, built around the 23LC1024T-E/ST and 74HC00D. 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 Pmod sram KiCad files?
From the petersn/micro1 repository on GitHub, at the commit this page was made from: the board is pmod_sram/pmod_sram.kicad_pcb and its schematic pmod_sram/pmod_sram.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Pmod sram design in my own project?
Its repository states no licence, so its author keeps all rights: ask petersn before reusing the design.
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