Memory Board
HelloItzAlex·KiCAD-Designs·Memory Board/Memory Board.kicad_pcb
About the Memory Board
Memory Board is an open source STM32 PCB design by HelloItzAlex, published on GitHub. It is a 4-layer board measuring 29.9 × 38.1 mm, with 34 components from 26 distinct parts.
Its main chip is the STM32G473CBTx, from the STM32 family. Other key parts include the MCP2557FDT-H/MNY and LD1117S33TR_SOT223. By type, the board carries 14 capacitors, 8 resistors, 4 connectors, 3 ICs, 2 switches and 1 crystal.
Main components on the Memory Board
Memory Board bill of materials (BOM)
34 components, 26 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | MCP2557FDT-H/MNY MCP2557FDT-H_MNY | SON50P300X200X80-9N-D | IC2 |
| 1 | STM32G473CBTx | LQFP-48_7x7mm_P0.5mm | U1 |
| 1 | LD1117S33TR_SOT223 | SOT-223-3_TabPin2 | U2 |
| 1 | ECS-2520MV-xxx-xx | Oscillator_SMD_ECS_2520MV-xxx-xx-4Pin_2.5x2.0mm | X1 |
| 1 | NI9205CONN USB4056-03-A_REVA2 | USB_C_Receptacle_GCT_USB4115-03-C | J1 |
| 2 | Conn_01x04_Socket | PinHeader_1x04_P2.54mm_Vertical | J2, J4 |
| 1 | 24VCONN Conn_01x04_Socket | PinHeader_1x04_P2.54mm_Vertical | J3 |
| 1 | SW_SPST | SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | SW1 |
| 1 | SW_SPDT | SolderJumper-3_P1.3mm_Open_RoundedPad1.0x1.5mm_NumberLabels | SW2 |
| 1 | IN-P32TATRGB | INP32TATRGB | LED1 |
| 1 | LED | LED_0603_1608Metric | D1 |
| 5 | 0.1uF | C_0402_1005Metric | C1, C2, C3, C7, C15 |
| 1 | 4.7uF | C_0603_1608Metric | C4 |
| 1 | 10000pF | C_0402_1005Metric | C5 |
| 2 | 1uF | C_0603_1608Metric | C6, C8 |
| 1 | .1uF | C_0402_1005Metric | C9 |
| 1 | 10uF | C_0603_1608Metric | C10 |
| 2 | 20pF | C_0402_1005Metric | C13, C14 |
| 1 | 4700pF | C_0402_1005Metric | C16 |
| 1 | 1.1K 10k | R_0603_1608Metric | R1 |
Show 6 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 1.1K 43 | R_0603_1608Metric | R2 |
| 1 | 1.1K 55 | R_0402_1005Metric | R3 |
| 1 | 1.1K 5 | R_0402_1005Metric | R4 |
| 2 | 100K 60 | R_0805_2012Metric | R5, R6 |
| 1 | 100K 5 | R_0402_1005Metric | R7 |
| 1 | 100K 10k | R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R8 |
Memory Board design files
The KiCad project lives in the HelloItzAlex/KiCAD-Designs repository on GitHub; these links point at the commit this page was built from.
Memory Board: common questions
What microcontroller does the Memory Board use?
The Memory Board is built around the STM32G473CBTx, from the STM32 family.
How big is the Memory Board?
The Memory Board measures 29.9 × 38.1 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Memory Board?
34 components, from 26 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Memory Board design files?
From the HelloItzAlex/KiCAD-Designs repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Memory Board design in my own project?
The repository has no license, so all rights stay with HelloItzAlex. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Memory Board without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.
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