4 layers45.5 × 69.8 mm
Aero
LtBrain/aero
A control system board/robot for Science Olympiads Robot Tour. It will have 2 brushed motor drivers, at least 2 encoder inputs, and support for ultrasonic and TOF sensors.
53 partsMIT
2 layers100 × 100 mm
MemoryFlash RAM
jlvillalobosj/PCB_Flash_Ram_Memory- Size
- 100 × 100 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 65
- Nets
- 47
- Pads
- 138
- Tracks, vias
- 37, 0
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 21 Sep 2026
- Updated
- 22 Sep 2026
Overview
MemoryFlash RAM is an open-source printed circuit board by jlvillalobosj, from the jlvillalobosj/PCB_Flash_Ram_Memory repository on GitHub. It is a 2-layer board of 100 × 100 mm with 65 parts on 47 nets, routed with 37 tracks and 0 vias.
It is built around the W25Q32JVSSIQ, BSS138DW-7-F-ES and BSS138. Its parts include 12 resistors, 7 connectors, 4 diodes, 3 ICs and 2 capacitors.
Main components
3
W25Q32JVSSIQ
SOIC-8-208mil-40℃~+85℃ 100,000 cycles 133MHz 1uA 2.7V~3.6V 20 Years 32Mbit 3ms SPI SOIC-8-208mil NOR FLASH ROHSWinbondNOR FLASH
BSS138DW-7-F-ES
SOT-363-55℃~+150℃ 1.5Ω@10V、1.6Ω@4.5V 1V 2 N-Channel 2.2pF 25pF 410mA 417mW 60V 650pC@4.5V 9.7pF N-Channel SOT-363 MOSFETs ROHSElecSuperMOSFETs
BSS138
SOT-23-55℃~+150℃ 1 N-channel 1.1Ω@10V、1.2Ω@4.5V 1.2V 1.7nC@10V 17.5pF 340mA 350mW 50V 6.5pF N-Channel SOT-23 MOSFETs ROHShongjiachengMOSFETs
README
README.mdPCB_Flash_Ram_Memory
Parts
65| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 270 | Resistor_SMD:R_0805_2012Metric | R1, R2, R3, R4 |
| 4 | MountingHole_Pad | MountingHole:MountingHole_3.2mm_M3_DIN965_Pad | H1, H2, H3, H4 |
| 3 | 10k | Resistor_SMD:R_0805_2012Metric | R7, R9, R11 |
| 3 | 1k | Resistor_SMD:R_0805_2012Metric | R6, R8, R10 |
| 3 | G*** | kibuzzard-6AAF36C8 | kibuzzard-6AAF36C8, kibuzzard-6AAF36C8, kibuzzard-6AAF36C8 |
| 3 | G*** | kibuzzard-6AAF36AB | kibuzzard-6AAF36AB, kibuzzard-6AAF36AB, kibuzzard-6AAF36AB |
| 3 | G*** | kibuzzard-6AAF36D3 | kibuzzard-6AAF36D3, kibuzzard-6AAF36D3, kibuzzard-6AAF36D3 |
| 3 | G*** | kibuzzard-6AAF36E0 | kibuzzard-6AAF36E0, kibuzzard-6AAF36E0, kibuzzard-6AAF36E0 |
| 3 | G*** | kibuzzard-6AAF36BF | kibuzzard-6AAF36BF, kibuzzard-6AAF36BF, kibuzzard-6AAF36BF |
| 3 | G*** | kibuzzard-6AAF36DA | kibuzzard-6AAF36DA, kibuzzard-6AAF36DA, kibuzzard-6AAF36DA |
| 2 | 0.1u | Capacitor_SMD:C_0805_2012Metric | C1, C2 |
| 2 | 50 | Resistor_SMD:R_0805_2012Metric | R5, R12 |
| 1 | BSS138DW-7-F | Package_TO_SOT_SMD:SOT-363_SC-70-6 | Q1 |
| 1 | BSS138LT1G | Package_TO_SOT_SMD:SOT-23 | Q2 |
| 1 | Bidir | Connector_PinHeader_2.54mm:PinHeader_2x06_P2.54mm_Horizontal | J2 |
| 1 | FLASH | LED_SMD:LED_2010_5025Metric | D3 |
| 1 | G*** | kibuzzard-6AAEB7D3 | kibuzzard-6AAEB7D3 |
| 1 | G*** | kibuzzard-6AAF2EE9 | kibuzzard-6AAF2EE9 |
| 1 | G*** | kibuzzard-6AAF3233 | kibuzzard-6AAF3233 |
| 1 | G*** | kibuzzard-6AAF2F16 | kibuzzard-6AAF2F16 |
| 1 | G*** | kibuzzard-6AAEB82B | kibuzzard-6AAEB82B |
| 1 | G*** | kibuzzard-6AAF2EF1 | kibuzzard-6AAF2EF1 |
| 1 | G*** | kibuzzard-6AAEAE00 | kibuzzard-6AAEAE00 |
| 1 | G*** | kibuzzard-6AAF3222 | kibuzzard-6AAF3222 |
| 1 | G*** | kibuzzard-6AAF3046 | kibuzzard-6AAF3046 |
| 1 | G*** | kibuzzard-6AAF347E | kibuzzard-6AAF347E |
| 1 | G*** | kibuzzard-6AAF2EDD | kibuzzard-6AAF2EDD |
| 1 | G*** | kibuzzard-6AAF3053 | kibuzzard-6AAF3053 |
| 1 | G*** | kibuzzard-6AAEB831 | kibuzzard-6AAEB831 |
| 1 | INPUT | Connector_PinHeader_2.54mm:PinHeader_2x06_P2.54mm_Horizontal | J1 |
| 1 | OUTPUT | Connector_PinHeader_2.54mm:PinHeader_2x06_P2.54mm_Horizontal | J3 |
| 1 | PROG | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J4 |
| 1 | PROG | LED_SMD:LED_2010_5025Metric | D2 |
| 1 | RAM | LED_SMD:LED_2010_5025Metric | D4 |
| 1 | SEL_DMUX | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J5 |
| 1 | SPI-FLASH | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J6 |
| 1 | SPI-RAM | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J7 |
| 1 | VCC | LED_SMD:LED_2010_5025Metric | D1 |
| 1 | W25Q32JVSS | Package_SO:SOIC-8_5.3x5.3mm_P1.27mm | U1 |
| 1 | ~ | Package_SO:SO-8_3.9x4.9mm_P1.27mm | U3 |
| 1 | ~ | Package_SO:SSOP-16_3.9x4.9mm_P0.635mm | U2 |
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Questions
How big is the MemoryFlash RAM PCB?
It measures 100 × 100 mm and has 2 copper layers, 1.6 mm thick.
What parts does the MemoryFlash RAM use?
65 parts, built around the W25Q32JVSSIQ, BSS138DW-7-F-ES and BSS138. 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 MemoryFlash RAM KiCad files?
From the jlvillalobosj/PCB_Flash_Ram_Memory repository on GitHub, at the commit this page was made from: the board is MemoryFlash_RAM/MAIN/MAIN.kicad_pcb and its schematic MemoryFlash_RAM/MAIN/MAIN.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the MemoryFlash RAM design in my own project?
Its repository states no licence, so its author keeps all rights: ask jlvillalobosj before reusing the design.