4 layers95 × 55 mm
4 layers26 × 30 mm
Expansion Card
Churrosoft/BMP_Expansion_Card1- Size
- 26 × 30 mm
- Copper layers
- 4
- Thickness
- 4.69 mm
- Parts
- 46
- Nets
- 87
- Pads
- 221
- Tracks, vias
- 100, 18
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 5 (file 20210824)
- Created
- 10 Sep 2021
- Updated
- 17 Sep 2021
Overview
Expansion Card is an open-source printed circuit board by Churrosoft, from the Churrosoft/BMP_Expansion_Card repository on GitHub, published under the MIT licence. It is a 4-layer board of 26 × 30 mm with 46 parts on 87 nets, routed with 100 tracks and 18 vias.
It is built around the 74LVC2T45DC, AP2112K-3.3 and USBLC6-2SC6, with the BSS123 among its other parts. Its parts include 12 resistors, 7 capacitors, 7 ICs, 4 diodes and 4 transistors. It belongs with the STM32 boards of this library.
Main components
4
74LVC2T45DC
VSSOP-8-0.5mm-40℃~+125℃ 1 1.2V~5.5V 1.2V~5.5V 2 420Mbps Bidirectional Power-Off Protection Tri-State VSSOP-8-0.5mm Translators, Level Shifters ROHSNexperiaTranslators, Level Shifters
AP2112K-3.3
SOT253.3V 600mA CMOS Low Dropout Linear Regulator with EnableDiodes IncorporatedUncategorised
USBLC6-2SC6
SOT-23-60.35pF、0.8pF 100nA 150W@8/20us 15V 2 5V 6A@8/20us 6V ESD SOT-23-6 ESD and Surge Protection (TVS/ESD) ROHSUMWESD And Surge Protection (TVS/ESD)
BSS123
SOT-23-55℃~+150℃ 1 N-channel 1.4V 1.4nC@10V 100V 170mA 22pF 2pF 3.5pF 680mW 6Ω@10V、10Ω@4.5V N-Channel SOT-23 MOSFETs ROHShongjiachengMOSFETs
README
README.mdBMP_Expansion_Card
Parts
46| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 100nF | Capacitor_SMD:C_0805_2012Metric | C4, C12, C13, C17 |
| 4 | 4.7k | Resistor_SMD:R_0603_1608Metric | R4, R5, R6, R7 |
| 4 | 74LVC2T45DC | Package_SO:VSSOP-8_2.3x2mm_P0.5mm | U4, U5, U6, U7 |
| 4 | TestPoint | TestPoint:TestPoint_Pad_1.5x1.5mm | TP1, TP2, TP3, TP4 |
| 3 | 10k 1% 1/10W | Resistor_SMD:R_0603_1608Metric | R2, R11, R12 |
| 2 | 10uF | Capacitor_SMD:C_0805_2012Metric | C1, C2 |
| 2 | 22R | Resistor_SMD:R_0603_1608Metric | R8, R9 |
| 2 | BSS123 | Package_TO_SOT_SMD:SOT-23 | Q3, Q4 |
| 2 | CJ3139KW / BSS83P | Package_TO_SOT_SMD:SOT-323_SC-70 | Q1, Q2 |
| 2 | MountingHole | MountingHole:MountingHole_2.2mm_M2 | H1, H2 |
| 1 | 1.5k | Resistor_SMD:R_0603_1608Metric | R3 |
| 1 | 4.7k 1% 1/10W | Resistor_SMD:R_0603_1608Metric | R10 |
| 1 | 4.7uF | Capacitor_SMD:C_0805_2012Metric | C11 |
| 1 | 5.1k | Resistor_SMD:R_0603_1608Metric | R1 |
| 1 | AMBER | LED_SMD:LED_0805_2012Metric | LED4 |
| 1 | AP2112K-3.3 | Package_TO_SOT_SMD:SOT-23-5 | U1 |
| 1 | BLUE | LED_SMD:LED_0805_2012Metric | LED3 |
| 1 | Conn_02x05_Counter_Clockwise | Connector_JST:JST_GH_BM07B-GHS-TBT_1x07-1MP_P1.25mm_Vertical | J2 |
| 1 | GREEN | LED_SMD:LED_0805_2012Metric | LED1 |
| 1 | Jumper_NO_Small | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1 |
| 1 | RED | LED_SMD:LED_0805_2012Metric | LED2 |
| 1 | R_Pack08 | Resistor_SMD:R_Array_Convex_8x0602 | RN1 |
| 1 | STM32F103C8Tx | Package_QFP:LQFP-48_7x7mm_P0.5mm | U2 |
| 1 | Serial | Connector_JST:JST_GH_BM04B-GHS-TBT_1x04-1MP_P1.25mm_Vertical | J1 |
| 1 | Tag connect | Connector:Tag-Connect_TC2030-IDC-NL_2x03_P1.27mm_Vertical | J3 |
| 1 | USBLC6-2SC6 | Package_TO_SOT_SMD:SOT-23-6 | U3 |
| 1 | USB_C_Plug_USB2.0 | Expansion_Card:USB_C_Plug_Molex_105444 | P1 |
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Questions
How big is the Expansion Card PCB?
It measures 26 × 30 mm and has 4 copper layers, 4.69 mm thick.
What parts does the Expansion Card use?
46 parts, built around the 74LVC2T45DC, AP2112K-3.3, USBLC6-2SC6 and BSS123. 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 Expansion Card KiCad files?
From the Churrosoft/BMP_Expansion_Card repository on GitHub, at the commit this page was made from: the board is Electrical/Expansion_Card.kicad_pcb and its schematic Electrical/Expansion_Card.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Expansion Card 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).