4 layers26.4 × 56 mm
RPI5-SDexpress Hat
will127534/RPI5-SDexpress-Hat
ctrl-c "RPI5-CFE-Hat" ctrl-v "RPI5-SDexpress-Hat"
51 parts37MIT
4 layers65 × 56 mm
RPI5-CFE Hat
will127534/RPI5-CFE-Hat25CFexpress Card hat for Raspberry Pi 5
- Size
- 65 × 56 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 59
- Nets
- 49
- Pads
- 201
- Tracks, vias
- 315, 153
- Pours
- 12
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 24 Mar 2024
- Updated
- 18 Feb 2025
Overview
RPI5-CFE Hat is an open-source printed circuit board by will127534, from the will127534/RPI5-CFE-Hat repository on GitHub, published under the MIT licence. It is a 4-layer board of 65 × 56 mm with 59 parts on 49 nets, routed with 315 tracks and 153 vias.
It is built around the STM8S003F3P6, LP5907MFX-3.3 and TCA9406DCT. Its parts include 13 capacitors, 9 connectors, 8 resistors, 4 ICs and 4 diodes. It belongs with the STM8 boards of this library.
Main components
3
STM8S003F3P6
TSSOP-20-40℃~+85℃ 10bit 128Byte 16 16MHz 1KB 2.95V~5.5V 8 Bit 8KB Built-in FLASH STM8 TSSOP-20 Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)
LP5907MFX-3.3
SOT-23-5-40℃~+125℃@(Tj) 1 10uVrms 12uA 250mA 250mV@(250mA) 3.3V 5.5V 82dB@(1kHz) Fixed Positive Short Circuit Protection、Thermal shutdown、Enable control、Input under-voltage protection、Output discharge SOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
TCA9406DCT
SSOP82-Bit Bidirectional 1-MHz, I2C Bus and SMBus Voltage-Level Translator with 8-kV HBM ESDTexas InstrumentsUncategorised
README
README.mdCFexpress PCIe Hat for Raspberry Pi 5
Welcome to the GitHub repository for the open-source CFexpress (CFE) PCIe Hat designed specifically for the Raspberry Pi 5. This project aims to enhance the Raspberry Pi 5 by adding the ability to interface with CFexpress Type B cards directly, enabling high-speed data transfer and storage solutions.
Features
- CFexpress Type B Card slot: Directly connect a CFexpress Type B card to your Raspberry Pi 5 for high-speed data storage and transfer.
- Automated Card Mounting: Utilizes a CH32V003 MCU for I2C to GPIO control, enabling the automated mounting and unmounting of the CFexpress card with the press of an eject button.
- QWIIC Hub: Includes a simple QWIIC hub that provides four additional QWIIC ports, allowing for easy expansion and connectivity with other QWIIC-compatible devices.
- Flexible Mounting Options: Designed to be mounted either on the top or the bottom of the Raspberry Pi 5. When mounted on top, the I2C connection is made directly from the GPIO header on the Raspberry Pi 5. For bottom mounting, the QWIIC port is used to connect and enable the auto-mount script.
Notes
- Automounting feature requires I2C connection from either QWIIC port or RPI GPIO
- The board does not support hot-unplug even with the auto-mount script, so you will need to press the eject button to signal unmount request
- Gerber and CPL file for JLCPCB is under /Gerber
- Interactive BOM (provided by InteractiveHtmlBom) and JLCPCB BOM under /bom
- Source Code for CH32V003 based I2C to GPIO and Python code on RPI under /software
- Limited amount on Tindle for sell
Support
For questions, issues, or suggestions, please open an issue in the GitHub repository
Also see Quick Start Guide
License
This project is licensed under the MIT License - see the LICENSE file for details.
Parts
59| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | TestPoint | TestPoint:TestPoint_Pad_D1.0mm | TP_3V1, TP1, TP2, TP3, TP4, TP5, TP6, TP7 |
| 5 | Conn_01x04_Shielded | Connector_JST:JST_SH_SM04B-SRSS-TB_1x04-1MP_P1.00mm_Horizontal | J4, J6, J7, J8, J9 |
| 5 | MountingHole | MountingHole:MountingHole_2.7mm_M2.5 | H1, H2, H3, H4, H5 |
| 4 | 100nF | Capacitor_SMD:C_0402_1005Metric | C6, C7, C12, C13 |
| 4 | 470R | Resistor_SMD:R_0402_1005Metric | R4, R5, R6, R7 |
| 4 | SolderJumper_2_Open | Jumper:SolderJumper-2_P1.3mm_Open_Pad1.0x1.5mm | JP1, JP2, JP3, JP4 |
| 3 | 22uF | Capacitor_SMD:C_0805_2012Metric | C2, C3, C8 |
| 2 | 4.7uF | Capacitor_SMD:C_0603_1608Metric | C10, C11 |
| 2 | LOGO | LOGO | G***, G*** |
| 2 | Red | LED_SMD:LED_0603_1608Metric | D1, D4 |
| 1 | 1.5uH | Inductor_SMD:L_Vishay_IHLP-2020 | L1 |
| 1 | 100pF | Capacitor_SMD:C_0402_1005Metric | C9 |
| 1 | 10K | Resistor_SMD:R_0402_1005Metric | R14 |
| 1 | 10nF | Capacitor_SMD:C_0402_1005Metric | C5 |
| 1 | 10uF | Capacitor_SMD:C_0805_2012Metric | C1 |
| 1 | 137K | Resistor_SMD:R_0402_1005Metric | R2 |
| 1 | 1nF | Capacitor_SMD:C_0402_1005Metric | C4 |
| 1 | 30K | Resistor_SMD:R_0402_1005Metric | R3 |
| 1 | 4.7K | Resistor_SMD:R_0402_1005Metric | R1 |
| 1 | 821101-1120030 | footprints:8211011120030 | J3 |
| 1 | Blue | LED_SMD:LED_0603_1608Metric | D2 |
| 1 | Conn_01x02_Shielded | Connector_JST:JST_SH_SM02B-SRSS-TB_1x02-1MP_P1.00mm_Horizontal | J2 |
| 1 | Conn_01x16_Shielded | Connector_FFC-FPC:Hirose_FH12-16S-0.5SH_1x16-1MP_P0.50mm_Horizontal | J1 |
| 1 | Conn_02x03_Odd_Even | Connector_PinSocket_2.54mm:PinSocket_2x03_P2.54mm_Vertical | J5 |
| 1 | LP5907MFX-3.3 | Package_TO_SOT_SMD:SOT-23-5 | U3 |
| 1 | STM8S003F3P | Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm | U2 |
| 1 | SW_Push | Button_Switch_SMD:Panasonic_EVQPUM_EVQPUD | SW1 |
| 1 | TCA9406DC | footprints:TCA9406DCUR | U4 |
| 1 | TPS564242DRLR | footprint:TPS564242DRLR_TEX | U1 |
| 1 | Yellow | LED_SMD:LED_0603_1608Metric | D3 |
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Questions
How big is the RPI5-CFE Hat PCB?
It measures 65 × 56 mm and has 4 copper layers, 1.6 mm thick.
What parts does the RPI5-CFE Hat use?
59 parts, built around the STM8S003F3P6, LP5907MFX-3.3 and TCA9406DCT. 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 RPI5-CFE Hat KiCad files?
From the will127534/RPI5-CFE-Hat repository on GitHub, at the commit this page was made from: the board is RPI5-CFE-Hat.kicad_pcb and its schematic RPI5-CFE-Hat.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the RPI5-CFE Hat 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).