2 layers44.5 × 46.9 mm
OSO SWAT B1-jig
joeycastillo/Sensor-Watch
A board replacement for the classic Casio F-91W wristwatch
31 parts2.1k
2 layers198.2 × 49.2 mm
BufferBox
JQIamo/digital-buffer-boxDigital Buffer Box
- Size
- 198.2 × 49.2 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 31
- Nets
- 40
- Pads
- 140
- Tracks, vias
- 220, 426
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 6 Oct 2021
- Updated
- 27 Aug 2024
Overview
BufferBox is an open-source printed circuit board by JQIamo, from the JQIamo/digital-buffer-box repository on GitHub. It is a 2-layer board of 198.2 × 49.2 mm with 31 parts on 40 nets, routed with 220 tracks and 426 vias.
It is built around the SN64BCT25244DW and ADUM140D0BRZ. Its parts include 11 connectors, 8 capacitors, 8 resistors and 3 ICs.
Main components
2
SN64BCT25244DW
SOIC-24-300mil-40℃~+85℃ 11mA 188mA 2 4 4.5V~5.5V 64BCT 80mA Tri-State Unidirectional SOIC-24-300mil Buffers, Drivers, Receivers, Transceivers ROHSTexas InstrumentsBuffers, Drivers, Receivers, Transceivers
ADUM140D0BRZ
SOIC-16-40℃~+125℃ 0 1.8V~5.5V 1.8V~5.5V 100kV/us 13ns 150Mbps 3000 4 SOIC-16 Digital Isolators ROHSAnalog DevicesDigital Isolators
README
README.mdDigital Buffer Box
Parts
31| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 25 | Resistor_SMD:R_0805_2012Metric | R2, R3, R4, R5, R6, R7, R8, R9 |
| 8 | Conn_Coaxial_Power | Connector_Coaxial:BNC_Amphenol_B6252HB-NPP3G-50_Horizontal | J0, J1, J2, J3, J4, J5, J6, J7 |
| 4 | 0.1uF | Capacitor_SMD:C_0805_2012Metric | C3, C4, C5, C6 |
| 2 | 0.47uF | Capacitor_SMD:C_0805_2012Metric | C7, C8 |
| 2 | 10uF | Capacitor_SMD:C_1210_3225Metric | C1, C2 |
| 2 | ADUM140D0BRZ | Package_SO:SOIC-16W_7.5x10.3mm_P1.27mm | U1, U2 |
| 2 | Conn_01x02 | Connector_Molex:Molex_KK-254_AE-6410-02A_1x02_P2.54mm_Vertical | J8, J9 |
| 1 | Conn_02x08_Odd_Even | Connector_IDC:IDC-Header_2x08_P2.54mm_Vertical | J10 |
| 1 | LOGO | BufferBox:jqi-logo | G*** |
| 1 | SN64BCT25244 | Package_SO:SOIC-24W_7.5x15.4mm_P1.27mm | U3 |
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Questions
How big is the BufferBox PCB?
It measures 198.2 × 49.2 mm and has 2 copper layers, 1.6 mm thick.
What parts does the BufferBox use?
31 parts, built around the SN64BCT25244DW and ADUM140D0BRZ. 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 BufferBox KiCad files?
From the JQIamo/digital-buffer-box repository on GitHub, at the commit this page was made from: the board is BufferBox.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the BufferBox design in my own project?
Its repository states no licence, so its author keeps all rights: ask JQIamo before reusing the design.