2 layers73.9 × 73.2 mm
2 layers85.2 × 71.3 mm
Bootarooni
phooky/bootarooni12A Raspberry Pi Pico (RP2040) based Apple IIe expansion card with USB isolation.
- Size
- 85.2 × 71.3 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 34
- Nets
- 104
- Pads
- 329
- Tracks, vias
- 718, 77
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 26 Feb 2021
- Updated
- 21 Apr 2021
Overview
Bootarooni is an open-source printed circuit board by phooky, from the phooky/bootarooni repository on GitHub. It is a 2-layer board of 85.2 × 71.3 mm with 34 parts on 104 nets, routed with 718 tracks and 77 vias.
It is built around the 74AHCT1G125SE, 74LCX541WM and 74LS299DC, with the 74LS05P-E and ADUM3160BRW among its other parts. Its parts include 9 capacitors, 8 ICs, 4 resistors, 4 diodes and 1 connector.
Main components
5
74AHCT1G125SE
SOT-353-40℃~+125℃ 1 1 4.5V~5.5V 4.7ns@5V,50pF 40uA 74AHCT 8mA 8mA Schmitt trigger Tri-State Unidirectional SOT-353 Buffers, Drivers, Receivers, Transceivers ROHSDiodes IncorporatedBuffers, Drivers, Receivers, Transceivers
74LCX541WM
SOIC-20-300mil-40℃~+85℃ 10uA 24mA 24mA 2V~3.6V 6.5ns@3.3V,50pF 74LCX 8 Power-off isolation、Output enable、Hot-swap support Tri-State SOIC-20-300mil Buffers, Drivers, Receivers, Transceivers ROHSonsemiBuffer/Driver/Transceiver74LS299DC
-0.4mA、2.6mA 0℃~+70℃ 35MHz 35ns@5V,15pF 4.75V~5.25V 74LS 8 8mA、24mA Asynchronous clear function、Output enable、Asynchronous parallel load function、Supports forward and reverse shift Tri-State - Shift RegistersTexas InstrumentsShift Registers74LS05P-E
-- Inverters ROHSRenesas ElectronicsLogic Gates
ADUM3160BRW
SOIC16WFull/Low Speed 2.5 kV USB Digital IsolatorAnalog DevicesUncategorised
Parts
34| Qty | Value | Footprint | References |
|---|---|---|---|
| 9 | 0.1uF | Capacitor_SMD:C_0805_2012Metric | C1, C2, C3, C4, C5, C6, C7, C8, C9 |
| 4 | GREEN | LED_SMD:LED_0805_2012Metric | D1, D2, D3, D4 |
| 3 | 74LS299 | Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm | U6, U7, U8 |
| 2 | 24R | Resistor_SMD:R_0805_2012Metric | R1, R2 |
| 2 | 27K | Resistor_SMD:R_0805_2012Metric | R3, R4 |
| 2 | TestPoint | TestPoint:TestPoint_Pad_D1.5mm | TP2, TP3 |
| 2 | top mount | MountingHole:MountingHole_3.2mm_M3 | H1, H2 |
| 1 | 470R | bootarooni:SOIC-8 | RN2 |
| 1 | 47K | bootarooni:SOIC-8 | RN1 |
| 1 | 74AHCT1G125 | Package_TO_SOT_SMD:SOT-353_SC-70-5 | U5 |
| 1 | 74LCX541 | Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm | U4 |
| 1 | 74LS05 | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U1 |
| 1 | A2_BUS | Apple2_bus:BUS_A2 | BUS1 |
| 1 | ADUM3160 | Package_SO:SOIC-16W_7.5x10.3mm_P1.27mm | U3 |
| 1 | Pico_USB | MCU_RaspberryPi_and_Boards:RPi_Pico_USB_SMD_TH | U2 |
| 1 | TestPoint | TestPoint:TestPoint_Pad_D2.0mm | TP1 |
| 1 | USB_B_Micro | Connector_USB:USB_Micro-B_Amphenol_10103594-0001LF_Horizontal | J1 |
Questions
How big is the Bootarooni PCB?
It measures 85.2 × 71.3 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Bootarooni use?
34 parts, built around the 74AHCT1G125SE, 74LCX541WM, 74LS299DC and 74LS05P-E. 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 Bootarooni KiCad files?
From the phooky/bootarooni repository on GitHub, at the commit this page was made from: the board is hardware/bootarooni.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Bootarooni design in my own project?
Its repository states no licence, so its author keeps all rights: ask phooky before reusing the design.
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