4 layers102.9 × 96.7 mm
PicoGUS chipdown
polpo/picogus
Emulation of ISA sound cards and CD-ROM on Raspberry Pi Pico (GUS, SB/Adlib, MPU-401, Tandy, CMS, Panasonic CD-ROM) with USB mouse/joystick support
99 parts805
2 layers99.3 × 22.4 mm
Rc2014-icecore
electrified/rc2014-level-shifterThis source describes Open Hardware and is licensed under the CERN-OHL-P v2 You may redistribute and modify this documentation and make products using it under the terms of the CERN-OHL-P v2 (https:/cern.ch/cern-ohl).
- Size
- 99.3 × 22.4 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 20
- Nets
- 100
- Pads
- 224
- Tracks, vias
- 859, 28
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 20 Oct 2020
- Updated
- 3 Jan 2026
Overview
Rc2014-icecore is an open-source printed circuit board by electrified, from the electrified/rc2014-level-shifter repository on GitHub. It is a 2-layer board of 99.3 × 22.4 mm with 20 parts on 100 nets, routed with 859 tracks and 28 vias.
It is built around the SN74CB3T3245PW and LM1117MP-3.3. Its parts include 7 capacitors, 6 ICs, 3 connectors and 1 resistor.
Main components
2
SN74CB3T3245PW
TSSOP-20-40℃~+85℃ 0.25ns@3.3V,50pF 2.3V~3.6V 40uA 8/8 Output enable high-impedance、Power-off protection、Level shifting Single Supply TSSOP-20 Signal Switches, Multiplexers, Decoders ROHSTexas InstrumentsSignal Switches, Multiplexers, Decoders
LM1117MP-3.3
SOT-2230℃~+125℃@(Ta) 1 1.2V@(800mA) 15V 3.3V 5mA 75dB@(120Hz) 800mA 99uVrms Fixed Over Current Protection、Over Temperature Protection Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
README
README.mdBoard to interface 3.3v FPGA board with RC2014
BOM
5x SN74CB3T3245
LD1117S33TR
100nF 0805 capacitors
10μF 0805 capacitors
License
Copyright Ed Brindley 2020.
This source describes Open Hardware and is licensed under the CERN-OHL-P v2 You may redistribute and modify this documentation and make products using it under the terms of the CERN-OHL-P v2 (https:/cern.ch/cern-ohl). This documentation is distributed WITHOUT ANY EXPRESS OR IMPLIED WARRANTY, INCLUDING OF MERCHANTABILITY, SATISFACTORY QUALITY AND FITNESS FOR A PARTICULAR PURPOSE. Please see the CERN-OHL-P v2 for applicable conditions
Parts
20| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | C | Capacitor_SMD:C_0603_1608Metric | C3, C4, C5, C6, C7 |
| 5 | SN74CB3T3245 | Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm | U2, U3, U4, U5, U6 |
| 2 | C_Polarized_Small | Capacitor_SMD:C_0603_1608Metric | C1, C2 |
| 1 | Conn_01x10 | rc2014:PinHeader_1x10_P2.54mm_Vertical_NoSilk | J2 |
| 1 | Conn_01x39 | rc2014:PinHeader_1x39_P2.54mm_Vertical_NoSilk | J1 |
| 1 | Conn_02x25_Odd_Even | Connector_PinSocket_2.54mm:PinSocket_2x25_P2.54mm_Vertical | J3 |
| 1 | Jumper_2_Open | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | JP2 |
| 1 | Jumper_3_Bridged12 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | JP1 |
| 1 | LM1117MP-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U1 |
| 1 | R | Resistor_SMD:R_0603_1608Metric | R1 |
The 19 most common of 20 parts.
Questions
How big is the Rc2014-icecore PCB?
It measures 99.3 × 22.4 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Rc2014-icecore use?
20 parts, built around the SN74CB3T3245PW and LM1117MP-3.3. 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 Rc2014-icecore KiCad files?
From the electrified/rc2014-level-shifter repository on GitHub, at the commit this page was made from: the board is rc2014-icecore.kicad_pcb and its schematic rc2014-icecore.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Rc2014-icecore design in my own project?
Its repository states no licence, so its author keeps all rights: ask electrified before reusing the design.
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