
ElectronULA
adbsolutions/ElectronULA
Project to create replacement ULA board for Acorn Electron

FT Element, but with an FT601 instead of an FT600 for double the data rate
Ft601-shield is an open-source printed circuit board by JosephFeld, from the JosephFeld/ft601-element repository on GitHub. It is a 4-layer board of 65 × 46.4 mm with 47 parts on 162 nets, routed with 2,715 tracks and 376 vias.
It is built around the FT601Q-B-T, HD3SS3212IRKSR and MIC7221YM5-TR, with the SK34A among its other parts. Its parts include 27 capacitors, 11 resistors, 3 ICs, 3 diodes and 1 connector.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 9 | 100n | Capacitor_SMD:C_0603_1608Metric | C10, C12, C16, C17, C22, C23, C24, C25, C30 |
| 6 | 470n | Capacitor_SMD:C_0603_1608Metric | C11, C13, C20, C21, C28, C29 |
| 5 | 0.1u | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C3, C4, C5, C6, C7 |
| 3 | 10k | Resistor_SMD:R_0603_1608Metric | R2, R3, R12 |
| 3 | 6.8n | Capacitor_SMD:C_0603_1608Metric | C18, C19, C26 |
| 2 | 100k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R5, R9 |
| 2 | 18p | Capacitor_SMD:C_0603_1608Metric | C1, C2 |
| 2 | 5.1k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R6, R7 |
| 2 | Green | LED_SMD:LED_0603_1608Metric | D1, D6 |
| 1 | 1.6k | Resistor_SMD:R_0603_1608Metric | R13 |
| 1 | 100 | Resistor_SMD:R_0603_1608Metric | R1 |
| 1 | 10k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R8 |
| 1 | 10u | Capacitor_SMD:C_0603_1608Metric | C9 |
| 1 | 1u | Capacitor_SMD:C_0603_1608Metric | C27 |
| 1 | 30Meg | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | 4.3k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R4 |
| 1 | Alchitry_Element_AU | Handheld_MRI:Element | B1 |
| 1 | FT601Q-B-T | Handheld_MRI:QFN40P900X900X100-77N | U1 |
| 1 | HD3SS3212IRKSR | handheld_mri_footprints:SN74HCS541RKSR | U2 |
| 1 | MIC7221YM5-TR | handheld_mri_footprints:SOT95P280X130-5N | IC1 |
| 1 | SK34A | Handheld_MRI:DIOM4325X250N | D2 |
| 1 | USB_C_Receptacle | handheld_mri_footprints:AMPHENOL_12401899E412A | J1 |
It measures 65 × 46.4 mm and has 4 copper layers, 1.6 mm thick.
47 parts, built around the FT601Q-B-T, HD3SS3212IRKSR, MIC7221YM5-TR and SK34A. 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.
From the JosephFeld/ft601-element repository on GitHub, at the commit this page was made from: the board is hardware/ft601-shield.kicad_pcb and its schematic hardware/alchitry-io.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask JosephFeld before reusing the design.

adbsolutions/ElectronULA
Project to create replacement ULA board for Acorn Electron




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