2 layers220 × 127 mm
2 layers190.5 × 158.4 mm
68k dev
maded2/68000468000 Retro computer with Amiga Chipset
- Size
- 190.5 × 158.4 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 84
- Nets
- 261
- Pads
- 1,107
- Tracks, vias
- 5,446, 432
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 5 Jan 2021
- Updated
- 11 Mar 2021
Overview
68k dev is an open-source printed circuit board by maded2, from the maded2/68000 repository on GitHub, published under the Apache-2.0 licence. It is a 2-layer board of 190.5 × 158.4 mm with 84 parts on 261 nets, routed with 5,446 tracks and 432 vias.
It is built around the EPM7128SLC84-15N, SN74LVC245AN and AMS1117-3.3, with the DS1813-10+T&R and TXS0108EPW among its other parts. Its parts include 33 capacitors, 25 ICs, 7 diodes, 5 connectors and 4 resistors. It belongs with the retro computing and games boards and the FPGA and CPLD boards of this library.
Main components
5
EPM7128SLC84-15N
-0℃~+70℃ 128 15ns 2500 4.75V~5.25V 68 8 In-system programming MAX 7000S - Programmable Logic Device (CPLDs/FPGAs) ROHSIntel/AlteraProgrammable Logic Device (CPLDs/FPGAs)
SN74LVC245AN
DIP-20UncategorisedTexas Instruments
AMS1117-3.3
SOT-223-40℃~+125℃ 0.003%Vout 1 1.1V@(800mA) 15V 1A 3.3V 5mA 72dB@(120Hz) Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
DS1813-10+T&R
TO-92-3-40℃~+85℃@(Ta) 1 1.2V~5.5V 150ms 4.35V Active Low No Open Drain Power Supervisor Yes TO-92-3 Supervisor and Reset ICs ROHSMaxim Integrated (Analog Devices)Supervisor And Reset ICs
TXS0108EPW
TSSOP-20-40℃~+85℃ 1 1.4V~3.6V 1.65V~5.5V 60Mbps 8 Automatic direction detection、Output enable high-impedance、Integrated pull-up resistor Bidirectional Level translator Push-Pull、Open-drain TSSOP-20 Translators, Level Shifters ROHSTexas InstrumentsTranslators, Level Shifters
README
README.md68000
68000 Retro computer (soon with Amiga Chipset)
Parts
84| Qty | Value | Footprint | References |
|---|---|---|---|
| 28 | 100nF | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C1, C2, C10, C14, C15, C16, C17, C18, C19, C20, C21, C22, C23, C24, C25, C26 +12 |
| 12 | CY7C1049D | KiCad_Libraries:SOJ-36_10.16x23.49mm_P1.27mm_sram | U4, U6, U7, U8, U9, U10, U11, U12, U13, U16, U17, U18 |
| 7 | LED | LED_SMD:LED_0805_2012Metric | D1, D2, D3, D4, D5, D6, D7 |
| 5 | 470 | Resistor_SMD:R_Array_Convex_4x0603 | RN1, RN2, RN4, RN5, RN8 |
| 4 | 1K | Resistor_SMD:R_0805_2012Metric | R1, R2, R3, R4 |
| 4 | 74LS244 | Package_SO:SSOP-20_5.3x7.2mm_P0.65mm | U15, U20, U21, U22 |
| 3 | 1uF | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C4, C5, C6 |
| 2 | 22uF | Capacitor_SMD:CP_Elec_6.3x7.7 | C12, C13 |
| 2 | SN74LVC245AN | KiCad_Libraries:SOIC127P1032X265-20N | U23, U24 |
| 1 | 10K | Resistor_SMD:R_Array_Convex_4x0603 | RN3 |
| 1 | 16550 | Package_DIP:DIP-40_W15.24mm | U14 |
| 1 | 1825910-6 | digikey-footprints:Switch_Tactile_THT_6x6mm | S1 |
| 1 | 640456-3 | digikey-footprints:PinHeader_1x3_P2.54_Drill1.1mm | J1 |
| 1 | 68000D | Package_DIP:DIP-64_W22.86mm_Socket_LongPads | U1 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U5 |
| 1 | Barrel_Jack | Connector_BarrelJack:BarrelJack_Horizontal | J5 |
| 1 | CXO_DIP14 | Oscillator:Oscillator_DIP-14_LargePads | X2 |
| 1 | Conn_02x20_Odd_Even | Connector_PinSocket_2.54mm:PinSocket_2x20_P2.54mm_Horizontal | J3 |
| 1 | DS1813-10+T&R | Package_TO_SOT_THT:TO-92L_Inline | IC1 |
| 1 | EPM7128SLC84-15N | Package_LCC:PLCC-84_THT-Socket | U3 |
| 1 | JTAG | Connector_PinHeader_2.54mm:PinHeader_2x05_P2.54mm_Vertical | J4 |
| 1 | Jumper | TestPoint:TestPoint_2Pads_Pitch2.54mm_Drill0.8mm | JP1 |
| 1 | LOGO | logos:twitter | G*** |
| 1 | M27C1024 | Package_DIP:DIP-40_W15.24mm_LongPads | U2 |
| 1 | Passive_Bus_ISA_16bit | Connector_PCBEdge:BUS_AT | J2 |
| 1 | TXS0108EPW | Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm | U25 |
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Questions
How big is the 68k dev PCB?
It measures 190.5 × 158.4 mm and has 2 copper layers, 1.6 mm thick.
What parts does the 68k dev use?
84 parts, built around the EPM7128SLC84-15N, SN74LVC245AN, AMS1117-3.3 and DS1813-10+T&R. 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 68k dev KiCad files?
From the maded2/68000 repository on GitHub, at the commit this page was made from: the board is hardware/68k_sbc/68k_dev.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the 68k dev design in my own project?
Its repository publishes it under the Apache-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).