

Schematics and PCB layout for my TPC65 single-board computer
- Size
- 100 × 100 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 46
- Nets
- 88
- Pads
- 338
- Tracks, vias
- 875, 113
- Pours
- 9
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 25 Oct 2020
- Updated
- 13 Nov 2020
Overview
Tpc65 is an open-source printed circuit board by halfburnttoast, from the halfburnttoast/TPC65_Hardware repository on GitHub, published under the GPL-2.0 licence. It is a 2-layer board of 100 × 100 mm with 46 parts on 88 nets, routed with 875 tracks and 113 vias.
It is built around the 74LS00SC and L7805. Its parts include 12 capacitors, 8 resistors, 7 ICs, 6 diodes and 6 connectors. It belongs with the computers and single-board computers boards and the AVR (ATmega, ATtiny) boards of this library.
Main components
274LS00SC
-0℃~+70℃ 15ns@5V,50pF 2 2.7V 2V 4 4.75V~5.25V 400uA 500mV 74LS 800mV 8mA NAND Gate - Logic Gates ROHSTexas InstrumentsLogic GatesL7805
TO-220ST0℃~+125℃@(Tj) 1 1.2A 20V 2V@(1A) 42uV 500uA 5V 73dB@(120Hz) Fixed Positive Short Circuit Protection TO-220ST Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSOSENVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
Parts
46| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | 100n | Capacitor_THT:C_Disc_D4.3mm_W1.9mm_P5.00mm | C1, C6, C7, C8, C9, C11, C12 |
| 4 | 100u | Capacitor_THT:CP_Radial_D5.0mm_P2.00mm | C2, C3, C4, C10 |
| 3 | 10K | Resistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolder | R3, R6, R7 |
| 2 | 1K | Resistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolder | R4, R8 |
| 2 | D | Diode_THT:D_T-1_P5.08mm_Horizontal | D4, D5 |
| 2 | LED | LED_SMD:LED_1206_3216Metric_Pad1.42x1.75mm_HandSolder | D1, D3 |
| 2 | Q_NPN_BCE | Package_TO_SOT_SMD:SOT-23_Handsoldering | Q1, Q3 |
| 2 | WD65C22 | Package_DIP:DIP-40_W15.24mm_Socket | U6, U7 |
| 1 | 10u | Capacitor_THT:CP_Radial_D5.0mm_P2.00mm | C5 |
| 1 | 1K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R5 |
| 1 | 1k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1 |
| 1 | 28C256 | Package_DIP:DIP-28_W15.24mm_Socket | U2 |
| 1 | 3.3k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R2 |
| 1 | 74LS00 | Package_DIP:DIP-14_W7.62mm_Socket | U4 |
| 1 | Arduino_Nano_v3.x | Module:Arduino_Nano | A1 |
| 1 | D_Schottky | Diode_SMD:D_SOD-123 | D6 |
| 1 | L7805 | Package_TO_SOT_THT:TO-220F-3_Horizontal_TabDown | U3 |
| 1 | LED | LED_THT:LED_D5.0mm | D2 |
| 1 | LOGO | hoot:hoot | G*** |
| 1 | MASTER CLOCK | TestPoint:TestPoint_Pad_1.0x1.0mm | TP1 |
| 1 | PORTA | Connector_PinSocket_2.54mm:PinSocket_2x02_P2.54mm_Vertical | J6 |
| 1 | PORTB | Connector_PinSocket_2.54mm:PinSocket_2x06_P2.54mm_Vertical | J2 |
| 1 | PORTC | Connector_PinSocket_2.54mm:PinSocket_2x06_P2.54mm_Vertical | J5 |
| 1 | PORTD | Connector_PinSocket_2.54mm:PinSocket_2x06_P2.54mm_Vertical | J4 |
| 1 | POWER IN | TerminalBlock:TerminalBlock_bornier-2_P5.08mm | J1 |
| 1 | Q_PNP_BCE | Package_TO_SOT_SMD:SOT-23_Handsoldering | Q2 |
| 1 | SD_CARD | Connector_PinSocket_2.54mm:PinSocket_1x06_P2.54mm_Vertical | J3 |
| 1 | SW_Push | Button_Switch_THT:SW_PUSH_6mm | SW1 |
| 1 | UM61256A | Package_DIP:DIP-28_W7.62mm_Socket | U5 |
| 1 | WD65C02 | Package_DIP:DIP-40_W15.24mm_Socket | U1 |
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Questions
How big is the Tpc65 PCB?
It measures 100 × 100 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Tpc65 use?
46 parts, built around the 74LS00SC and L7805. 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 Tpc65 KiCad files?
From the halfburnttoast/TPC65_Hardware repository on GitHub, at the commit this page was made from: the board is tpc65.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Tpc65 design in my own project?
Its repository publishes it under the GPL-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).