2 layers38.1 × 21.6 mm
2 layers120.6 × 19 mm
USBtoTTL Serial
DavidMFlynn/USB-to-Serial1USB to TTL Packet Serial
- Size
- 120.6 × 19 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 38
- Nets
- 32
- Pads
- 113
- Tracks, vias
- 204, 13
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20200104)
- Created
- 11 Apr 2020
- Updated
- 7 Jun 2020
Overview
USBtoTTL Serial is an open-source printed circuit board by DavidMFlynn, from the DavidMFlynn/USB-to-Serial repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 120.6 × 19 mm with 38 parts on 32 nets, routed with 204 tracks and 13 vias.
It is built around the 1N4148W. Its parts include 10 diodes, 10 connectors, 7 capacitors, 6 resistors and 2 ICs. It belongs with the interfaces and adapters boards of this library.
Main components
1README
README.mdUSB-to-Serial
Parts
38| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 1N4148W | Diode_SMD:D_SOD-123 | D3, D4, D5, D6, D7, D8, D9, D10 |
| 8 | Conn_01x04 | Connector_Molex:Molex_SL_171971-0004_1x04_P2.54mm_Vertical | J4, J5, J6, J7, J8, J9, J10, J11 |
| 4 | 0.1uf | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C4, C5, C6, C7 |
| 4 | 4K7 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R1, R2, R3, R4 |
| 2 | 0 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R5, R6 |
| 2 | 15pf | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C1, C3 |
| 2 | LED | LED_SMD:LED_1206_3216Metric_Pad1.42x1.75mm_HandSolder | D1, D2 |
| 2 | MountingHole_3.2mm_M3 | MountingHole:MountingHole_3.2mm_M3 | H1, H2 |
| 1 | 12MHz | Crystal:Crystal_HC49-4H_Vertical | Y1 |
| 1 | 4.7uf | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C2 |
| 1 | Conn_01x02 | Connector_Molex:Molex_SL_171971-0002_1x02_P2.54mm_Vertical | J3 |
| 1 | MCP1700-1202E_SOT23 | Package_TO_SOT_SMD:SOT-23 | U1 |
| 1 | MCP2200-I-SO | Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm | U2 |
| 1 | USB_B | Connector_USB:USB_B_OST_USB-B1HSxx_Horizontal | J1 |
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Questions
How big is the USBtoTTL Serial PCB?
It measures 120.6 × 19 mm and has 2 copper layers, 1.6 mm thick.
What parts does the USBtoTTL Serial use?
38 parts, built around the 1N4148W. 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 USBtoTTL Serial KiCad files?
From the DavidMFlynn/USB-to-Serial repository on GitHub, at the commit this page was made from: the board is mcp2200_Packet8/USBtoTTL_Serial.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the USBtoTTL Serial design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).