IsoUSBRS422
About the IsoUSBRS422 PCB
IsoUSBRS422 is an open source PCB design by alperyazar, published on GitHub. It is a 2-layer board measuring 49.8 × 49.8 mm, with 63 components from 23 distinct parts.
Other key parts include the FT230XS-R, SN74LVC2T45DCUR and ADM2682EBRIZ. By type, the board carries 26 capacitors, 20 resistors, 5 ICs, 5 diodes, 4 connectors and 1 inductor.
From the project
isoUSBRS422 is an isolated USB - RS422/RS485 converter. It is designed using KiCad. Repository includes KiCad project and necessary firmware files.
Tested KiCad Version: (2013-07-07 BZR 4022)-stable on Windows 7 SP1
Main components on the IsoUSBRS422
IsoUSBRS422 bill of materials (BOM)
63 components, 23 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | FT230XS-R FT230X FTDI | SSOP16 | U101 |
| 3 | SN74LVC2T45DCUR SN74LVC2T45 Texas Instruments | R_PDSO_G8 | U102, U103, U105 |
| 1 | ADM2682EBRIZ ADM2682E Analog Devices | SO16W | U104 |
| 1 | 61400416121 USB Würth Elektronik | USB_B | J101 |
| 3 | ADA724 KLE3MM5 Adafruit Industries | KLE3mm5 | J102, J103, J104 |
| 1 | VAL** | Hole_2mm8_6mm0 | Hole_2mm8_6mm0 |
| 1 | MF-MSMF050-2 Bourns | MS_MSMF_Style_1 | TH101 |
| 1 | HSMS-C680 LED_PWR Avago | CR_10_LED | D101 |
| 1 | HSMG-C680 LED_TX Avago | CR_10_LED | D102 |
| 1 | HSMS-C680 LED_RX Avago | CR_10_LED | D103 |
| 2 | PSM712-LF-T7 PSM712LFT7 Protek Devices | SOT23 | D104, D105 |
| 1 | MI0805K601R-10 Laird | SM0805 | FB101 |
| 2 | C0603C470J5GACTU 47 pF Kemet | SM0603 | C101, C102 |
| 12 | C0603C104K4RACTU 100 nF Kemet | SM0603 | C103, C104, C108, C109, C110, C111, C116, C118 +4 |
| 7 | 0805YC475KAT2A 4.7 uF AVX | SM0805 | C105, C107, C112, C115, C122, C123, C126 |
| 3 | C0603C103K5RACTU 10 nF Kemet | SM0603 | C106, C113, C117 |
| 2 | 1206YC106KAT2A 10 uF AVX | SM1206 | C114, C119 |
| 2 | CR0603-FX-27R0ELF 27 Bourns | SM0603 | R101, R102 |
| 1 | CR0603-FX-3300GLF 330 Bourns | SM0603 | R103 |
| 2 | CR0603-FX-2700GLF 270 Bourns | SM0603 | R104, R105 |
Show 3 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 8 | CR0603-FX-1002GLF 10k Bourns | SM0603 | R106, R107, R108, R109, R110, R111, R112, R120 |
| 6 | CR0603-J/-000ELF 0 Bourns | SM0603 | R113, R114, R116, R117, R118, R119 |
| 1 | CR0603-FX-1210ELF 121 Bourns | SM0603 | R115 |
IsoUSBRS422 design files
The KiCad project lives in the alperyazar/isoUSBRS422 repository on GitHub; these links point at the commit this page was built from.
IsoUSBRS422: common questions
How big is the IsoUSBRS422 PCB?
The IsoUSBRS422 measures 49.8 × 49.8 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the IsoUSBRS422?
63 components, from 23 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the IsoUSBRS422 design files?
From the alperyazar/isoUSBRS422 repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the IsoUSBRS422 design in my own project?
The repository has no license, so all rights stay with alperyazar. Use it as a reference, and ask the author before reusing the design.