2 layers90 × 70 mm
2 layers60 × 54 mm
Aif io
hcmos/aif-io_pcb- Size
- 60 × 54 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 91
- Nets
- 108
- Pads
- 309
- Tracks, vias
- 482, 262
- Pours
- 11
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 6 Sep 2025
- Updated
- 15 Dec 2025
Overview
Aif io is an open-source printed circuit board by hcmos, from the hcmos/aif-io_pcb repository on GitHub. It is a 2-layer board of 60 × 54 mm with 91 parts on 108 nets, routed with 482 tracks and 262 vias.
It is built around the ISOW1044BDFMR, THVD1420D and XC6206P332MR. Its parts include 36 capacitors, 18 resistors, 6 ICs, 6 connectors and 3 diodes. It belongs with the STM32 boards of this library.
Main components
3
ISOW1044BDFMR
DFM-20CAN FD、总线故障检测与保护、低功耗模式、唤醒功能、使能/关断模式 DFM-20 Isolated CAN Transceivers (with Power) ROHSTexas InstrumentsAC-DC Controllers And Regulators
THVD1420D
SOIC-8-40℃~+125℃ 1 1 1.5mA 12Mbps 256 3V~5.5V Half-Duplex Transceiver ±12kV SOIC-8 RS-485 / RS-422 ICs ROHSTexas InstrumentsRS-485 / RS-422 ICs
XC6206P332MR
SOT-23-40℃~+85℃@(Ta) 1 1uA 200mA 3.3V 6V Fixed Over Current Protection Positive SOT-23-3L Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTorex SemiconductorVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
Parts
91| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | FerriteBead | Inductor_SMD:L_0402_1005Metric | FB1, FB2, FB3, FB4, FB5, FB6, FB7, FB8, FB9, FB10 |
| 7 | 0.1u | Capacitor_SMD:C_0402_1005Metric | C2, C7, C10, C11, C12, C13, C14 |
| 6 | 0.1u | Capacitor_SMD:C_0603_1608Metric | C1, C22, C23, C31, C32, C37 |
| 6 | 10u | Capacitor_SMD:C_0603_1608Metric | C19, C25, C27, C28, C34, C36 |
| 6 | 1u | Capacitor_SMD:C_0603_1608Metric | C17, C18, C20, C26, C29, C35 |
| 4 | 10 | Resistor_SMD:R_0603_1608Metric | R5, R6, R17, R18 |
| 4 | 10k | Resistor_SMD:R_0603_1608Metric | R1, R2, R9, R16 |
| 4 | 10n | Capacitor_SMD:C_0603_1608Metric | C21, C24, C30, C33 |
| 4 | 120 | Resistor_SMD:R_0603_1608Metric | R3, R4, R7, R19 |
| 4 | Jumper_2_Open | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | JP1, JP2, JP3, JP4 |
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 2 | 1.2k | Resistor_SMD:R_0603_1608Metric | R10, R13 |
| 2 | 18p | Capacitor_SMD:C_0402_1005Metric | C3, C4 |
| 2 | 2.2u | Capacitor_SMD:C_0603_1608Metric | C5, C6 |
| 2 | 4.7k | Resistor_SMD:R_0603_1608Metric | R14, R15 |
| 2 | AMT21 | Connector_JST:JST_XA_B04B-XASK-1_1x04_P2.50mm_Vertical | J5, J6 |
| 2 | CAN | Connector_JST:JST_XA_B03B-XASK-1_1x03_P2.50mm_Vertical | J3, J4 |
| 2 | ISOW1044BDFMR | Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm | IC1, IC2 |
| 2 | LED | LED_SMD:LED_0603_1608Metric | D3, D4 |
| 2 | THVD1420D | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U1, U5 |
| 1 | 100u | Capacitor_THT:C_Radial_D6.3mm_H11.0mm_P2.50mm | C15 |
| 1 | 10k | Resistor_SMD:R_0402_1005Metric | R8 |
| 1 | 1u | Capacitor_SMD:C_0402_1005Metric | C9 |
| 1 | 25MHz | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | 3.3k | Resistor_SMD:R_0603_1608Metric | R12 |
| 1 | 4.7u | Capacitor_SMD:C_0402_1005Metric | C8 |
| 1 | 600@100MHz | Resistor_SMD:R_0805_2012Metric | L1 |
| 1 | LED | LED_SMD:LED_0805_2012Metric | D1 |
| 1 | LOGO | logo_pretty:rdclab_small | G*** |
| 1 | PWR | Connector_JST:JST_XA_B02B-XASK-1_1x02_P2.50mm_Vertical | J1 |
| 1 | ST-LINK | my_pretty:JTAG_BOX_CONN | J2 |
| 1 | STM32F405RGTx | Package_QFP:LQFP-64_10x10mm_P0.5mm | U2 |
| 1 | SW_Push | Button_Switch_SMD:SW_Push_1P1T_XKB_TS-1187A | SW1 |
| 1 | XC6206P332MR | Package_TO_SOT_SMD:SOT-23-3 | U4 |
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Questions
How big is the Aif io PCB?
It measures 60 × 54 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Aif io use?
91 parts, built around the ISOW1044BDFMR, THVD1420D and XC6206P332MR. 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 Aif io KiCad files?
From the hcmos/aif-io_pcb repository on GitHub, at the commit this page was made from: the board is aif_io.kicad_pcb and its schematic ISOW1044.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Aif io design in my own project?
Its repository states no licence, so its author keeps all rights: ask hcmos before reusing the design.