4 layers97.2 × 82.7 mm
2 layers57.1 × 76.2 mm
PCF8574DIOI2C
freudenthal/PCF8574DIOI2CPCF8574 I2C expander module.
- Size
- 57.1 × 76.2 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 93
- Nets
- 35
- Pads
- 228
- Tracks, vias
- 613, 80
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 20 Sep 2023
- Updated
- 20 Sep 2023
Overview
PCF8574DIOI2C is an open-source printed circuit board by freudenthal, from the freudenthal/PCF8574DIOI2C repository on GitHub. It is a 2-layer board of 57.1 × 76.2 mm with 93 parts on 35 nets, routed with 613 tracks and 80 vias.
It is built around the PCF8574TS/3 and 24FC01T-I/OT. Its parts include 40 resistors, 21 capacitors, 14 connectors, 13 diodes and 3 transistors.
Main components
2
PCF8574TS/3
SSOP-20-4.4mm-40℃~+85℃ 100kHz 10mA 2.5V~6V 2.5uA 300uA 8 8 I2C Interrupt Output Reset function、Cascading and address extension、Built-in LED driver SSOP-20-4.4mm I/O Expanders ROHSNXP SemiconductorsI/O Expanders
24FC01T-I/OT
SOT-23-5-40℃~+85℃ 1,000,000 cycles 1.7V~5.5V 1Kbit 1MHz 200 Years 5ms Hardware write protection function、Noise suppression function I2C SOT-23-5 EEPROM ROHSMicrochip TechnologyEEPROM
Parts
93| Qty | Value | Footprint | References |
|---|---|---|---|
| 24 | 1.2kΩ | Resistor_SMD:R_0805_2012Metric | R10, R11, R12, R13, R14, R16, R18, R19, R20, R21, R22, R23, R24, R25, R26, R27 +8 |
| 20 | 1uF | Capacitor_SMD:C_0805_2012Metric | C1, C2, C4, C5, C10, C11, C13, C14, C19, C20, C21, C23, C27, C31, C35, C39 +4 |
| 13 | 10kΩ | Resistor_SMD:R_0805_2012Metric | R1, R2, R3, R4, R5, R6, R39, R40, R41, R42, R43, R57, R58 |
| 11 | 100V | Package_TO_SOT_SMD:SOT-23-3 | D1, D2, D4, D11, D15, D17, D18, D25, D29, D33, D37 |
| 8 | DIO | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J5, J6, J7, J8, J11, J12, J13, J14 |
| 4 | M3 | MountingHole:MountingHole_3.2mm_M3_DIN965_Pad | J1, J2, J3, J4 |
| 2 | Q_NMOS_GSD | Package_TO_SOT_SMD:SOT-23 | Q1, Q2 |
| 1 | 100kΩ | Resistor_SMD:R_0805_2012Metric | R15 |
| 1 | 10V | Diode_SMD:D_SOD-123 | D3 |
| 1 | 10uF | Capacitor_SMD:C_0805_2012Metric | C3 |
| 1 | 24FC01T-I/OT | Package_TO_SOT_SMD:SOT-23-5 | U6 |
| 1 | 500Ω | Resistor_SMD:R_0805_2012Metric | R17 |
| 1 | I2C | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J9 |
| 1 | LED | LED_SMD:LED_0805_2012Metric | D5 |
| 1 | NS | Resistor_SMD:R_0805_2012Metric | R44 |
| 1 | PCF8574TS | Package_SO:SSOP-20_4.4x6.5mm_P0.65mm | U1 |
| 1 | Q_PMOS_GSD | Package_TO_SOT_SMD:SOT-23 | Q5 |
| 1 | Vin | TerminalBlock:TerminalBlock_bornier-2_P5.08mm | J15 |
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Questions
How big is the PCF8574DIOI2C PCB?
It measures 57.1 × 76.2 mm and has 2 copper layers, 1.6 mm thick.
What parts does the PCF8574DIOI2C use?
93 parts, built around the PCF8574TS/3 and 24FC01T-I/OT. 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 PCF8574DIOI2C KiCad files?
From the freudenthal/PCF8574DIOI2C repository on GitHub, at the commit this page was made from: the board is PCF8574DIOI2C.kicad_pcb and its schematic DigitalIO.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the PCF8574DIOI2C design in my own project?
Its repository states no licence, so its author keeps all rights: ask freudenthal before reusing the design.