

Overview
The PCA9534D is an interface Specialized made by NXP Semiconductors with 16 pins.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:PCA9554D, from EasyEDA) and its footprint (EasyEDA_Cloud:SO-16_L10.3-W7.5-P1.27-LS10.6-BL, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C17545672). 4 open-source boards in 3 repositories on GitHub use it.
Symbol
Footprint
Order codes
1- PCA9534DLCSC C17545672
Pinout
16| Pin | Name | Type |
|---|---|---|
| 1 | A0 | Unspecified |
| 2 | A1 | Unspecified |
| 3 | A2 | Unspecified |
| 4 | IO0 | Unspecified |
| 5 | IO1 | Unspecified |
| 6 | IO2 | Unspecified |
| 7 | IO3 | Unspecified |
| 8 | VSS | Unspecified |
| 9 | IO4 | Unspecified |
| 10 | IO5 | Unspecified |
| 11 | IO6 | Unspecified |
| 12 | IO7 | Unspecified |
| 13 | INT# | Unspecified |
| 14 | SCL | Unspecified |
| 15 | SDA | Unspecified |
| 16 | VDD | Unspecified |
Open-source boards using it
All 4- 4 layers130 × 130 mm

- 4 layers126.2 × 94 mm

- 4 layers75 × 96 mm

- 2 layers188 × 97 mm

Relais
Th3Link/homeautomation
Components for a CAN-bus home-automation system: relay/rollershutter/ light/button/sensor nodes on a shared CAN bus, bridged to MQTT (and from there to openHAB or Home Assistant) by a gateway.
101 partsGPL-3.0
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<iframe src="https://pcbkit.io/embed/parts/nxp/PCA9534D" title="PCA9534D in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/nxp/PCA9534D.jpg" alt="PCA9534D" width="1200" height="900">[](https://pcbkit.io/parts/nxp/PCA9534D)Questions
Is there a KiCad symbol and footprint for the PCA9534D?
Yes. The symbol is EasyEDA_Cloud:PCA9554D and the footprint EasyEDA_Cloud:SO-16_L10.3-W7.5-P1.27-LS10.6-BL, both drawn on this page. PCBKit places them on a board for you when you design with it.
Where is the PCA9534D datasheet?
NXP Semiconductors publishes it: the Datasheet link on this page opens it.
Where can I order the PCA9534D?
JLCPCB lists it as part C17545672, with 0 in stock; the sellers' links on this page open their listings.
What can replace the PCA9534D?
Parts like it in the library: the PCA2129T/Q900/2 by NXP Semiconductors. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the PCA9534D?
4 boards in 3 repositories on GitHub; the most starred are listed on this page, with their KiCad files.