Overview
The CAT9554AYGI is an i, O Expander made by onsemi with 16 pins. Reset function、Cascade and address expansion - I/O Expanders.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:CAT9554YGI, from EasyEDA) and its footprint (EasyEDA_Cloud:TSSOP-16_L5.0-W4.4-P0.65-LS6.4-BL-1, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C3170298).
Symbol
Footprint
Parameters
1- Features
- Reset function；Cascade and address expansion
Order codes
1- CAT9554AYGILCSC C3170298
Pinout
16| Pin | Name | Type |
|---|---|---|
| 1 | A0 | Unspecified |
| 2 | A1 | Unspecified |
| 3 | A2 | Unspecified |
| 4 | I/O0 | Unspecified |
| 5 | I/O1 | Unspecified |
| 6 | I/O2 | Unspecified |
| 7 | I/O3 | Unspecified |
| 8 | VSS | Unspecified |
| 9 | I/O4 | Unspecified |
| 10 | I/O5 | Unspecified |
| 11 | I/O6 | Unspecified |
| 12 | I/O7 | Unspecified |
| 13 | #INT | Unspecified |
| 14 | SCL | Unspecified |
| 15 | SDA | Unspecified |
| 16 | VCC | Unspecified |
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<iframe src="https://pcbkit.io/embed/parts/onsemi/CAT9554AYGI" title="CAT9554AYGI in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/onsemi/CAT9554AYGI.jpg" alt="CAT9554AYGI" width="1200" height="900">[](https://pcbkit.io/parts/onsemi/CAT9554AYGI)Questions
Is there a KiCad symbol and footprint for the CAT9554AYGI?
Yes. The symbol is EasyEDA_Cloud:CAT9554YGI and the footprint EasyEDA_Cloud:TSSOP-16_L5.0-W4.4-P0.65-LS6.4-BL-1, both drawn on this page. PCBKit places them on a board for you when you design with it.
Where can I order the CAT9554AYGI?
JLCPCB lists it as part C3170298, with 0 in stock; the sellers' links on this page open their listings.
What can replace the CAT9554AYGI?
Parts like it in the library: the CAT9554AYGI-T2 by onsemi and the CAT9554YGI by onsemi. Check their datasheets: a part that fits the footprint may still differ in its ratings.
