

Overview
The PCA9554AD is an i, O Expander made by NXP Semiconductors in a SO-16-300mil package with 16 pins. -40℃~+85℃ 10mA 2.3V~5.5V 24mA 250nA 400kHz 4V 500mV 8 8 I2C、SMBus Interrupt Output Reset function、Cascading and address extension SO-16-300mil I/O Expanders ROHS.
PCBKit's library has its footprint (Package_SO:SOIC-16W_7.5x10.3mm_P1.27mm, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C2669729). 3 open-source boards in 2 repositories on GitHub use it.
Symbol
The library has no symbol for this part yet.
Footprint
Parameters
13- Clock Frequency
- 400kHz
- Current - Output High(IOH)
- 10mA
- Current - Output Low(IOL)
- 24mA
- Features
- Reset function;Cascade and address expansion
- Interface
- I2C;SMBus
- Interrupt Output
- Interrupt Output
- Number of I/O
- 8
- Number of Supporting Devices
- 8
- Operating Temperature
- -40℃~+85℃
- Output Logic Level - High
- 4V
- Output Logic Level - Low
- 500mV
- Quiescent Supply Current
- 250nA
- Voltage - Supply
- 2.3V~5.5V
Order codes
1- PCA9554AD,118LCSC C2669729
Open-source boards using it
All 3- 4 layers70 × 47.5 mm

- 2 layers49.3 × 103.7 mm

- 2 layers84.9 × 51.2 mm

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Is there a KiCad symbol and footprint for the PCA9554AD?
Yes. the footprint Package_SO:SOIC-16W_7.5x10.3mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the PCA9554AD?
SO-16-300mil, with 16 pins. Its footprint is drawn on this page.
Where can I order the PCA9554AD?
JLCPCB lists it as part C2669729, with 0 in stock; the sellers' links on this page open their listings.
What can replace the PCA9554AD?
Parts like it in the library: the TCA9534DW by Texas Instruments, the PCA9538DW by Texas Instruments, the PCA9534D,118 by NXP Semiconductors and the PCA9554ADW by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the PCA9554AD?
3 boards in 2 repositories on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
8TCA9534DW
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SOIC-16-300mil-40℃~+85℃ 2.3V~5.5V 400kHz 8 I2C、SMBus Interrupt Output SOIC-16-300mil I/O Expanders ROHSTexas InstrumentsI/O ExpandersPCA9534D,118
SO-16-300mil-40℃~+85℃ 10mA 2.3V~5.5V 24mA 250nA 400kHz 4V 8 8 I2C、SMBus Interrupt Output Reset function、Cascading and address extension SO-16-300mil I/O Expanders ROHSNXP SemiconductorsI/O ExpandersPCA9554ADW
SOIC-16-300mil-40℃~+85℃ 10mA 2.3V~5.5V 25mA 3V 400kHz 500mV 8 8 90uA I2C、SMBus Interrupt Output Push-Pull Reset function、Cascade and address expansion、Built-in LED driver SOIC-16-300mil I/O Expanders ROHSTexas InstrumentsI/O ExpandersPCA9534DW
SOIC-16-300mil-40℃~+85℃ 1.5uA 10mA 2.3V~5.5V 25mA 400kHz 4V 500mV 8 8 I2C、SMBus Interrupt Output Push-Pull Reset function、Cascading and address extension、Built-in LED driver SOIC-16-300mil I/O Expanders ROHSTexas InstrumentsI/O ExpandersTCA9554ADW
SOIC-16-300mil-40℃~+85℃ 1.65V~5.5V 10mA 1uA 25mA 4.1V 400kHz 400mV 8 8 I2C、SMBus Interrupt Output Push-Pull Reset function、Cascading and address extension、Built-in LED driver SOIC-16-300mil I/O Expanders ROHSTexas InstrumentsI/O ExpandersTCA9534ADW
SOIC-16-300mil-40℃~+85℃ 1.5uA 1.65V~5.5V 10mA 25mA 4.1V 400kHz 500mV 8 8 I2C、SMBus Interrupt Output Push-Pull Reset function、Cascading and address extension、Built-in LED driver SOIC-16-300mil I/O Expanders ROHSTexas InstrumentsI/O ExpandersPCA8574D
SO-16-300milI/O ExpandersNXP Semiconductors