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PCA8574D, in 3D

PCA8574D

NXP Semiconductors

Extended
JLCPCBLCSCnxp/PCA8574D
Category
I, O Expanders
Package
SO-16-300mil
Pins
16

Overview

The PCA8574D is an i, O Expander made by NXP Semiconductors in a SO-16-300mil package with 16 pins.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:PCF8574DWRG, from EasyEDA) and its footprint (Package_SO:SOIC-16W_7.5x10.3mm_P1.27mm, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C2669737). 2 open-source boards in 2 repositories on GitHub use it.

Symbol

A01A12A23P04P15P26P37VSS8P49P510P611P712INT#13SCL14SDA15VDD16
EasyEDA_Cloud:PCF8574DWRGFrom EasyEDA

Footprint

12345678910111213141516
Package_SO:SOIC-16W_7.5x10.3mm_P1.27mmFrom KiCad's library

Parameters

9
Clock Frequency
400kHz
Current - Output Low(IOL)
25mA
Interface
I2C
Interrupt Output
Interrupt Output
Number of I/O
8
Number of Supporting Devices
16
Operating Temperature
-40℃~+85℃
Quiescent Current
4.5uA
Voltage - Supply
2.3V~5.5V

Order codes

1

Pinout

16
The pins of the PCA8574D
PinNameType
1A0Unspecified
2A1Unspecified
3A2Unspecified
4P0Unspecified
5P1Unspecified
6P2Unspecified
7P3Unspecified
8VSSUnspecified
9P4Unspecified
10P5Unspecified
11P6Unspecified
12P7Unspecified
13INT#Unspecified
14SCLUnspecified
15SDAUnspecified
16VDDUnspecified

Open-source boards using it

All 2
  • 2 layers115 × 100 mmCog1, the printed circuit board in 3D

    Cog1

    diegodemarco/cog1

    cog1 is an open-source industrial IoT gateway (hardware and software) built as a motherboard hosting an Orange Pi Zero 3 Linux SBC.

    133 parts6MIT

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A live frame, for any web page
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A picture
<img src="https://pcbkit.io/embed/parts/nxp/PCA8574D.jpg" alt="PCA8574D" width="1200" height="900">
A picture that opens the part, for a README
[![PCA8574D](https://pcbkit.io/embed/parts/nxp/PCA8574D.jpg?size=s)](https://pcbkit.io/parts/nxp/PCA8574D)

Questions

Is there a KiCad symbol and footprint for the PCA8574D?

Yes. The symbol is EasyEDA_Cloud:PCF8574DWRG and 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 PCA8574D?

SO-16-300mil, with 16 pins. Its footprint is drawn on this page.

Where can I order the PCA8574D?

JLCPCB lists it as part C2669737, with 0 in stock; the sellers' links on this page open their listings.

What can replace the PCA8574D?

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 PCA8574D?

2 boards in 2 repositories on GitHub; the most starred are listed on this page, with their KiCad files.

Parts like it

8