Skip to the content
PCBKitNew board
PCF8575DBQ on a board, in 3D

PCF8575DBQ

Texas Instruments

-40℃~+85℃ 16 1mA 2.5V~5.5V 25mA 400kHz I2C、SMBus Interrupt Output Push-Pull Reset function、Cascading and address extension、Built-in LED driver SSOP-24-150mil I/O Expanders ROHS

Extended
DatasheetJLCPCBLCSCti/PCF8575DBQ
Category
I, O Expanders
Package
SSOP-24-150mil
Pins
24

Overview

The PCF8575DBQ is an i, O Expander made by Texas Instruments in a SSOP-24-150mil package with 24 pins. -40℃~+85℃ 16 1mA 2.5V~5.5V 25mA 400kHz I2C、SMBus Interrupt Output Push-Pull Reset function、Cascading and address extension、Built-in LED driver SSOP-24-150mil I/O Expanders ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:TCA9535PWR(UMW), from EasyEDA) and its footprint (EasyEDA_Cloud:SSOP-24_L8.7-W3.9-P0.64-LS6.0-BL, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C2669731).

Symbol

VCC24SDA23SCL22A021P1720P1619P1518P1417P1316P1215P1114P1013GND12P0711P0610P059P048P037P026P015P004A23A12INT#1
EasyEDA_Cloud:TCA9535PWR(UMW)From EasyEDA

Footprint

123456789101112131415161718192021222324
EasyEDA_Cloud:SSOP-24_L8.7-W3.9-P0.64-LS6.0-BLFrom EasyEDA

Parameters

11
Clock Frequency
400kHz
Current - Output High(IOH)
1mA
Current - Output Low(IOL)
25mA
Features
Built-in LED driver；Reset function；Cascading and address extension
Interface
I2C；SMBus
Interrupt Output
Interrupt Output
Number of I/O
16
Number of Supporting Devices
8
Operating Temperature
-40℃~+85℃
Output Type
Push-Pull
Voltage - Supply
2.5V~5.5V

Order codes

1

Pinout

24
The pins of the PCF8575DBQ
PinNameType
1INT#Unspecified
2A1Unspecified
3A2Unspecified
4P00Unspecified
5P01Unspecified
6P02Unspecified
7P03Unspecified
8P04Unspecified
9P05Unspecified
10P06Unspecified
11P07Unspecified
12GNDUnspecified
13P10Unspecified
14P11Unspecified
15P12Unspecified
16P13Unspecified
17P14Unspecified
18P15Unspecified
19P16Unspecified
20P17Unspecified
21A0Unspecified
22SCLUnspecified
23SDAUnspecified
24VCCUnspecified

Show this part on your page

A live frame, for any web page
<iframe src="https://pcbkit.io/embed/parts/ti/PCF8575DBQ" title="PCF8575DBQ in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>
A picture
<img src="https://pcbkit.io/embed/parts/ti/PCF8575DBQ.jpg" alt="PCF8575DBQ" width="1200" height="900">
A picture that opens the part, for a README
[![PCF8575DBQ](https://pcbkit.io/embed/parts/ti/PCF8575DBQ.jpg?size=s)](https://pcbkit.io/parts/ti/PCF8575DBQ)

Questions

Is there a KiCad symbol and footprint for the PCF8575DBQ?

Yes. The symbol is EasyEDA_Cloud:TCA9535PWR(UMW) and the footprint EasyEDA_Cloud:SSOP-24_L8.7-W3.9-P0.64-LS6.0-BL, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the PCF8575DBQ?

SSOP-24-150mil, with 24 pins. Its footprint is drawn on this page.

Where is the PCF8575DBQ datasheet?

Texas Instruments publishes it: the Datasheet link on this page opens it.

Where can I order the PCF8575DBQ?

JLCPCB lists it as part C2669731, with 0 in stock; the sellers' links on this page open their listings.

What can replace the PCF8575DBQ?

Parts like it in the library: the PCA9539DBQ by Texas Instruments, the PCA9555PW by NXP Semiconductors, the AW9523BTQR by AWINIC and the TCA6416ARTWR by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

8