Skip to the content
PCBKitNew board
PCF8574APWR on a board, in 3D

PCF8574APWR

Texas Instruments

-40℃~+85℃ 100kHz 10uA 2.5V~6V 25mA 310uA 8 Cascading and address extension、Built-in LED driver I2C Interrupt Output Push-Pull ETSSOP-20 I/O Expanders ROHS

Extended
DatasheetJLCPCBLCSCti/PCF8574APWR
Category
I, O Expanders
Package
ETSSOP-20
Pins
20

Overview

The PCF8574APWR is an i, O Expander made by Texas Instruments in a ETSSOP-20 package with 20 pins. -40℃~+85℃ 100kHz 10uA 2.5V~6V 25mA 310uA 8 Cascading and address extension、Built-in LED driver I2C Interrupt Output Push-Pull ETSSOP-20 I/O Expanders ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:PCF8574ADGVR, from EasyEDA) and its footprint (EasyEDA_Cloud:ETSSOP20_L6.5-W4.4-P0.65-LS6.4-BL, from EasyEDA), ready for a KiCad board. 3,657 are in stock at JLCPCB (part C94361). 7 open-source boards in 5 repositories on GitHub use it.

Symbol

INT#1SCL2NC3SDA4VCC5A06A17NC8A29P010P111P212NC13P314GND15P416P517NC18P619P720
EasyEDA_Cloud:PCF8574ADGVRFrom EasyEDA

Footprint

1234567891011121314151617181920
EasyEDA_Cloud:ETSSOP20_L6.5-W4.4-P0.65-LS6.4-BLFrom EasyEDA

Parameters

11
Clock Frequency
100kHz
Current - Output High(IOH)
310uA
Current - Output Low(IOL)
25mA
Features
Cascade and address expansion
Interface
I2C
Interrupt Output
Interrupt Output
Number of I/O
8
Operating Temperature
-40℃~+85℃
Output Type
Push-Pull
Quiescent Supply Current
10uA
Voltage - Supply
2.5V~6V

Order codes

1

Pinout

20
The pins of the PCF8574APWR
PinNameType
1INT#Unspecified
2SCLUnspecified
3NCUnspecified
4SDAUnspecified
5VCCUnspecified
6A0Unspecified
7A1Unspecified
8NCUnspecified
9A2Unspecified
10P0Unspecified
11P1Unspecified
12P2Unspecified
13NCUnspecified
14P3Unspecified
15GNDUnspecified
16P4Unspecified
17P5Unspecified
18NCUnspecified
19P6Unspecified
20P7Unspecified

Open-source boards using it

All 7
  • 2 layers92.1 × 78.1 mmPaperd ink rev3, the printed circuit board in 3D

    Paperd ink rev3

    paperdink/paperd.ink_hw

    Hardware files for paperd.ink

    92 parts9CC-BY-SA-4.0
  • 2 layers40 × 40 mmPCB PCB wristwatch v1.1 2024-03-06, the printed circuit board in 3D

    PCB PCB wristwatch v1.1 2024-03-06

    The-Wrench/Smart-watch-PCB-esp32s3

    a smart watch making use of HDSP-2000 alphanumeric displays and an esp32s3 with an RTC/c

    74 parts3
  • 4 layers76 × 88 mmHoerbaer, the printed circuit board in 3D

    Hoerbaer

    drachosaurus/hoerbaer

    Hör Bär (v2)

    233 parts1
  • 2 layers89 × 44 mmPeanut, the printed circuit board in 3D

    Peanut

    WYVERN2742/Peanut

    Pinenut-01S BL602 Motherboard

    58 parts1
  • 2 layers92.1 × 78.1 mmPaperd.ink, the printed circuit board in 3D

    Paperd.ink

    paperdink/paperd.ink_hw

    Hardware files for paperd.ink

    87 parts9CC-BY-SA-4.0
  • 2 layers100 × 50 mmChrismettal ESP Hiro ESP Hiro, the printed circuit board in 3D

    Chrismettal ESP Hiro ESP Hiro

    punkfab/pcb-corpus

    235 real KiCad boards from open-source hardware repositories, prepared as a placement and routing benchmark

    102 parts1
  • 2 layers92 × 44 mmPeanut dev, the printed circuit board in 3D

    Peanut dev

    WYVERN2742/Peanut

    Pinenut-01S BL602 Motherboard

    54 parts1

Show this part on your page

A live frame, for any web page
<iframe src="https://pcbkit.io/embed/parts/ti/PCF8574APWR" title="PCF8574APWR 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/PCF8574APWR.jpg" alt="PCF8574APWR" width="1200" height="900">
A picture that opens the part, for a README
[![PCF8574APWR](https://pcbkit.io/embed/parts/ti/PCF8574APWR.jpg?size=s)](https://pcbkit.io/parts/ti/PCF8574APWR)

Questions

Is there a KiCad symbol and footprint for the PCF8574APWR?

Yes. The symbol is EasyEDA_Cloud:PCF8574ADGVR and the footprint EasyEDA_Cloud:ETSSOP20_L6.5-W4.4-P0.65-LS6.4-BL, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the PCF8574APWR?

ETSSOP-20, with 20 pins. Its footprint is drawn on this page.

Where is the PCF8574APWR datasheet?

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

Where can I order the PCF8574APWR?

JLCPCB lists it as part C94361, with 3,657 in stock; the sellers' links on this page open their listings.

What can replace the PCF8574APWR?

Parts like it in the library: the PCF8574T/3,518 by NXP Semiconductors, the PCF8574T/TR by HGSEMI, the PCF8574DWR by Texas Instruments and the XL8574TS by XINLUDA. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Which open-source boards use the PCF8574APWR?

7 boards in 5 repositories on GitHub; the most starred are listed on this page, with their KiCad files.

Parts like it

8