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PCF8574DW on a board, in 3D

PCF8574DW

Texas Instruments

-40℃~+85℃ 100kHz 10uA 1mA 2.5V~6V 25mA 8 I2C Interrupt Output Push-Pull Reset function、Cascading and address extension、Built-in LED driver SOIC-16-300mil I/O Expanders ROHS

Extended
DatasheetJLCPCBLCSCti/PCF8574DW
Category
I, O Expanders
Package
SOIC-16-300mil
Pins
16

Overview

The PCF8574DW is an i, O Expander made by Texas Instruments in a SOIC-16-300mil package with 16 pins. -40℃~+85℃ 100kHz 10uA 1mA 2.5V~6V 25mA 8 I2C Interrupt Output Push-Pull Reset function、Cascading and address extension、Built-in LED driver SOIC-16-300mil I/O Expanders ROHS.

PCBKit's library has its KiCad symbol (Analog & Interface:PCF8574DW, from CERN's library) and its footprint (Package_SO:SOIC-16W_7.5x10.3mm_P1.27mm, from KiCad's library), ready for a KiCad board. 5 are in stock at JLCPCB (part C1542490). 5 open-source boards in 4 repositories on GitHub use it.

Symbol

INT13A01A12A23SCL14SDA15VCC16P04P15P26P37P49P510P611P712GND8
Analog & Interface:PCF8574DWFrom CERN's library

Footprint

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

From the datasheet

14
Supply, least
2.5 V · VCC, recommended operating, min · p. 4
Supply, most
6 V · VCC, recommended operating, max · p. 4
Supply, absolute maximum
6.5 V · VCC, absolute maximum · p. 4
Works from
-40 °C · Operating free-air temperature, min · p. 4
Works up to
85 °C · Operating free-air temperature, max · p. 4
Junction, hottest
150 °C · Junction temperature, absolute maximum · p. 4
Takes working
40 µA · VCC, operating mode, 100 kHz, IO = 0, 5 V, 25°C, typical · p. 5
Takes at most
100 µA · VCC, operating mode, 100 kHz, IO = 0, 6 V, max · p. 5
Takes asleep
2.5 µA · VCC, standby mode, IO = 0, 5 V, 25°C, typical · p. 5
A pin gives at most
50 mA · Per output, continuous sink current, absolute maximum · p. 4
Junction to air (DW)
76.7 K/W · Junction-to-ambient thermal resistance · p. 4
Junction to board (DW)
45.8 K/W · Junction-to-board thermal resistance · p. 4
Junction to case (DW)
45.1 K/W · Junction-to-case top thermal resistance · p. 4
Data rate, most
100 kbit/s · I2C clock frequency, max · p. 5

Parameters

22
Clock Frequency
100kHz
Current - Output High(IOH)
1mA
Current - Output Low(IOL)
25mA
Current - Supply
40uA
Current - Supply(Max)
100uA
Data Rate
100kbps
Features
Built-in LED driver
Interface
I2C
Interrupt Output
Interrupt Output
Junction Temperature(Max)
150℃
Number of I/O
8
Number of Supporting Devices
8
Operating Temperature
-40℃~+85℃
Output Current per Pin(Max)
50mA
Output Type
Push-Pull
Quiescent Supply Current
10uA
Standby Current
2.5uA
Thermal Resistance(Junction to Ambient)
76.7℃/W
Thermal Resistance(Junction to Board)
45.8℃/W
Thermal Resistance(Junction to Case)
45.1℃/W
Voltage - Supply
2.5V~6V
Voltage - Supply(Absolute Max)
6.5V

Order codes

1

Pinout

16
The pins of the PCF8574DW
PinNameType
1A0Input
2A1Input
3A2Input
4P0Input/output
5P1Input/output
6P2Input/output
7P3Input/output
8GNDPower in
9P4Input/output
10P5Input/output
11P6Input/output
12P7Input/output
13INTOutput
14SCLInput
15SDAInput/output
16VCCInput/output

Open-source boards using it

All 5
  • 2 layers71.6 × 108.8 mmMacropad, the printed circuit board in 3D

    Macropad

    imhwinters/Macropad

    Macropad

    32 parts
  • 4 layers85 × 50 mmOpenHap, the printed circuit board in 3D

    OpenHap

    kenyattaejones32-boop/AQM

    Open-source hardware design for OpenHAP, an ESP32-based air quality monitor with CO sensing, thermistor temperature input, USB-C charging, and cellular data upload.

    269 parts
  • 2 layers71.6 × 108.8 mmMacropad, the printed circuit board in 3D

    Macropad

    imhwinters/Macropad

    Macropad

    23 parts
  • 4 layers103 × 80.5 mmRobodev signals, the printed circuit board in 3D

    Robodev signals

    juleswwebb/portfolio

    A static engineering portfolio for https://juleswwebb.github.io/portfolio/.

    100 parts
  • 2 layers125 × 89.5 mmLta logic module, the printed circuit board in 3D

    Lta logic module

    kimballa/like-the-art-pcb

    PCB Schematics for Like The Art project

    113 parts

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Questions

Is there a KiCad symbol and footprint for the PCF8574DW?

Yes. The symbol is Analog & Interface:PCF8574DW 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 PCF8574DW?

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

Where is the PCF8574DW datasheet?

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

Where can I order the PCF8574DW?

JLCPCB lists it as part C1542490, with 5 in stock; the sellers' links on this page open their listings.

What can replace the PCF8574DW?

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 PCF8574AT/TR by HGSEMI. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Which open-source boards use the PCF8574DW?

5 boards in 4 repositories on GitHub; the most starred are listed on this page, with their KiCad files.

Parts like it

8