Skip to the content
PCBKitNew board
PCA9555D on a board, in 3D

PCA9555D

NXP Semiconductors

Reset function、Cascading and address extension SO-24-300mil I/O Expanders ROHS

Extended
DatasheetJLCPCBLCSCnxp/PCA9555D
Category
I, O Expanders
Package
SO-24-300mil
Pins
24

Overview

The PCA9555D is an i, O Expander made by NXP Semiconductors in a SO-24-300mil package with 24 pins. Reset function、Cascading and address extension SO-24-300mil I/O Expanders ROHS.

PCBKit's library has its KiCad symbol (Interface_Expansion:PCA9555D, from KiCad's library) and its footprint (Package_SO:SOIC-24W_7.5x15.4mm_P1.27mm, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C1542498). 31 open-source boards in 22 repositories on GitHub use it.

Symbol

INT1A12A23IO0_04IO0_15IO0_26IO0_37IO0_48IO0_59IO0_610IO0_711VSS12IO1_013IO1_114IO1_215IO1_316IO1_417IO1_518IO1_619IO1_720A021SCL22SDA23VDD24
Interface_Expansion:PCA9555DFrom KiCad's library

Footprint

123456789101112131415161718192021222324
Package_SO:SOIC-24W_7.5x15.4mm_P1.27mmFrom KiCad's library

Parameters

9
Clock Frequency
400kHz
Features
Reset function, Cascade and address expansion
Interface
I2C, SMBus
Interrupt Output
Interrupt Output
Number of I/O
16
Number of Supporting Devices
8
Operating Temperature
-40℃~+85℃
Quiescent Supply Current
250nA
Voltage - Supply
2.3V~5.5V

Order codes

2

Pinout

24
The pins of the PCA9555D
PinNameType
1INTOpen collector
2A1Input
3A2Input
4IO0_0Input/output
5IO0_1Input/output
6IO0_2Input/output
7IO0_3Input/output
8IO0_4Input/output
9IO0_5Input/output
10IO0_6Input/output
11IO0_7Input/output
12VSSPower in
13IO1_0Input/output
14IO1_1Input/output
15IO1_2Input/output
16IO1_3Input/output
17IO1_4Input/output
18IO1_5Input/output
19IO1_6Input/output
20IO1_7Input/output
21A0Input
22SCLInput
23SDAInput/output
24VDDPower in

Open-source boards using it

All 31
  • 4 layers80 × 80 mmZ5524, the printed circuit board in 3D

    Z5524

    brer-rabbit/zoxnoxious

    Analog synth / software interface

    234 parts68GPL-3.0
  • 2 layers155.9 × 91.9 mmPavu Mixer Prototype, the printed circuit board in 3D

    Pavu Mixer Prototype

    Rahix/pavu-mixer

    "Hardware Mixer" for PulseAudio

    81 parts25
  • 2 layers330 × 123 mmRiptide, the printed circuit board in 3D

    Riptide

    SharKingStudios/Riptide

    An Infinitely Expandable Keyboard built during Hackclub Highway!

    270 parts18MIT
  • 2 layers100 × 86.5 mmSensactHs, the printed circuit board in 3D

    SensactHs

    klaus-liebler/sensact

    Es gibt vier Namespaces für Nachrichten "REQUEST" und "RESPONSE", "EVENT" und "ACKNOWLEDGE". Dies wird mit den beiden LSB des Versions-Namespace-Bytes erklärt (Somit bleiben 64 Versionierungsmöglichkeiten) Alle vier…

    319 parts4Apache-2.0
  • 2 layers203 × 88 mmRICM pico, the printed circuit board in 3D

    RICM pico

    elatorre20/RICM_pico

    The software for a raspberry PIco-based kit board for a tic-tac-toe game. The board is mostly based on I2C devices, and will be simple to assemble so that we can use it in children's workshops.

    68 parts2GPL-3.0
  • 2 layers428.6 × 161.9 mmKeyboard mk1, the printed circuit board in 3D

    Keyboard mk1

    bobby1321/Colossus-Of-Codes

    Custom keyboard layout, called the Colossus of Codes (like Rhodes)

    280 parts1MIT
  • 2 layers342.9 × 95.2 mmNaicha68, the printed circuit board in 3D

    Naicha68

    laojoh/naicha68

    A keyboard dreamt up and put into solid design by @deltea and @laojoh.

    147 parts1MIT
  • 4 layers135 × 73.6 mmPuzzle1, the printed circuit board in 3D

    Puzzle1

    Dramenia/Puzzles

    Github for puzzles in the escape room of phantom vault

    38 parts

Show this part on your page

A live frame, for any web page
<iframe src="https://pcbkit.io/embed/parts/nxp/PCA9555D" title="PCA9555D 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/nxp/PCA9555D.jpg" alt="PCA9555D" width="1200" height="900">
A picture that opens the part, for a README
[![PCA9555D](https://pcbkit.io/embed/parts/nxp/PCA9555D.jpg?size=s)](https://pcbkit.io/parts/nxp/PCA9555D)

Questions

Is there a KiCad symbol and footprint for the PCA9555D?

Yes. The symbol is Interface_Expansion:PCA9555D and the footprint Package_SO:SOIC-24W_7.5x15.4mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the PCA9555D?

SO-24-300mil, with 24 pins. Its footprint is drawn on this page.

Where is the PCA9555D datasheet?

NXP Semiconductors publishes it: the Datasheet link on this page opens it.

Where can I order the PCA9555D?

JLCPCB lists it as part C1542498, with 0 in stock; the sellers' links on this page open their listings.

What can replace the PCA9555D?

Parts like it in the library: the PCF8575DW by Texas Instruments, the PCA9539DW by Texas Instruments, the PCA9555DW by Texas Instruments and the MAX7312AWG+ by Maxim Integrated (Analog Devices). Check their datasheets: a part that fits the footprint may still differ in its ratings.

Which open-source boards use the PCA9555D?

31 boards in 22 repositories on GitHub; the most starred are listed on this page, with their KiCad files.

Parts like it

8