

Overview
The PCA9505DGG is an i, O Expander made by NXP Semiconductors in a TSSOP-56-6.1mm package with 56 pins. -40℃~+85℃ 10mA 15mA 1uA 2.3V~5.5V 40 400kHz 8 I2C Interrupt Output Push-Pull Reset function、Cascading and address extension、Built-in LED driver TSSOP-56-6.1mm I/O Expanders ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:PCA9506DGG,518, from EasyEDA) and its footprint (Package_SO:TSSOP-56_6.1x14mm_P0.5mm, from KiCad's library), ready for a KiCad board. 2,295 are in stock at JLCPCB (part C2669685). 1 open-source board in 1 repository on GitHub use it.
Symbol
Footprint
Parameters
12- Clock Frequency
- 400kHz
- Current - Output High(IOH)
- 10mA
- Current - Output Low(IOL)
- 15mA
- Features
- Cascade and address expansion
- Interface
- I2C
- Interrupt Output
- Interrupt Output
- Number of I/O
- 40
- Number of Supporting Devices
- 8
- Operating Temperature
- -40℃~+85℃
- Output Type
- Push-Pull
- Quiescent Supply Current
- 1uA
- Voltage - Supply
- 2.3V~5.5V
Order codes
1- PCA9505DGG,118LCSC C2669685
Pinout
56| Pin | Name | Type |
|---|---|---|
| 1 | SDA | Unspecified |
| 2 | SCL | Unspecified |
| 3 | IO0_0 | Unspecified |
| 4 | IO0_1 | Unspecified |
| 5 | IO0_2 | Unspecified |
| 6 | VSS | Unspecified |
| 7 | IO0_3 | Unspecified |
| 8 | IO0_4 | Unspecified |
| 9 | IO0_5 | Unspecified |
| 10 | IO0_6 | Unspecified |
| 11 | VSS | Unspecified |
| 12 | IO0_7 | Unspecified |
| 13 | IO1_0 | Unspecified |
| 14 | IO1_1 | Unspecified |
| 15 | IO1_2 | Unspecified |
| 16 | IO1_3 | Unspecified |
| 17 | IO1_4 | Unspecified |
| 18 | VDD | Unspecified |
| 19 | IO1_5 | Unspecified |
| 20 | IO1_6 | Unspecified |
| 21 | IO1_7 | Unspecified |
| 22 | IO2_0 | Unspecified |
| 23 | VSS | Unspecified |
| 24 | IO2_1 | Unspecified |
| 25 | IO2_2 | Unspecified |
| 26 | IO2_3 | Unspecified |
| 27 | A0 | Unspecified |
| 28 | A1 | Unspecified |
| 29 | A2 | Unspecified |
| 30 | OE# | Unspecified |
| 31 | IO2_4 | Unspecified |
| 32 | IO2_5 | Unspecified |
| 33 | IO2_6 | Unspecified |
| 34 | VSS | Unspecified |
| 35 | IO2_7 | Unspecified |
| 36 | IO3_0 | Unspecified |
| 37 | IO3_1 | Unspecified |
| 38 | IO3_2 | Unspecified |
| 39 | VSS | Unspecified |
| 40 | IO3_3 | Unspecified |
| 41 | IO3_4 | Unspecified |
| 42 | IO3_5 | Unspecified |
| 43 | IO3_6 | Unspecified |
| 44 | IO3_7 | Unspecified |
| 45 | IO4_0 | Unspecified |
| 46 | VDD | Unspecified |
| 47 | IO4_1 | Unspecified |
| 48 | IO4_2 | Unspecified |
| 49 | IO4_3 | Unspecified |
| 50 | IO4_4 | Unspecified |
| 51 | VSS | Unspecified |
| 52 | IO4_5 | Unspecified |
| 53 | IO4_6 | Unspecified |
| 54 | IO4_7 | Unspecified |
| 55 | INT# | Unspecified |
| 56 | RESET# | Unspecified |
Open-source boards using it
All 1- 2 layers124.5 × 99.1 mm

Show this part on your page
<iframe src="https://pcbkit.io/embed/parts/nxp/PCA9505DGG" title="PCA9505DGG in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/nxp/PCA9505DGG.jpg" alt="PCA9505DGG" width="1200" height="900">[](https://pcbkit.io/parts/nxp/PCA9505DGG)Questions
Is there a KiCad symbol and footprint for the PCA9505DGG?
Yes. The symbol is EasyEDA_Cloud:PCA9506DGG,518 and the footprint Package_SO:TSSOP-56_6.1x14mm_P0.5mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the PCA9505DGG?
TSSOP-56-6.1mm, with 56 pins. Its footprint is drawn on this page.
Where is the PCA9505DGG datasheet?
NXP Semiconductors publishes it: the Datasheet link on this page opens it.
Where can I order the PCA9505DGG?
JLCPCB lists it as part C2669685, with 2,295 in stock; the sellers' links on this page open their listings.
What can replace the PCA9505DGG?
Parts like it in the library: the PCA9506DGG by NXP Semiconductors, 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.
Which open-source boards use the PCA9505DGG?
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
8PCA9506DGG
TSSOP-56-6.1mm-40℃~+85℃ 2.3V~5.5V 40 400kHz I2C Interrupt Output Reset function、Cascading and address extension、Built-in LED driver TSSOP-56-6.1mm I/O Expanders ROHSNXP SemiconductorsI/O ExpandersPCA9555PW
TSSOP-24-40℃~+85℃ 1.1uA 16 2.3V~5.5V 3mA 400kHz 8 I2C、SMBus Interrupt Output Reset function、Cascade and address expansion TSSOP-24 I/O Expanders ROHSNXP SemiconductorsI/O ExpandersAW9523BTQR
TQFN-24-EP(4x4)-40℃~+85℃ 100nA 16 2.4V~5.5V 20mA 4 400kHz 60mV I2C Interrupt Output Push-Pull、Open-drain Reset function、Cascading and address extension、Input anti-jitter、Built-in LED driver、IO level configurable TQFN-24-EP(4x4) I/O Expanders ROHSAWINICI/O ExpandersTCA6416ARTWR
WQFN-24-EP(4x4)-40℃~+85℃ 1.65V~5.5V 10mA 16 2 200mV 25mA 3uA 4.1V 400kHz I2C、SMBus Interrupt Output Push-Pull Reset function、Cascading and address extension、Built-in LED driver、IO level configurable WQFN-24-EP(4x4) I/O Expanders ROHSTexas InstrumentsI/O ExpandersTCA9535PW
TSSOP-24-40℃~+85℃ 1.5uA 1.65V~5.5V 10mA 16 25mA 400kHz 4V 8 I2C、SMBus Interrupt Output Push-Pull Reset function、Cascade and address expansion、Built-in LED driver TSSOP-24 I/O Expanders ROHSTexas InstrumentsI/O ExpandersTCA9555PW
TSSOP-24-40℃~+85℃ 1.65V~5.5V 10mA 16 25mA 3.5uA 400kHz 4V 500mV 8 I2C、SMBus Interrupt Output Push-Pull Reset function、Cascading and address extension、Built-in LED driver TSSOP-24 I/O Expanders ROHSTexas InstrumentsI/O ExpandersTCA6424ARGJR
VQFN-32-EP(5x5)-40℃~+85℃ 1.65V~5.5V 10mA 1uA 2 230mV 24 25mA 4.1V 400kHz I2C、SMBus Interrupt Output Push-Pull Reset function、Cascading and address extension、Built-in LED driver、IO level configurable VQFN-32-EP(5x5) I/O Expanders ROHSTexas InstrumentsI/O ExpandersPCA9539PW
TSSOP-24-40℃~+85℃ 16 1uA 2.3V~5.5V 4 400kHz I2C、SMBus Interrupt Output Reset function、Cascading and address extension TSSOP-24 I/O Expanders ROHSNXP SemiconductorsI/O Expanders