
Overview
The PCA9506BS is an i, O Expander made by NXP Semiconductors in a HVQFN-56(8x8) package with 57 pins. Reset function、Cascading and address extension、Built-in LED driver HVQFN-56(8x8) I/O Expanders ROHS.
PCBKit's library has its KiCad symbol (Interface_Expansion:PCA9506BS, from KiCad's library) and its footprint (Package_DFN_QFN:QFN-56-1EP_8x8mm_P0.5mm_EP4.3x4.3mm, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C5203534). 4 open-source boards in 4 repositories on GitHub use it.
Symbol
Footprint
Parameters
8- Clock Frequency
- 100kHz;400kHz
- Current - Output Low(IOL)
- 15mA
- Features
- Built-in LED driver;Reset function;Cascading and address extension
- Interface
- I2C
- Interrupt Output
- Interrupt Output
- Number of Supporting Devices
- 8
- Operating Temperature
- -40℃~+85℃
- Voltage - Supply
- 2.3V~5.5V
Order codes
1- PCA9506BS,118LCSC C5203534
Pinout
57| Pin | Name | Type |
|---|---|---|
| 1 | IO0_4 | Input/output |
| 2 | IO0_5 | Input/output |
| 3 | IO0_6 | Input/output |
| 4 | V_{SS} | Power in |
| 5 | IO0_7 | Input/output |
| 6 | IO1_0 | Input/output |
| 7 | IO1_1 | Input/output |
| 8 | IO1_2 | Input/output |
| 9 | IO1_3 | Input/output |
| 10 | IO1_4 | Input/output |
| 11 | V_{DD} | Power in |
| 12 | IO1_5 | Input/output |
| 13 | IO1_6 | Input/output |
| 14 | IO1_7 | Input/output |
| 15 | IO2_0 | Input/output |
| 16 | V_{SS} | Passive |
| 17 | IO2_1 | Input/output |
| 18 | IO2_2 | Input/output |
| 19 | IO2_3 | Input/output |
| 20 | A0 | Input |
| 21 | A1 | Input |
| 22 | A2 | Input |
| 23 | OE | Input |
| 24 | IO2_4 | Input/output |
| 25 | IO2_5 | Input/output |
| 26 | IO2_6 | Input/output |
| 27 | V_{SS} | Passive |
| 28 | IO2_7 | Input/output |
| 29 | IO3_0 | Input/output |
| 30 | IO3_1 | Input/output |
| 31 | IO3_2 | Input/output |
| 32 | V_{SS} | Passive |
| 33 | IO3_3 | Input/output |
| 34 | IO3_4 | Input/output |
| 35 | IO3_5 | Input/output |
| 36 | IO3_6 | Input/output |
| 37 | IO3_7 | Input/output |
| 38 | IO4_0 | Input/output |
| 39 | V_{DD} | Passive |
| 40 | IO4_1 | Input/output |
| 41 | IO4_2 | Input/output |
| 42 | IO4_3 | Input/output |
| 43 | IO4_4 | Input/output |
| 44 | V_{SS} | Passive |
| 45 | IO4_5 | Input/output |
| 46 | IO4_6 | Input/output |
| 47 | IO4_7 | Input/output |
| 48 | INT | Open collector |
| 49 | RESET | Input |
| 50 | SDA | Input/output |
| 51 | SCL | Input |
| 52 | IO0_0 | Input/output |
| 53 | IO0_1 | Input/output |
| 54 | IO0_2 | Input/output |
| 55 | V_{SS} | Passive |
| 56 | IO0_3 | Input/output |
| 57 | V_{SS} | Passive |
Open-source boards using it
All 4- 2 layers27 × 60 mm

- 2 layers389.2 × 209.8 mm

Keyboard
DinosaurPotato534/chocolate-keyboard
I chose the name "Chocolate" as a joke based upon one of my friends keyboards, "Cacao".
220 parts - 2 layers352.5 × 133.1 mm

- 4 layers

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Is there a KiCad symbol and footprint for the PCA9506BS?
Yes. The symbol is Interface_Expansion:PCA9506BS and the footprint Package_DFN_QFN:QFN-56-1EP_8x8mm_P0.5mm_EP4.3x4.3mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the PCA9506BS?
HVQFN-56(8x8), with 57 pins. Its footprint is drawn on this page.
Where can I order the PCA9506BS?
JLCPCB lists it as part C5203534, with 0 in stock; the sellers' links on this page open their listings.
Which open-source boards use the PCA9506BS?
4 boards in 4 repositories on GitHub; the most starred are listed on this page, with their KiCad files.