Texas InstrumentsExtended
-40℃~+85℃ 10mA 16 1uA 2.3V~5.5V 25mA 400kHz 4V 8 I2C、SMBus Interrupt Output Push-Pull Reset function、Cascading and address extension、Built-in LED driver SSOP-24-208mil I/O Expanders ROHS
The PCA9555DB is an i, O Expander made by Texas Instruments in a SSOP-24-208mil package with 24 pins. -40℃~+85℃ 10mA 16 1uA 2.3V~5.5V 25mA 400kHz 4V 8 I2C、SMBus Interrupt Output Push-Pull Reset function、Cascading and address extension、Built-in LED driver SSOP-24-208mil I/O Expanders ROHS.
PCBKit's library has its KiCad symbol (Interface_Expansion:PCA9555DB, from KiCad's library) and its footprint (Package_SO:SSOP-24_5.3x8.2mm_P0.65mm, from KiCad's library), ready for a KiCad board. 183 are in stock at JLCPCB (part C45293). 2 open-source boards in 2 repositories on GitHub use it.
| Pin | Name | Type |
|---|---|---|
| 1 | INT | Open collector |
| 2 | A1 | Input |
| 3 | A2 | Input |
| 4 | IO0_0 | Input/output |
| 5 | IO0_1 | Input/output |
| 6 | IO0_2 | Input/output |
| 7 | IO0_3 | Input/output |
| 8 | IO0_4 | Input/output |
| 9 | IO0_5 | Input/output |
| 10 | IO0_6 | Input/output |
| 11 | IO0_7 | Input/output |
| 12 | VSS | Power in |
| 13 | IO1_0 | Input/output |
| 14 | IO1_1 | Input/output |
| 15 | IO1_2 | Input/output |
| 16 | IO1_3 | Input/output |
| 17 | IO1_4 | Input/output |
| 18 | IO1_5 | Input/output |
| 19 | IO1_6 | Input/output |
| 20 | IO1_7 | Input/output |
| 21 | A0 | Input |
| 22 | SCL | Input |
| 23 | SDA | Input/output |
| 24 | VDD | Power in |
oxidecomputer/hw-gimletlet
More full-featured breakout board for the STM32H7, including many expansion headers for daughter boards. In active use for Hubris development and as a Swiss Army Knife around the lab
Yes. The symbol is Interface_Expansion:PCA9555DB and the footprint Package_SO:SSOP-24_5.3x8.2mm_P0.65mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
SSOP-24-208mil, with 24 pins. Its footprint is drawn on this page.
Texas Instruments publishes it: the Datasheet link on this page opens it.
JLCPCB lists it as part C45293, with 183 in stock; the sellers' links on this page open their listings.
Parts like it in the library: the TCA9555DB by Texas Instruments, the TCA9535DB by Texas Instruments, the MAX7312AAG+T by Maxim Integrated (Analog Devices) and the MAX7318AAG+ by Maxim Integrated (Analog Devices). Check their datasheets: a part that fits the footprint may still differ in its ratings.
2 boards in 2 repositories on GitHub; the most starred are listed on this page, with their KiCad files.