12 layers180 × 150 mm
Marble
BerkeleyLab/Marble
Dual FMC FPGA carrier board developed for general purpose use in particle accelerator electronics instrumentation.
1,006 parts35
PCAL9555AHF
NXP SemiconductorsExtended
复位功能、级联与地址扩展、内置LED驱动 HWQFN-24-EP(4x4) I/O Expanders ROHS
- Part id
- nxp/PCAL9555AHF
- Category
- I, O Expanders
- Package
- HWQFN-24-EP(4x4)
- Pins
- 25
- In stock
- 388 at JLCPCB (C2669647)
- Used on
- 4 open-source boards
Overview
The PCAL9555AHF is an i, O Expander made by NXP Semiconductors in a HWQFN-24-EP(4x4) package with 25 pins. 复位功能、级联与地址扩展、内置LED驱动 HWQFN-24-EP(4x4) I/O Expanders ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:PCAL9535AHF,128, from EasyEDA) and its footprint (EasyEDA_Cloud:HWQFN-24_L4.0-W4.0-P0.50-TL-EP2.2, from EasyEDA), ready for a KiCad board. 388 are in stock at JLCPCB (part C2669647). 4 open-source boards in 3 repositories on GitHub use it.
Symbol
Footprint
Pinout
25| Pin | Name | Type |
|---|---|---|
| 1 | P0_0 | Unspecified |
| 2 | P0_1 | Unspecified |
| 3 | P0_2 | Unspecified |
| 4 | P0_3 | Unspecified |
| 5 | P0_4 | Unspecified |
| 6 | P0_5 | Unspecified |
| 7 | P0_6 | Unspecified |
| 8 | P0_7 | Unspecified |
| 9 | VSS | Unspecified |
| 10 | P1_0 | Unspecified |
| 11 | P1_1 | Unspecified |
| 12 | P1_2 | Unspecified |
| 13 | P1_3 | Unspecified |
| 14 | P1_4 | Unspecified |
| 15 | P1_5 | Unspecified |
| 16 | P1_6 | Unspecified |
| 17 | P1_7 | Unspecified |
| 18 | A0 | Unspecified |
| 19 | SCL | Unspecified |
| 20 | SDA | Unspecified |
| 21 | VDD | Unspecified |
| 22 | INT# | Unspecified |
| 23 | A1 | Unspecified |
| 24 | A2 | Unspecified |
| 25 | EP | Unspecified |
Open-source boards using it
4- 2 layers166.2 × 152.4 mm
Beeper
shirriff/beepomatic
Circuit boards to beep out the backplane in the Apollo update test box
16 parts4 - 2 layers181.7 × 171.5 mm
- 2 layers182 × 171.9 mm
Parts like it
8
PCA9535CHF
HWQFN-24-EP(4x4)-40℃~+85℃ 10mA 16 1uA 2.3V~5.5V 400kHz 400mV 8 I2C、SMBus Interrupt Output Open-drain Reset function、Cascading and address extension HWQFN-24-EP(4x4) I/O Expanders ROHSNXP SemiconductorsI/O Expanders
PCA9555PW
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 Expanders
AW9523BTQR
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 Expanders
TCA6416ARTWR
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 Expanders
TCA6424ARGJR
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
Questions
Is there a KiCad symbol and footprint for the PCAL9555AHF?
Yes. The symbol is EasyEDA_Cloud:PCAL9535AHF,128 and the footprint EasyEDA_Cloud:HWQFN-24_L4.0-W4.0-P0.50-TL-EP2.2, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the PCAL9555AHF?
HWQFN-24-EP(4x4), with 25 pins. Its footprint is drawn on this page.
Where is the PCAL9555AHF datasheet?
NXP Semiconductors publishes it: the Datasheet link on this page opens it.
Where can I order the PCAL9555AHF?
JLCPCB lists it as part C2669647, with 388 in stock; the sellers' links on this page open their listings.
What can replace the PCAL9555AHF?
Parts like it in the library: the PCA9535CHF 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 PCAL9555AHF?
4 boards in 3 repositories on GitHub; the most starred are listed on this page, with their KiCad files.