2 layers304.8 × 125.7 mm
Keyboard cherry mx pcb mounted
SijWoo/custom-keyboard
Holds the electronic pcb files and src code for my custom keyboard
218 parts2
PCA9546AD
Texas InstrumentsExtended
-40℃~+85℃ 2.3V~5.5V I2C、SMBus SOIC-16 Interface - Specialized ROHS
- Part id
- ti/PCA9546AD
- Category
- Interface, Specialized
- Package
- SOIC-16
- Pins
- 16
- In stock
- 82 at JLCPCB (C2674051)
- Used on
- 4 open-source boards
Overview
The PCA9546AD is an interface, Specialized made by Texas Instruments in a SOIC-16 package with 16 pins. -40℃~+85℃ 2.3V~5.5V I2C、SMBus SOIC-16 Interface - Specialized ROHS.
PCBKit's library has its KiCad symbol (pimoroni:PCA9546A, from Eagle libraries) and its footprint (Package_SO:SOIC-16_3.9x9.9mm_P1.27mm, from KiCad's library), ready for a KiCad board. 82 are in stock at JLCPCB (part C2674051). 4 open-source boards in 4 repositories on GitHub use it.
Symbol
Footprint
Pinout
16| Pin | Name | Type |
|---|---|---|
| 1 | A0 | Unspecified |
| 2 | A1 | Unspecified |
| 3 | RESET | Unspecified |
| 4 | SD0 | Unspecified |
| 5 | SC0 | Unspecified |
| 6 | SD1 | Unspecified |
| 7 | SC1 | Unspecified |
| 8 | VSS | Unspecified |
| 9 | SD2 | Unspecified |
| 10 | SC2 | Unspecified |
| 11 | SD3 | Unspecified |
| 12 | SC3 | Unspecified |
| 13 | A2 | Unspecified |
| 14 | SCL | Unspecified |
| 15 | SDA | Unspecified |
| 16 | VDD | Unspecified |
Open-source boards using it
4- 4 layers90 × 90.1 mm
HaptiCAD base
EmielV2002/HaptiCAD
A PC peripheral based on the smartknob project by scottbez1.
108 parts1Apache-2.0 - 2 layers39.3 × 33.6 mm
HeliSR Rev4.0
genbean/UH1-Collective
A small board for hat Rev 4 in the Huey head Rev 5 (Head/Rev5/Hat). It carries an ALPS RKJXM1015004 8-direction stick switch with a centre push, and screws to four bosses printed on the back of the lower panel.
33 partsGPL-3.0 - 4 layers56 × 65.6 mm
Main pcb 2025
matthieuvigne/MiAM_robotics
Generic repo for robotic projects with the former MiAM Eurobot team !
71 parts5GPL-3.0
Parts like it
8
LMH0024MAX
SOIC-16-40℃~+85℃ 3.3V 540Mbps 60mA SOIC-16 Interface - Specialized ROHSTexas InstrumentsInterface - SpecializedAD807-155BR
SOIC-16-40℃~+85℃ 155Mbps 4.5V~5.5V SOIC-16 Interface - SpecializedAnalog DevicesInterface - SpecializedRE46C190S16TF
SOIC-16-10℃~+60℃ 2V~5V Non-volatile configuration storage SOIC-16 Interface - Specialized ROHSMicrochip TechnologyInterface - SpecializedSI2400-FS
SOIC-16SOIC-16 Interface - Specialized ROHSSilicon LabsInterface - SpecializedSI2434-D-FSR
SOIC-16SOIC-16 Interface - Specialized ROHSSilicon LabsInterface - SpecializedST8034ATDT
SOP-16-25℃~+85℃ SOP-16 Interface - Specialized ROHSSTMicroelectronicsInterface - SpecializedPCA9546ADW
SOIC-16SOIC-16 Interface - Specialized ROHSTexas InstrumentsInterface - SpecializedPT2260-R4S
SOP-16SOP-16 Interface - Specialized ROHSPTCInterface - Specialized
Questions
Is there a KiCad symbol and footprint for the PCA9546AD?
Yes. The symbol is pimoroni:PCA9546A and the footprint Package_SO:SOIC-16_3.9x9.9mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the PCA9546AD?
SOIC-16, with 16 pins. Its footprint is drawn on this page.
Where is the PCA9546AD datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the PCA9546AD?
JLCPCB lists it as part C2674051, with 82 in stock; the sellers' links on this page open their listings.
What can replace the PCA9546AD?
Parts like it in the library: the LMH0024MAX by Texas Instruments, the AD807-155BR by Analog Devices, the RE46C190S16TF by Microchip Technology and the SI2400-FS by Silicon Labs. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the PCA9546AD?
4 boards in 4 repositories on GitHub; the most starred are listed on this page, with their KiCad files.