Part Number: PCA9546A We are testing OSEPP I²C Expansion Shield, the board is powered by connect Pin3 of JP5 to 5V and pin4 of JP5 to GND. without connect to another devices, the pin15 of PCA9546 'SEN_SDA' is held low. Can you enlighten me what could be…
Part Number: PCA9546A Other Parts Discussed in Thread: TCA9543A Hi TIer,
Will you help to take a look on the schematic and let us know if you have any comments/concerns?
Thank you, Jason
Part Number: PCA9546A A few questions about reset:
The data sheet 8.4.1 states "The /RESET input must be connected to VCC through a pull-up resistor". I have a design where the /RESET line is driven from a TTL output from an MCU. The MCU a…
Part Number: PCA9546A Hi,
Good Day. What signal type (SCL, SDA, SC*, SD*) for these pins? Input, Output, Input/Output? I know that these pins are Input/Output signal type but the customer confuse on page 1, 13, 21 diagram on he datasheet when the arrow…
Part Number: PCA9546A Hi
I have choose the above part number but in datasheet I am unable to find TVSOP 16 pin recommended footprint. Kindly find the attachment for your ref.
https://www.ti.com/lit/ds/symlink/pca9546a.pdf?ts=1654673017523&ref_url=https…
Part Number: PCA9546A Hi TIer,
I downloaded the cad file for PCA9546A in RGV. As you can see below, the pin spacing is different between top/bottom and left/right. On the right is the CAD file generated for Allegro 17.2 from TI CAD site for this particular…
Part Number: PCA9546A Other Parts Discussed in Thread: PCA9548A i would like to learn the following info from I2C communication feature:
1) what is the most frequent failure mode incurred in I2C communication ?
2) what is the stress test to access the…
Part Number: PCA9546A The DGV mechanical drawings are missing from the datasheet. Should get that fixed in the datasheet, but also would like to confirm this package option is still recommended for new designs. Thank you.
Part Number: PCA9546A Hello,
We do not understand exactly how I2C slaves are addressed on the other side of the PCA9546A switch. We understand that you first address the control register on the I2C switch and then enable one or more slave channels. My…
Part Number: PCA9546A Dear Sirs:
There is one question about I2C mux application, would like to clarify that, on our product, applied for 2 cases situation, as below show situation1 & situation2.
For situation1, discovered symptom when try enable…