Part Number: PCA9536 hello,I am new in I2c protocol . I am using PCA9536 i2c expander as a slave in my project. My goal is to read the slave address( i.e.,0x41) .I was tested with arduino board it works well. But i am tested with nrf52 dk it does not…
Part Number: PCA9536 My customer would like an i2c I/O expander with a reset function so they can ensure the device will be in a known state. They are looking at the PCA9537 from NXP. We do not have a direct cross. Do we have any I/O expanders with this…
Part Number: PCA9536
A silly quick question, can someone help me confirm that this is Pin #1? The package doesn't match that shown in the datasheet , just wanted to confirm before using!
Part Number: PCA9536 Hi,
P0-3 has an internal pull-up resistor of 100 kΩ.
P0-3 goes High at startup.(Before register setting)
I want to set the P0-3 output to Low at startup using pull-down resistor.
What is the minimum value of the pull-down resistor…
Part Number: PCA9536 Other Parts Discussed in Thread: TCA9534A Hi,
I am using PCA9536 in my design. I see that the device behavior is not constant. Every time I power up the behavior is different. Sometimes it works fine and sometimes it pulls the line…
Thank you Eric. It appears then, I have the updated/correct part installed. Good news/bad news situation.
Sure. I'm not seeing the I2C signals on either of the two outputs on the device.
A snippet of the design is shown below. I2C_SCL/SDA signals…
Other Parts Discussed in Thread: PCA9536 , TCA9536 Hello I2C Experts
if the PCA9536 is powered at eg. nominal Vdd = 3V and the Vdd then drops below 2.3V ( Vdd min in dada sheet ) but stays above POR voltage and then goes back to 3V..
What will happen then…
Hi OL,
Checking the PCA9536 datasheet 0x41 is the correct slave address to use. It may be a hardware related issue, that's the first thing that comes to mind.
Can you confirm proper circuitry and connections for the PCA9536 device? Feel free to share…
Other Parts Discussed in Thread: PCA9536
I would like to use PCA9536 to keep Output mode for our application in C5515.
Please provide Init code example code and output mode example code.
Thanks.
Best Regards,
Other Parts Discussed in Thread: PCA9536 I have a question about the Iq for the PCA9536. It lists two modes for standby (see below). I'm not sure whether Vi is the I2C port or the I/O port. I can't imagine why the output port being low would cause the…