Part Number: TCA9539-Q1 Other Parts Discussed in Thread: TCA9539 hi experts
as we know that TCA9539-Q1 is Auto grade with 16 channels.
do we have more channels IC for Auto application or plan for it?
Part Number: TCA9539-Q1 Hi Expert,
Assuming TCA9539-Q1 is just powered on and the I2C is not established yet, all I/O is default as input. If there is rising or falling edge on the port, will TCA9539-Q1 generate low signal on INT pin? Thanks
BR,
Elec…
Part Number: TCA9539-Q1 Hi Expert,
Our customer has a new request. They need a I2C I/O expander with 5V supply. Do we have related auto device? Thanks.
BR,
Elec Cheng
Part Number: TCA9539-Q1 Other Parts Discussed in Thread: TCA9539 Hello team,
I receive a question from the customer.
They say that sometimes there is no ACK at the yellow line timing when the following conditions are present. Do you know the cause?
1.…
Part Number: TCA9539-Q1 Hi team,
There are 2 questions about TCA9539-Q1:
Whether a reset is needed after VCC is on
Before manipulating IIC read and write, do I have to pull up reset , and then pull down reset again?
Part Number: TCA9539-Q1 Hi,
are there any differences in the programming registers between the TCA9555 and the TCA9539?
I know that there are differences in the internal pull-up, in the reset pin, in the address I2C, but I don't know if there is some…
Part Number: TCA9539-Q1 Other Parts Discussed in Thread: TCA9539 Hi, anybody
I tested tca9539-Q1.
I read datasheet of tca9539.
So, I understand the slave address this ic 0x74 / (A1, A0 is LOW, 1110100)
and to use it only read function, 0xE9 (1110100…
Part Number: TCA9539-Q1 Hi expert,
I checked from datasheet, when I/O=input and no load, Iq as below. My question is that if I/O=output and the output level is low or high voltage, I/O connects to NMOS Gate pin. What is the Iq in this condition?
Does…
Part Number: TCA9539-Q1 Other Parts Discussed in Thread: TCA9539 , Dear Expert,
I want to know when the TCA9539's I2C is disrupted, the GPIO will remain output level or reset to the power-on state?
Thanks!
Part Number: TCA9539-Q1 Dear team,
Due to SOC's power on sequence, we give 3.3V signal to 9539's input port before powering on 9539. Will this affect the normal operation of our chip?
Thanks & Best Regards,
Sherry