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
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?
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?
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?
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,