Part Number: TCA9539-Q1 Other Parts Discussed in Thread: TCA9539 Tool/software: Dear team,
If all ports of TCA9539 are set to output mode, then the INT pin has no meaning. Can the INT pin be left unconnected? Thanks!
Regards,
Mingkang
Part Number: TCA9539-Q1 Other Parts Discussed in Thread: TCA9539 Tool/software: Hi team,
Do we have Linux driver for TCA9539-Q1 can share with customer? Or do we have reference code which can help customer implement in Linux driver?
Thanks!
Ethan We…
Part Number: TCA9539-Q1 Tool/software: HI TI,
How should we deal with unused pin of TCA9539-Q1? What is the reset state of these pin? Can we just left it float?
BR
Junsong Gu
Part Number: TCA9539-Q1 Tool/software: How much current of TCA9539-Q1 VCC? How to understand 160mA? In 6.5 and 6.9 chapter, ICC is not over 1mA, is in uA level, my question is, when calculate power current, which current is right?
Part Number: TCA9539-Q1 Tool/software: Hi, Support Team
if TCA9539-Q1 is failure and cannot offer ON/OFF(GPIO) to output, how to make sure the ic do not false action ? do we have internal prevention mechanism.
if any suggestion, Please advise me.
Thanks…
Part Number: TCA9539-Q1
Tool/software:
Hi, Support Team
our client use TCA9539-Q1 have two question as blow:
Q1: about I/O expander port to port switching the maximum rate?
Q2: Could possible fine tune I2C can effect switching port rate?
because its…
Part Number: TCA9539-Q1
Hi, Support Team
we saw the TCA9539-Q1 functional safety FIT Rate, FMD and Pin FMA document:
TCA9539-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA (Rev. A)
as below table, the Ambient temperature condition…
Part Number: TCA9539-Q1 Hi team,
Customer is evaluating TCA9539-Q1 and found the output freq is abnormal and highly dependent on pull up resistor, as below, would you pls share if the possible reason?
When I2C configure to 400kHz
1. I2C pull up 4.64k…
Part Number: TCA9539-Q1 Other Parts Discussed in Thread: TCA9539 Tool/software: Hi TI
I test TCA9539QPWRQ1 in my design，and I test INT is always low，in your datasheet shows when trigger a ACK，INT will be turn high，is there any dependency condition？
How…
Part Number: TCA9539-Q1 Other Parts Discussed in Thread: TCA9539 , Hi, TI engineers,
We connected tca9539 to i2c0 of tda4ve, and there is still a device max96722 on the bus that can be detected normally, but 9539 has not been detected on the bus. We have…
