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 Hi TI experts,
Customer plan to change TCA1116PWR to TCA1116RTWR because of lead time.
Is there any difference besides the package?
If we change the PCB package, can direct replace TCA1116PWR to TCA1116RTWR ?
Please check it.
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 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 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 Hi team
My customer need some help:
We use TI-TCA9539 as I2C to GPIO expander solution. The description says TCA9539 will generate an interrupt output to main chip whenever an input port changes state. Does it mean any inputs ( from…