Part Number: TCA9539-Q1 Hi, Support Team
We will use TCA9539-Q1 as below chart: have any concern?
if any suggestion, Please advise me.
Thanks,
Best regards,
Lawrence
Part Number: TCA9539-Q1 Hi,TI team:
From the datasheet, when P00–P07 and P10–P17 use as input ,the voltage tolerance of P00–P07 and P10–P17 are 5.5V,am I right?
Can I use like this: the VCC is 1.8V, the P00–P07 and P10–P17…
Part Number: TCA9539-Q1 Hi, Support Team
about INT pin could we only pull high and we dont connect to MCU? have any concern?
if any suggestion, Please advise me.
Thanks,
Best regards,
Lawrence
Part Number: TCA9539-Q1 Other Parts Discussed in Thread: TCA9539 Hello team,
My customer test TCA9539-Q1, but found that there is noise at SDA pin which is in cycle.
Noise's cycle 24us, keep 340ns, max voltage can reach 2.3V, the appearing time is near…
Part Number: TCA9539 Other Parts Discussed in Thread: TCA6416A I have been trying to configure your TCA9539, but it is always NACKing back on the first byte(addressing). I am including a screen capture.
Bus Speed 400kHz
VCC - 3.3V
A0/A1 both are pulled…
Part Number: TCA9539-Q1 Other Parts Discussed in Thread: TCA9539 , TCAL9539 Hi TI,
For TC9539-Q1, What is the frequency of the Internal Read Pulse, and what is the minmum pulse width of I/O port to ensure signal flip can be sampled?
BR
junsong
Part Number: TCA9539 MARS Controller Front Panel.zip
Hi,
I need a design verification for the I/O expander part to be used for controlling LED segments of alphanumerical display. The schematic is herewith attached. The I2C bus is pulled up with 4.7K…
Part Number: TCA9539 Hello,
I'm trying to generate PWM switching signals on the GPIOS to operate GATE Driver MOSFETs to operate a motor, but the output frequency was too low.
Only TCA9539 is present on the i2c bus and at any given time only 29bits…
Part Number: TCA9539-Q1 Other Parts Discussed in Thread: TCA9539 HI TI,
Could you help confirm the Port state of group 0&1 ? its shirt to ground or high impedence?
BR
junsong