Part Number: TCA9554A Other Parts Discussed in Thread: TCA6507 Dear sir,
We'd like to utilize TCA9554A to light on LED and is blinking with a fixed period.
If LED is turn on/off with 500Hz/500Hz, can we deliver once command and then TCA9554A will…
Part Number: TCA9554A Hi,
1. We have interrupt signal of 256us from BMS IC (default the signal will be high when interrupt occurs it will send 256us low pulse) to TCA9554A.
Could we able to detect this signal and please provide information on the…
Part Number: TCA9554A Other Parts Discussed in Thread: TCA9554 hi team,
I want to use 1pcs TCA9554 or TCA9554A to expand GPIO，these GPIO will connect to some signal of Optical module which will be hot insert into our board.
So I want to know does…
Part Number: TCA9554A Hi team,
Could you advise is the tvd(data) Valid data time unit is correct or not? I think it should be us , not ns .
Please advise.
Thanks
Part Number: TCA9554A Other Parts Discussed in Thread: PCF8574 HI expert,
Can TCA9554A update output ports in case of continues data writing of I2C?
- Start bit
- Slave address
- Register address
- Write Data (Output setting 1)
- Write Data…
Part Number: TCA9554A Other Parts Discussed in Thread: TCA9554 , PCA9554 , PCA9554A , Is there Linux Driver of the TCA9554 for customer development tools (AM3352xx)? Thanks.
Regards
Brian
Hi Molly,
There may be an issue with the I2C communication that is needed to properly configure these registers. Can you please capture the SDA and SCL waveforms when you are writing the 0x00 value and when you are reading back the 0xFF value afterwards…
Part Number: TCA9554A Hi
if i wanna set gpio output High -L ow -High -Low , like a 50% PWM waveform
what is the maximum frequency I can acieve
my master I2C is 1MHz
