Part Number: TCA9554A Other Parts Discussed in Thread: TCA9544A Hello Everyone,
We are using TCA9554A in a design and need to configure P0 as an input so that when it is pulled low INT changes. I have already been successful in programming TCA9554APWR…
Part Number: TCA9554A Other Parts Discussed in Thread: TCAL9538 Hi Expert,
My customer is looking for a P2P replacement of TCA9554A that has a higher operating temperature of -40 ~ 95 degree-C.
Please advise. Thanks
Regards,
Barton
Part Number: TCA9554A Other Parts Discussed in Thread: TCA9534A Hi team,
My customer would like to know what's different between TCA9554A and TCA9534A?
From simple comparison table, I can't judge their difference, so please advise.
Thanks
Part Number: TCA9554A Hi all,
I would like to ask you two questions.
1) Is it a schmitt-trigger Inputs like SNx4 Series of logic IC?
2) What is rise/fall time of I/O port? Is there limit value?
I'm going to connect input capacitor for noise…
Part Number: TCA9554A Hello Sir:
We have two pins will not use on our application.
We want to know how to configure port type on not use pins?
Please let us know your feedback.
Thanks a lot.
Part Number: TCA9554A Hi,
Good Day. I have a customer who is working with TCA9554ADBR. Please see below his query for your reference. Thank you very much.
If I power it on with 2.5V (connect VCC to 2.5V) but my I2C bus voltage is 5V, is that operationally…
Part Number: TCA9554A Other Parts Discussed in Thread: BQ35100 , Hi team,
My customer is doing EDVT testing in their project, they found the MCU I2C (EFR to I/O Expander ) communication timing can not meet the spec. See below pictures for details .…
Part Number: PCF8574A Other Parts Discussed in Thread: TCA9554A We use the subject PCF8574A I/O expander in the SOIC-16 package (DW suffix).
Since they're hard to find, is there a newer more common alternate?
The TCA9554A seems likely, but what is…
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…
