Part Number: PCA9538 Tool/software: Hi team,
Wanted to clarify what the default output is on reset? I see this on the datasheet and want to make sure this is the right thing to look at:
Additionally, is it possible to get rid of the 1M pulldowns…
Part Number: PCA9538 Other Parts Discussed in Thread: TCA9538 Will there be any leakage current from SDA/SCL external pull up 5.25V to VCC =3.3V.
Datasheet of TCA9538 mentions absolute maximum Vin to be 6V but it also recommend s V_ih max = Vcc in there…
Part Number: PCA9538 Hi Team,
In datahseet, PCA9538 have operation mode and standby mode.
Does we need a specificed I2C command to make PCA9538 entered standby mode? If not, could you help to confirm when will PCA9538 enter standby mode.
In datasheet…
Part Number: PCA9538 Other Parts Discussed in Thread: TCA9538 We are seeing a relatively small temperature around 50C where the PCA9538 device does not initialize to the proper reset default register values. In this design, the RESET is tied high to 3…
Part Number: PCA9538 Hi Team,
In the Datasheet of the device "PCA9538", page 6, top table. In the last row of the table where it says "Cb", the units are "ns" where it should be "pF". Am I right?
www.ti.com/.../pca9538.pdf
Beat Regards, Tom Liu
Part Number: PCA9538
Hi team,
Customer has a question about RESET PIN connect to VCC through a pullup resistor.
Their RESET PIN connect to VCC through a pullup resistor.
When power on, do they need to add a capacitor on the pull-up resistor to…
Part Number: PCA9538 Hi all,
A question about PCA9538 INT behavior below,
1. Our GPIO P0-7 are all LOW in standby mode. (by external HW logic) so the default input value is "0000 0000" 2. when power on , P0-7 is 1111 1100. (P0-P5 is Pull high by external…
Part Number: PCA9538
Using PCA9538, I constructed the circuit as follows, but I have some questions. 1. In the datasheet, the default value of Register 1 is 0xFF, The default value of Register 3 was 0xFF. However, when reading with I2C…
