Part Number: PCA9554A The datasheet shows the device operating Ambient temperature to be max upto 85°C, however there is no mention of maximum junction temperature. Looking to understand the amount of buffer available in thermal margin with respect to…
Part Number: PCA9554A Hi Team,
one of my customer has following question regards PCA9554A.
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In one of our new designs we are using the PCA9554ABRGVR as GPIO expander.
The IC always responds with a NACK.
We…
Part Number: TCA9554A Other Parts Discussed in Thread: PCA9554A , HI Sir
May I know TCA9554A could replace NXP's PCA9554A directly and doesn't need to modify the F/W
Is the difference about Vin range only ?
Thanks
Part Number: PCA9554A Other Parts Discussed in Thread: PCA9544A , , TCA9554A , TCA9544A Hi,
I'm designing with a PCA9544A and can't find a application diagram of bypass cap value. My VCC is 3.3V.
Could you recommend a cap value?
Regards,
James
Part Number: PCA9534A Other Parts Discussed in Thread: PCA9554A , TCA9534A , TCA9554A , TCA9534 Hello,
I am using 3x PCA9534A IO expanders and sometimes the device will hold the SDA line low at power up. All that is on the bus is a micro controller and 3x…
Part Number: LAUNCHXL-F28379D Other Parts Discussed in Thread: PCA9554A Hello,
I'm using LAUNCHXL_F28379D to control an IO expansion chip PCA9554A. I use GPIO104 and GPIO105 as SDA and SCL with 4.7kOhm pull-up resistors. However, I observed the following…
Hi Will,
We do not sell the QFN package of this device anymore. The QFN package for the PCA9544A is still on the web and you can find it here .
The two devices are exactly the same, the only difference is that the A version has a different address. It…
