Customer is interested in TCA9535 but requires glitch free operation when writing the output port with the same value or reading the state of the output port. Does the TCA9535 have glitch free outputs? If not, do you have another recommendation for an 8 - 16 port device.
Thanks,
Mark
Hey Mark,
Our GPIOs do not have glitch filters. The SCL/SDA lines do have a glitch filter of 50ns on them as per the I2C requirement. If the customer requires glitch free operation, they can always place a place a filter on the output with a ferrite bead or some capacitance (depending on what the glitch is).
Here's a short app note on high frequency glitch protection with a ferrite bead:
-Bobby
