Is SN74CB3T3257PWR a fully bi-directional switch?
Is the switch electrical behavior identical on both directions, A ports to B ports and B ports to A ports?
I am asking this because I performed the following test:
I placed 3V supply at pin 1A and 300ohm resistor to GND at pin 1B1 and I measured the voltage drop from 1A to 1B1, the result was 100mV
I placed 3V supply at pin 2B1 and 300ohm resistor to GND at pin 2A and I measured the voltage drop from 2B1 to 2A, the result was 1.2V
Note: I am using SN74CB3T3257PWR with Vcc=3.3V and OE=0V
Can you please explain the reason for the high voltage drop from pin 2B1 to pin 2A?
Thanks in advance