Part Number:TXS0108E
hi.
I use to TSX0108E level Shifter.
VCCA = 3.3V A side connected for FPGA.
VCCB = 5V B side connected for some communication chip.(i can't tell you the name of chip. sorry)
the problem is coming from B side.
B side connected signal state default is High. it is a Clk signal 4.8kHz.
I want this signal to operate from 5 v to 0 v, operating at 5 v to 2.5v.
Sometimes, at the beginning of the low descent, it behaves like 0v, but again, it behaves as if it were 2.5v.
like this.
What I suspect is the falling time of the signal.The falling time is approximately 250 ns.
The current phenomenon is solved by using the 51k Pull-Down Resistance, but I wonder if it is reliable.