B. Pullup resistors are not required on
both sides for Logic I/O.
C. If pullup or pulldown resistors are
needed, the resistor value must be over 50 kΩ.
D. 50 kΩ is a safe recommended value, if
the customer can accept higher VOL or lower VOH, smaller
pullup or pulldown resistor is allowed, the draft estimation is VOL =
VCCOUT × 4.5 k / (4.5 k + RPU) and VOH =
VCCOUT × RDW / (4.5 k + RDW).
E. If pull up resistors are needed,
please refer to the TXS0101 or contact TI.
F. For detailed information, please
refer to application note SCEA043.
Pin Functions
PIN
TYPE
DESCRIPTION
NO.
NAME
1
VCCA
—
A-port supply
voltage. 1.2 V ≤ VCCA ≤ 3.6 V and VCCA ≤
VCCB
2
GND
—
Ground
3
A
I/O
Input/output
A. Referenced to VCCA.
4
B
I/O
Input/output
B. Referenced to VCCB.
5
OE
I
3-state
output enable. Pull OE low to place all outputs in 3-state mode. Referenced to
VCCA.