1 Features
• AEC-Q100 qualified for automotive applications
• Fully configurable dual-rail design allows each port
to operate from 1.1 V to 5.5 V
• Robust, glitch-free power supply sequencing
• Up to 420-Mbps support for 3.3 V to 5.0 V
• Schmitt-trigger inputs allow for slow or noisy inputs
• I/O's with integrated dynamic pull-down resistors
help reduce external component count
• Control inputs with integrated static pull-down
resistors allow for floating control inputs
• High drive strength (up to 32 mA at 5 V)
• Low power consumption
– 3-μA maximum (25°C)
– 6-μA maximum (–40°C to 125°C)
• VCC isolation and VCC disconnect (Ioff-float) feature
– If either VCC supply is < 100 mV or
disconnected, all I/O's get pulled-down and
then become high-impedance
• Ioff supports partial-power-down mode operation
• Compatible with LVC family level shifters
• Control logic (DIR) are referenced to VCCA
• Operating temperature from –40°C to +125°C
• Latch-up performance exceeds 100 mA per JESD
78, class II
• ESD protection exceeds JESD 22
– 4000-V human-body model
– 1000-V charged-device model

2 Applications
• Eliminate slow or noisy input signals
• Driving indicator LEDs or Buzzers
• Debouncing a mechanical switch
• Infotainment head unit
• ADAS fusion

3 Description
The SN74LXC2T45-Q1 is a dual-bit, dual-supply
noninverting bidirectional voltage level translation
device. Ax pins and control pin (DIR) are referenced
to VCCA logic levels, and Bx pins are referenced to
VCCB logic levels. The A port is able to accept I/O
voltages ranging from 1.1 V to 5.5 V, while the B port
can accept I/O voltages from 1.1 V to 5.5 V. A high
on DIR allows data transmission from A to B and a
low on DIR allows data transmission from B to A.
See Device Functional Modes for a summary of the
operation of the control logic.