SN74LXC2T45集成電路（IC）的轉(zhuǎn)換器電平移位器規(guī)格書(shū)PDF中文資料

1 Features

? 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 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.