SN74CBTLV3126PW集成电路（IC）的信号开关多路复用器解码器规格书PDF中文资料

SN74CBTLV3126PW属于集成电路（IC）的信号开关多路复用器解码器。由美国德州仪器公司制造生产的SN74CBTLV3126PW信号开关，多路复用器，解码器逻辑型信号开关、多路复用器和编码器 IC 可用于对以数字格式表示数据的电信号进行路由和选择。这些器件与设计用于模拟信号的类似产品有所不同，它们保留的信息表示为两个电状态之一，而不是两个外部界限内的无穷变化量。

1 Features

• Standard 126-type pinout

• 5-Ω switch connection between two ports

• Rail-to-rail switching on data I/O ports

• Ioff supports partial-power-down mode operation

• Latch-up performance exceeds 100 mA per JESD

78, Class II

2 Applications

• Datacenter and enterprise computing

• Broadband fixed line access

• Building automation

• Wired networking

• Motor drives

3 Description

The SN74CBTLV3126 quadruple FET bus switch

features independent line switches. Each switch is

disabled when the associated output-enable (OE)

input is low.

This device is fully specified for partial-power-down

applications using Ioff. The Ioff feature ensures that

damaging current will not backflow through the device

when it is powered down. The SN74CBTLV3126

device has isolation during power off.

To ensure the high-impedance state during power up

or power down, OE should be tied to GND through a

pull down resistor; the minimum value of the resistor

is determined by the current-sinking capability of the

driver.