SN74CBTLV3253DR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

SN74CBTLV3253DR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SN74CBTLV3253DR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

1• Functionally Equivalent to QS3253

• 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

• Video Broadcasting: IP-Based Multi-Format

Transcoders

• Video Communications Systems

3 Description

The SN74CBTLV3253 device is a dual 1-of-4 highspeed

FET multiplexer and demultiplexer. The low

ON-state resistance of the switch allows connections

to be made with minimal propagation delay.

The select (S0, S1) inputs control the data flow. The

FET multiplexers/demultiplexers are disabled when

the associated output-enable (OE) input is high.

The SN74CBTLV3253 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 device has isolation during power off.