SN74LVC138ARGYR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

SN74LVC138ARGYR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SN74LVC138ARGYR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• Operate From 1.65 V to 3.6 V

• Inputs Accept Voltages to 5.5 V

• Max tpd of 5.8 ns at 3.3 V

• Typical VOLP (Output Ground Bounce)

< 0.8 V at VCC = 3.3 V, TA = 25°C

• Typical VOHV (Output VOH Undershoot)

> 2 V at VCC = 3.3 V, TA = 25°C

• Latch-Up Performance Exceeds 250 mA Per

JESD 17

2 Applications

• LED Displays

• Servers

• White Goods

• Power Infrastructure

• Building Automation

• Factory Automation

3 Description

The SN74LVC138A devices are designed for highperformance

memory-decoding or data-routing

applications requiring very short propagation delay

times. In high-performance memory systems, these

decoders minimize the effects of system decoding.

When employed with high-speed memories using a

fast enable circuit, delay times of these decoders and

the enable time of the memory usually are less than

the typical access time of the memory. This means

that the effective system delay introduced by the

decoders is negligible.