74ACT11139屬于集成電路（IC）的信號開關(guān)多路復(fù)用器解碼器。由美國德州儀器公司制造生產(chǎn)的74ACT11139信號開關(guān)，多路復(fù)用器，解碼器邏輯型信號開關(guān)、多路復(fù)用器和編碼器 IC 可用于對以數(shù)字格式表示數(shù)據(jù)的電信號進(jìn)行路由和選擇。這些器件與設(shè)計(jì)用于模擬信號的類似產(chǎn)品有所不同，它們保留的信息表示為兩個電狀態(tài)之一，而不是兩個外部界限內(nèi)的無窮變化量。

Inputs Are TTL-Voltage Compatible

Designed Specifically for High-Speed

Memory Decoders and Data Transmission

Systems

Incorporates Two Enable Inputs to Simplify

Cascading and/or Data Reception

Fully Synchronous Operation for Counting

Center-Pin VCC and GND Configurations

Minimize High-Speed Switching Noise

EPIC ? (Enhanced-Performance Implanted

CMOS) 1-μm Process

500-mA Typical Latch-Up Immunity at

125°C

Package Options Include Plastic

Small-Outline (D) and Thin Shrink

Small-Outline (PW) Packages, and

Standard Plastic 300-mil DIPs (N)

description

The 74ACT11139 is designed for use in high-performance memory-decoding or data-routing applications that

require very short propagation delay times. In high-performance memory systems, this decoder is used to

minimize the effects of system decoding.

The 74ACT11139 is composed of two individual 2-line to 4-line decoders in a single package. The active-low

enables (1G or 2G) can be used as data lines in demultiplexing applications. This decoder/demultiplexer

features fully buffered inputs, each of which represents only one normalized load to its driving circuit.

The 74ACT11139 is characterized for operation from ?40°C to 85°C.