SN74LVC1G139DCTR屬于集成電路（IC）的信號(hào)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SN74LVC1G139DCTR信號(hào)開關(guān)，多路復(fù)用器，解碼器邏輯型信號(hào)開關(guān)、多路復(fù)用器和編碼器 IC 可用于對(duì)以數(shù)字格式表示數(shù)據(jù)的電信號(hào)進(jìn)行路由和選擇。這些器件與設(shè)計(jì)用于模擬信號(hào)的類似產(chǎn)品有所不同，它們保留的信息表示為兩個(gè)電狀態(tài)之一，而不是兩個(gè)外部界限內(nèi)的無窮變化量。

1 Features

1? Available in the Texas Instruments

NanoStar? and NanoFree? Packages

? Supports 5-V VCC Operation

? Inputs Accept Voltages to 5.5 V

? Supports Down Translation to VCC

? Maximum tpd of 4.9 ns at 3.3 V and 15 pF

? Low Power Consumption, 10-μA Maximum ICC

? ±24-mA Output Drive at 3.3 V

? Ioff Supports Live Insertion, Partial-Power-Down

Mode, and Back-Drive Protection

? Latch-Up Performance Exceeds 100 mA Per

JESD 78, Class II

? ESD Protection Exceeds JESD22

– 2000-V Human-Body Model (A114-A)

– 200-V Machine Model (A115-A)

– 1000-V Charged-Device Model (C101)

2 Applications

? AV Receivers

? Solid State Drives (SSDs): Client and Enterprise

? TVs: LCD, Digital, and High-Definition (HD)

? Tablets: Enterprise

? Video Analytics: Server

3 Description

This SN74LVC1G139 2-to-4 line decoder is designed

for 1.65-V to 5.5-V VCC operation.

The SN74LVC1G139 2-line to 4-line decoder is

designed to be used in high-performance memorydecoding

or data-routing applications requiring very

short propagation delay times. In high-performance

memory systems, this decoder can be used to

minimize the effects of system decoding. When used

with high-speed memories using a fast enable circuit,

the 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 decoder is

negligible.

NanoStar and NanoFree package technology is a

major breakthrough in device packaging concepts,

using the die as the package.

This device is fully specified for partial-power-down

applications using Ioff. The Ioff circuitry disables the

outputs, preventing damaging current backflow

through the device when it is powered down.