SN54ALS139_TI 双路 2 线路至 4 线路解码器/多路信号分离器

SN54ALS139的基本参数

制造厂商：TI
产品类别：逻辑和电压转换
技术类目：专用逻辑 IC - 数字多路信号分离器和解码器
功能描述：双路 2 线路至 4 线路解码器/多路信号分离器
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SN54ALS139的产品详情：

The ´ALS139 are dual 2-line to 4-line decoders/demultiplexers designed for use in high-performance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, these devices can minimize the effects of system decoding. When employed with high-speed memories utilizing a fast-enable circuit, the delay times of these decoders and the enable time of the memory are usually less than the typical access time of the memory. Therefore, the effective system delay introduced by the Schottky-clamped system decoder is negligible.

The ´ALS139 comprise two individual 2-line to 4-line decoders in a single package. The active-low enable (G\) input can be used as a data line in demultiplexing applications. These decoders/demultiplexers feature fully buffered inputs, each of which represents only one normalized load to its driving circuit. All inputs are clamped with high-performance Schottky diodes to suppress line ringing and simplify system design.

The SN54ALS139 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ALS139 is characterized for operation from 0°C to 70°C.

SN54ALS139的优势和特性：

Designed Specifically for High-Speed Memory Decoders and Data Transmission Systems
Incorporate Two Enable Inputs to Simplify Cascading and/or Data Reception
Package Options Include Plastic Small-Outline (D) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (N) and Ceramic (J) 300-mil DIPs

SN54ALS139的参数（英文）：

Technology Family
ALS
Number of channels (#)
2
Operating temperature range (C)
-55 to 125
Rating
Military
ICC (Max) (uA)
13000

SN54ALS139具体的完整产品型号参数及价格（美元）：

SN54ALS139的完整型号有：5962-87683012A、5962-8768301EA、SNJ54ALS139FK、SNJ54ALS139J，以下是这些产品的关键参数及官网采购报价：

5962-87683012A，工作温度：-55 to 125，封装：LCCC (FK)-20，包装数量MPQ：1个，MSL 等级/回流焊峰值温度：N/A for Pkg Type，引脚镀层/焊球材料：SNPB，TI官网5962-87683012A的批量USD价格：24.818（1000+）

5962-8768301EA，工作温度：-55 to 125，封装：CDIP (J)-16，包装数量MPQ：1个，MSL 等级/回流焊峰值温度：N/A for Pkg Type，引脚镀层/焊球材料：SNPB，TI官网5962-8768301EA的批量USD价格：8.38（1000+）

SNJ54ALS139FK，工作温度：-55 to 125，封装：LCCC (FK)-20，包装数量MPQ：1个，MSL 等级/回流焊峰值温度：N/A for Pkg Type，引脚镀层/焊球材料：SNPB，TI官网SNJ54ALS139FK的批量USD价格：24.818（1000+）

SNJ54ALS139J，工作温度：-55 to 125，封装：CDIP (J)-16，包装数量MPQ：1个，MSL 等级/回流焊峰值温度：N/A for Pkg Type，引脚镀层/焊球材料：SNPB，TI官网SNJ54ALS139J的批量USD价格：8.38（1000+）

SN54ALS139的评估套件：

SN54ALS139的电路图解：

SN54ALS139的评估套件：