SN74ALS139 3 线路至 8 线路解码器/多路解复用器

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

SN74ALS139
Rating Catalog
Technology Family ALS
SN74ALS139 特性
SN74ALS139 芯片订购指南
器件 状态 温度 价格 封装 | 引脚 封装数量 | 封装载体 丝印标记
SN74ALS139D ACTIVE -40 to 85 0.21 | 1ku SOIC (D) | 16 40 | TUBE  
SN74ALS139DE4 ACTIVE -40 to 85 0.21 | 1ku SOIC (D) | 16 40 | TUBE  
SN74ALS139DG4 ACTIVE -40 to 85 0.21 | 1ku SOIC (D) | 16 40 | TUBE  
SN74ALS139DR ACTIVE -40 to 85 0.17 | 1ku SOIC (D) | 16 2500 | LARGE T&R  
SN74ALS139DRE4 ACTIVE -40 to 85 0.17 | 1ku SOIC (D) | 16 2500 | LARGE T&R  
SN74ALS139DRG4 ACTIVE -40 to 85 0.17 | 1ku SOIC (D) | 16 2500 | LARGE T&R  
SN74ALS139N ACTIVE -40 to 85 0.18 | 1ku PDIP (N) | 16 25 | TUBE  
SN74ALS139NE4 ACTIVE -40 to 85 0.18 | 1ku PDIP (N) | 16 25 | TUBE  
SN74ALS139 质量与无铅数据
器件 环保计划* 铅/焊球涂层 MSL 等级/回流焊峰 环保信息与无铅 (Pb-free) DPPM / MTBF / FIT 率
SN74ALS139D Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74ALS139D SN74ALS139D
SN74ALS139DE4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74ALS139DE4 SN74ALS139DE4
SN74ALS139DG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74ALS139DG4 SN74ALS139DG4
SN74ALS139DR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74ALS139DR SN74ALS139DR
SN74ALS139DRE4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74ALS139DRE4 SN74ALS139DRE4
SN74ALS139DRG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74ALS139DRG4 SN74ALS139DRG4
SN74ALS139N Pb-Free (RoHS)  CU NIPDAU  N/A for Pkg Type SN74ALS139N SN74ALS139N
SN74ALS139NE4 Pb-Free (RoHS)  CU NIPDAU  N/A for Pkg Type SN74ALS139NE4 SN74ALS139NE4
SN74ALS139 应用技术支持与电子电路设计开发资源下载
  1. SN74ALS139 数据资料 dataSheet 下载.PDF
  2. TI 德州仪器MSI 功能产品选型与价格 . xls
  3. Logic Guide 2009 (PDF 4263 KB)
  4. Shelf-Life Evaluation of Lead-Free Component Finishes (PDF 1305 KB)
  5. Understanding and Interpreting Standard-Logic Data Sheets (PDF 857 KB)
  6. TI IBIS File Creation, Validation, and Distribution Processes (PDF 380 KB)
  7. Implications of Slow or Floating CMOS Inputs (PDF 101 KB)
  8. CMOS Power Consumption and CPD Calculation (PDF 89 KB)
  9. Designing With Logic (PDF 186 KB)
  10. Live Insertion (PDF 150 KB)
  11. Input and Output Characteristics of Digital Integrated Circuits (PDF 1708 KB)
  12. Using High Speed CMOS and Advanced CMOS in Systems With Multiple Vcc (PDF 43 KB)
  13. HiRel Unitrode Power Management Brochure (PDF 206 KB)
  14. LOGIC Pocket Data Book (PDF 6001 KB)
  15. HiRel Unitrode Power Management Brochure (PDF 206 KB)
  16. Logic Cross-Reference (PDF 2938 KB)