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SN74HCT139 双路 2 线路至 4 线路解码器/多路解复用器

The ’HCT139 devices are designed for high-performance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, these decoders can minimize the effects of system decoding. When employed with high-speed memories utilizing a fast enable circuit, the delay time 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.

The ’HCT139 devices 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

SN74HCT139
Rating Catalog
Technology Family HCT
SN74HCT139 特性
SN74HCT139 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
SN74HCT139D ACTIVE -40 to 85 0.21 | 1ku SOIC (D) | 16 40 | TUBE  
SN74HCT139DE4 ACTIVE -40 to 85 0.21 | 1ku SOIC (D) | 16 40 | TUBE  
SN74HCT139DG4 ACTIVE -40 to 85 0.21 | 1ku SOIC (D) | 16 40 | TUBE  
SN74HCT139DR ACTIVE -40 to 85 0.17 | 1ku SOIC (D) | 16 2500 | LARGE T&R  
SN74HCT139DRE4 ACTIVE -40 to 85 0.17 | 1ku SOIC (D) | 16 2500 | LARGE T&R  
SN74HCT139DRG4 ACTIVE -40 to 85 0.17 | 1ku SOIC (D) | 16 2500 | LARGE T&R  
SN74HCT139N ACTIVE -40 to 85 0.18 | 1ku PDIP (N) | 16 25 | TUBE  
SN74HCT139NE4 ACTIVE -40 to 85 0.18 | 1ku PDIP (N) | 16 25 | TUBE  
SN74HCT139 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
SN74HCT139D Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74HCT139D SN74HCT139D
SN74HCT139DE4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74HCT139DE4 SN74HCT139DE4
SN74HCT139DG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74HCT139DG4 SN74HCT139DG4
SN74HCT139DR Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74HCT139DR SN74HCT139DR
SN74HCT139DRE4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74HCT139DRE4 SN74HCT139DRE4
SN74HCT139DRG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74HCT139DRG4 SN74HCT139DRG4
SN74HCT139N Pb-Free (RoHS) CU NIPDAU N/A for Pkg Type SN74HCT139N SN74HCT139N
SN74HCT139NE4 Pb-Free (RoHS) CU NIPDAU N/A for Pkg Type SN74HCT139NE4 SN74HCT139NE4
SN74HCT139 应用技术支持与电子电路设计开发资源下载
  1. SN74HCT139 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)