SN74HC139 双路 2 线路至 4 线路解码器/多路解复用器

The ’HC139 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 ’HC139 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

SN74HC139
Rating Catalog
Technology Family HC
SN74HC139 特性
SN74HC139 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
SN74HC139D ACTIVE -40 to 85 0.21 | 1ku SOIC (D) | 16 40 | TUBE  
SN74HC139DE4 ACTIVE -40 to 85 0.21 | 1ku SOIC (D) | 16 40 | TUBE  
SN74HC139DG4 ACTIVE -40 to 85 0.21 | 1ku SOIC (D) | 16 40 | TUBE  
SN74HC139DR ACTIVE -40 to 85 0.17 | 1ku SOIC (D) | 16 2500 | LARGE T&R  
SN74HC139DRE4 ACTIVE -40 to 85 0.17 | 1ku SOIC (D) | 16 2500 | LARGE T&R  
SN74HC139DRG4 ACTIVE -40 to 85 0.17 | 1ku SOIC (D) | 16 2500 | LARGE T&R  
SN74HC139N ACTIVE -40 to 85 0.18 | 1ku PDIP (N) | 16 25 | TUBE  
SN74HC139NE4 ACTIVE -40 to 85 0.18 | 1ku PDIP (N) | 16 25 | TUBE  
SN74HC139 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
SN74HC139D Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74HC139D SN74HC139D
SN74HC139DE4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74HC139DE4 SN74HC139DE4
SN74HC139DG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74HC139DG4 SN74HC139DG4
SN74HC139DR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74HC139DR SN74HC139DR
SN74HC139DRE4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74HC139DRE4 SN74HC139DRE4
SN74HC139DRG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74HC139DRG4 SN74HC139DRG4
SN74HC139N Pb-Free (RoHS)  CU NIPDAU  N/A for Pkg Type SN74HC139N SN74HC139N
SN74HC139NE4 Pb-Free (RoHS)  CU NIPDAU  N/A for Pkg Type SN74HC139NE4 SN74HC139NE4
SN74HC139 应用技术支持与电子电路设计开发资源下载
  1. SN74HC139 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)