SN54HC139 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

SN54HC139
Rating Military  
Technology Family HC
SN54HC139 特性
SN54HC139 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
SNJ54HC139FK ACTIVE -55 to 125 11.77 | 1ku LCCC (FK) | 20 1 | TUBE  
SNJ54HC139J ACTIVE -55 to 125 2.49 | 1ku CDIP (J) | 16 1 | TUBE  
SNJ54HC139W ACTIVE -55 to 125 12.36 | 1ku CFP (W) | 16 1 | TUBE  
SN54HC139 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
SNJ54HC139FK TBD  POST-PLATE  N/A for Pkg Type SNJ54HC139FK SNJ54HC139FK
SNJ54HC139J TBD  A42   N/A for Pkg Type SNJ54HC139J SNJ54HC139J
SNJ54HC139W TBD  A42   N/A for Pkg Type SNJ54HC139W SNJ54HC139W
SN54HC139 应用技术支持与电子电路设计开发资源下载
  1. SN54HC139 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)