SN74LS139A 双路 2 线路至 4 线路解码器/多路解复用器

These Schottky-clamped TTL MSI circuits are designed to be used in high-performance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, these decoders can be used to 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. This means that the effective system delay introduced by the Schottky-clamped system decoder is negligible.

The circuit comprises two individual two-line to four-line decoders in a single package. The active-low enable input can be used as a data line in demultiplexing applications

SN74LS139A
Rating Catalog
Technology Family LS
SN74LS139A 特性
SN74LS139A 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
SN74LS139AD ACTIVE -40 to 85 0.21 | 1ku SOIC (D) | 16 40 | TUBE  
SN74LS139ADE4 ACTIVE -40 to 85 0.21 | 1ku SOIC (D) | 16 40 | TUBE  
SN74LS139ADG4 ACTIVE -40 to 85 0.21 | 1ku SOIC (D) | 16 40 | TUBE  
SN74LS139ADR ACTIVE -40 to 85 0.17 | 1ku SOIC (D) | 16 2500 | LARGE T&R  
SN74LS139ADRE4 ACTIVE -40 to 85 0.17 | 1ku SOIC (D) | 16 2500 | LARGE T&R  
SN74LS139ADRG4 ACTIVE -40 to 85 0.17 | 1ku SOIC (D) | 16 2500 | LARGE T&R  
SN74LS139AN ACTIVE -40 to 85 0.18 | 1ku PDIP (N) | 16 25 | TUBE  
SN74LS139ANE4 ACTIVE -40 to 85 0.18 | 1ku PDIP (N) | 16 25 | TUBE  
SN74LS139A 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
SN74LS139AD Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74LS139AD SN74LS139AD
SN74LS139ADE4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74LS139ADE4 SN74LS139ADE4
SN74LS139ADG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74LS139ADG4 SN74LS139ADG4
SN74LS139ADR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74LS139ADR SN74LS139ADR
SN74LS139ADRE4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74LS139ADRE4 SN74LS139ADRE4
SN74LS139ADRG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74LS139ADRG4 SN74LS139ADRG4
SN74LS139AN Pb-Free (RoHS)  CU NIPDAU  N/A for Pkg Type SN74LS139AN SN74LS139AN
SN74LS139ANE4 Pb-Free (RoHS)  CU NIPDAU  N/A for Pkg Type SN74LS139ANE4 SN74LS139ANE4
SN74LS139A 应用技术支持与电子电路设计开发资源下载
  1. SN74LS139A 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)