SN74AS298A 具有存储器的四路 2 输入 多路复用器

The SN74AS298A is a quadruple 2-input multiplexer with storage that provides essentially the equivalent functional capabilities of two separate MSI functions (SN74AS157 and ´AS175A) in a 16-pin package.

When the word-select (WS) input is low, word 1 (A1, B1, C1, D1) is applied to the flip-flops. A high input to WS causes the selection of word 2 (A2, B2, C2, D2). The selected word is clocked to the output terminals on the negative-going edge of the clock pulse.

The SN74AS298A is characterized for operation from 0°C to 70°C. 

a1, a2, etc. = the level of steady-state input at A1, A2, etc.
QA0, QB0, etc. = the level of QA, QB, etc. entered on the most recent transition of CLK

SN74AS298A
Rating Catalog  
Technology Family AS  
SN74AS298A 特性
SN74AS298A 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
SN74AS298AD ACTIVE 0 to 70 0.95 | 1ku SOIC (D) | 16 40 | TUBE  
SN74AS298ADE4 ACTIVE 0 to 70 0.95 | 1ku SOIC (D) | 16 40 | TUBE  
SN74AS298ADG4 ACTIVE 0 to 70 0.95 | 1ku SOIC (D) | 16 40 | TUBE  
SN74AS298ADR ACTIVE 0 to 70 0.80 | 1ku SOIC (D) | 16 2500 | LARGE T&R  
SN74AS298ADRE4 ACTIVE 0 to 70 0.80 | 1ku SOIC (D) | 16 2500 | LARGE T&R  
SN74AS298ADRG4 ACTIVE 0 to 70 0.80 | 1ku SOIC (D) | 16 2500 | LARGE T&R  
SN74AS298AN ACTIVE 0 to 70 0.90 | 1ku PDIP (N) | 16 25 | TUBE  
SN74AS298ANE4 ACTIVE 0 to 70 0.90 | 1ku PDIP (N) | 16 25 | TUBE  
SN74AS298A 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
SN74AS298AD Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74AS298AD SN74AS298AD
SN74AS298ADE4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74AS298ADE4 SN74AS298ADE4
SN74AS298ADG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74AS298ADG4 SN74AS298ADG4
SN74AS298ADR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74AS298ADR SN74AS298ADR
SN74AS298ADRE4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74AS298ADRE4 SN74AS298ADRE4
SN74AS298ADRG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74AS298ADRG4 SN74AS298ADRG4
SN74AS298AN Pb-Free (RoHS)  CU NIPDAU  N/A for Pkg Type SN74AS298AN SN74AS298AN
SN74AS298ANE4 Pb-Free (RoHS)  CU NIPDAU  N/A for Pkg Type SN74AS298ANE4 SN74AS298ANE4
SN74AS298A 应用技术支持与电子电路设计开发资源下载
  1. SN74AS298A 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)