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CD74HC251 具有三态输出的高速 CMOS 逻辑 8 输入多路复用器

The ’HC251 and ’HCT251 are 8-channel digital multiplexers with three-state outputs, fabricated with high-speed silicon-gate CMOS technology. Together with the low power consumption of standard CMOS integrated circuits, they possess the ability to drive 10 LSTTL loads. The three-state feature makes them ideally suited for interfacing with bus lines in a bus-oriented system.

This multiplexer features both true (Y) and complement (Y\) outputs as well as an output enable (OE\) input. The OE\ must be at a low logic level to enable this device. When the OE\ input is high, both outputs are in the high-impedance state. When enabled, address information on the data select inputs determines which data input is routed to the Y and Y\ outputs

CD74HC251
Rating Catalog
Technology Family HC
CD74HC251 特性
CD74HC251 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
CD74HC251E ACTIVE -55 to 125 0.39 | 1ku PDIP (N) | 16 25 | TUBE  
CD74HC251EE4 ACTIVE -55 to 125 0.39 | 1ku PDIP (N) | 16 25 | TUBE  
CD74HC251M ACTIVE -55 to 125 0.42 | 1ku SOIC (D) | 16 40 | TUBE  
CD74HC251M96 ACTIVE -55 to 125 0.35 | 1ku SOIC (D) | 16 2500 | LARGE T&R  
CD74HC251M96E4 ACTIVE -55 to 125 0.35 | 1ku SOIC (D) | 16 2500 | LARGE T&R  
CD74HC251M96G4 ACTIVE -55 to 125 0.35 | 1ku SOIC (D) | 16 2500 | LARGE T&R  
CD74HC251ME4 ACTIVE -55 to 125 0.42 | 1ku SOIC (D) | 16 40 | TUBE  
CD74HC251MG4 ACTIVE -55 to 125 0.42 | 1ku SOIC (D) | 16 40 | TUBE  
CD74HC251 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
CD74HC251E Pb-Free (RoHS) CU NIPDAU N/A for Pkg Type CD74HC251E CD74HC251E
CD74HC251EE4 Pb-Free (RoHS) CU NIPDAU N/A for Pkg Type CD74HC251EE4 CD74HC251EE4
CD74HC251M Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM CD74HC251M CD74HC251M
CD74HC251M96 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM CD74HC251M96 CD74HC251M96
CD74HC251M96E4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM CD74HC251M96E4 CD74HC251M96E4
CD74HC251M96G4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM CD74HC251M96G4 CD74HC251M96G4
CD74HC251ME4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM CD74HC251ME4 CD74HC251ME4
CD74HC251MG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM CD74HC251MG4 CD74HC251MG4
CD74HC251 应用技术支持与电子电路设计开发资源下载
  1. CD74HC251 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)