SN74LS74A 具有预设和清零功能的双路 D 类上升沿触发器

These devices contain two independent D-type positive-edge-triggered flip-flops. A low level at the preset or clear inputs sets or resets the outputs regardless of the levels of the other inputs. When preset and clear are inactive (high), data at the D input meeting the setup time requirements are transferred to the outputs on the positive-going edge of the clock pulse. Clock triggering occurs at a voltage level and is not directly related to the rise time of the clock pulse. Following the hold time interval, data at the D input may be changed without affecting the levels at the outputs.

The SN54' family is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74' family is characterized for operation from 0°C to 70°C

SN74LS74A
Voltage Nodes(V) 5
Rating Catalog
SN74LS74A 特性
SN74LS74A 芯片订购指南
器件 状态 温度 价格(美元) 封装 | 引脚 封装数量 | 封装载体 丝印标记
SN74LS74ADBLE OBSOLETE -40 to 85   SSOP (DB) | 14    
SN74LS74ADBR ACTIVE -40 to 85 0.40 | 1ku SSOP (DB) | 14 2000 | LARGE T&R  
SN74LS74ADBRG4 ACTIVE -40 to 85 0.40 | 1ku SSOP (DB) | 14 2000 | LARGE T&R  
SN74LS74ADW ACTIVE -40 to 85 0.43 | 1ku SOIC (D) | 14 25 | TUBE  
SN74LS74ADWE4 ACTIVE -40 to 85 0.43 | 1ku SOIC (D) | 14 25 | TUBE  
SN74LS74ADWG4 ACTIVE -40 to 85 0.43 | 1ku SOIC (D) | 14 25 | TUBE  
SN74LS74ADWR ACTIVE -40 to 85 0.36 | 1ku SOIC (D) | 14 2000 | LARGE T&R  
SN74LS74ADWRE4 ACTIVE -40 to 85 0.36 | 1ku SOIC (D) | 14 2000 | LARGE T&R  
SN74LS74ADWRG4 ACTIVE -40 to 85 0.36 | 1ku SOIC (D) | 14 2000 | LARGE T&R  
SN74LS74AN ACTIVE -40 to 85 0.40 | 1ku PDIP (N) | 14 20 | TUBE  
SN74LS74ANE4 ACTIVE -40 to 85 0.40 | 1ku PDIP (N) | 14 20 | TUBE  
SN74LS74ANSR ACTIVE -40 to 85 0.40 | 1ku SO (NS) | 14 2000 | LARGE T&R  
SN74LS74ANSRE4 ACTIVE -40 to 85 0.40 | 1ku SO (NS) | 14 2000 | LARGE T&R  
SN74LS74ANSRG4 ACTIVE -40 to 85 0.40 | 1ku SO (NS) | 14 2000 | LARGE T&R  
SN74LS74APW ACTIVE -40 to 85 0.43 | 1ku TSSOP (PW) | 14 70 | TUBE  
SN74LS74APWE4 ACTIVE -40 to 85 0.43 | 1ku TSSOP (PW) | 14 70 | TUBE  
SN74LS74APWG4 ACTIVE -40 to 85 0.43 | 1ku TSSOP (PW) | 14 70 | TUBE  
SN74LS74APWLE OBSOLETE -40 to 85   TSSOP (PW) | 14    
SN74LS74APWR ACTIVE -40 to 85 0.36 | 1ku TSSOP (PW) | 14 2000 | LARGE T&R  
SN74LS74APWRE4 ACTIVE -40 to 85 0.36 | 1ku TSSOP (PW) | 14 2000 | LARGE T&R  
SN74LS74APWRG4 ACTIVE -40 to 85 0.36 | 1ku TSSOP (PW) | 14 2000 | LARGE T&R  
SN74LS74A 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
SN74LS74ADBR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74LS74ADBR SN74LS74ADBR
SN74LS74ADBRG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74LS74ADBRG4 SN74LS74ADBRG4
SN74LS74ADW Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74LS74ADW SN74LS74ADW
SN74LS74ADWE4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74LS74ADWE4 SN74LS74ADWE4
SN74LS74ADWG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74LS74ADWG4 SN74LS74ADWG4
SN74LS74ADWR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74LS74ADWR SN74LS74ADWR
SN74LS74ADWRE4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74LS74ADWRE4 SN74LS74ADWRE4
SN74LS74ADWRG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74LS74ADWRG4 SN74LS74ADWRG4
SN74LS74AN Pb-Free (RoHS)  CU NIPDAU  N/A for Pkg Type SN74LS74AN SN74LS74AN
SN74LS74ANE4 Pb-Free (RoHS)  CU NIPDAU  N/A for Pkg Type SN74LS74ANE4 SN74LS74ANE4
SN74LS74ANSR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74LS74ANSR SN74LS74ANSR
SN74LS74ANSRE4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74LS74ANSRE4 SN74LS74ANSRE4
SN74LS74ANSRG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74LS74ANSRG4 SN74LS74ANSRG4
SN74LS74APW Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74LS74APW SN74LS74APW
SN74LS74APWE4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74LS74APWE4 SN74LS74APWE4
SN74LS74APWG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74LS74APWG4 SN74LS74APWG4
SN74LS74APWR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74LS74APWR SN74LS74APWR
SN74LS74APWRE4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74LS74APWRE4 SN74LS74APWRE4
SN74LS74APWRG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74LS74APWRG4 SN74LS74APWRG4
SN74LS74A 应用技术支持与电子电路设计开发资源下载
  1. SN74LS74A 数据资料 dataSheet 下载.PDF
  2. TI 德州仪器触发器/锁存器/寄存器产品选型与价格 . xls
  3. Shelf-Life Evaluation of Lead-Free Component Finishes (PDF 1305 KB)
  4. Understanding and Interpreting Standard-Logic Data Sheets (PDF 857 KB)
  5. TI IBIS File Creation, Validation, and Distribution Processes (PDF 380 KB)
  6. Implications of Slow or Floating CMOS Inputs (PDF 101 KB)
  7. CMOS Power Consumption and CPD Calculation (PDF 89 KB)
  8. Designing With Logic (PDF 186 KB)
  9. Live Insertion (PDF 150 KB)
  10. Input and Output Characteristics of Digital Integrated Circuits (PDF 1708 KB)
  11. Using High Speed CMOS and Advanced CMOS in Systems With Multiple Vcc (PDF 43 KB)
  12. HiRel Unitrode Power Management Brochure (PDF 206 KB)
  13. LOGIC Pocket Data Book (PDF 6001 KB)
  14. HiRel Unitrode Power Management Brochure (PDF 206 KB)
  15. Logic Cross-Reference (PDF 2938 KB)