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SN74LS273 具有清零功能的八路 D 类触发器

These monolithic, positive-edge-triggered flip-flops utilize TTL circuitry to implement D-type flip-flop logic with a direct clear input.

Information at the D inputs meeting the setup time requirements is transferred to the Q outputs on the positive-going edge of the clock pulse. Clock triggering occurs at a particular voltage level and is not directly related to the transition time of the positive-going pulse. When the clock input is at either the high or low level, the D input signal has no effect at the output.

These flip-flops are guaranteed to respond to clock frequencies ranging form 0 to 30 megahertz while maximum clock frequency is typically 40 megahertz. Typical power dissipation is 39 milliwatts per flip-flop for the '273 and 10 milliwatts for the 'LS273

SN74LS273
Voltage Nodes(V) 5
Rating Catalog
SN74LS273 特性
SN74LS273 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
SN74LS273DBLE OBSOLETE -40 to 85 SSOP (DB) | 20  
SN74LS273DBR ACTIVE -40 to 85 0.40 | 1ku SSOP (DB) | 20 2000 | LARGE T&R  
SN74LS273DBRG4 ACTIVE -40 to 85 0.40 | 1ku SSOP (DB) | 20 2000 | LARGE T&R  
SN74LS273DW ACTIVE -40 to 85 0.43 | 1ku SOIC (DW) | 20 25 | TUBE  
SN74LS273DWE4 ACTIVE -40 to 85 0.43 | 1ku SOIC (DW) | 20 25 | TUBE  
SN74LS273DWG4 ACTIVE -40 to 85 0.43 | 1ku SOIC (DW) | 20 25 | TUBE  
SN74LS273DWR ACTIVE -40 to 85 0.36 | 1ku SOIC (DW) | 20 2000 | LARGE T&R  
SN74LS273DWRE4 ACTIVE -40 to 85 0.36 | 1ku SOIC (DW) | 20 2000 | LARGE T&R  
SN74LS273DWRG4 ACTIVE -40 to 85 0.36 | 1ku SOIC (DW) | 20 2000 | LARGE T&R  
SN74LS273N ACTIVE -40 to 85 0.40 | 1ku PDIP (N) | 20 20 | TUBE  
SN74LS273NE4 ACTIVE -40 to 85 0.40 | 1ku PDIP (N) | 20 20 | TUBE  
SN74LS273NSR ACTIVE -40 to 85 0.40 | 1ku SO (NS) | 20 2000 | LARGE T&R  
SN74LS273NSRE4 ACTIVE -40 to 85 0.40 | 1ku SO (NS) | 20 2000 | LARGE T&R  
SN74LS273NSRG4 ACTIVE -40 to 85 0.40 | 1ku SO (NS) | 20 2000 | LARGE T&R  
SN74LS273PW ACTIVE -40 to 85 0.43 | 1ku TSSOP (PW) | 20 70 | TUBE  
SN74LS273PWE4 ACTIVE -40 to 85 0.43 | 1ku TSSOP (PW) | 20 70 | TUBE  
SN74LS273PWG4 ACTIVE -40 to 85 0.43 | 1ku TSSOP (PW) | 20 70 | TUBE  
SN74LS273PWLE OBSOLETE -40 to 85 TSSOP (PW) | 20  
SN74LS273PWR ACTIVE -40 to 85 0.36 | 1ku TSSOP (PW) | 20 2000 | LARGE T&R  
SN74LS273PWRE4 ACTIVE -40 to 85 0.36 | 1ku TSSOP (PW) | 20 2000 | LARGE T&R  
SN74LS273PWRG4 ACTIVE -40 to 85 0.36 | 1ku TSSOP (PW) | 20 2000 | LARGE T&R  
SN74LS273 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
SN74LS273DBR Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LS273DBR SN74LS273DBR
SN74LS273DBRG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LS273DBRG4 SN74LS273DBRG4
SN74LS273DW Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LS273DW SN74LS273DW
SN74LS273DWE4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LS273DWE4 SN74LS273DWE4
SN74LS273DWG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LS273DWG4 SN74LS273DWG4
SN74LS273DWR Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LS273DWR SN74LS273DWR
SN74LS273DWRE4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LS273DWRE4 SN74LS273DWRE4
SN74LS273DWRG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LS273DWRG4 SN74LS273DWRG4
SN74LS273N Pb-Free (RoHS) CU NIPDAU N/A for Pkg Type SN74LS273N SN74LS273N
SN74LS273NE4 Pb-Free (RoHS) CU NIPDAU N/A for Pkg Type SN74LS273NE4 SN74LS273NE4
SN74LS273NSR Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LS273NSR SN74LS273NSR
SN74LS273NSRE4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LS273NSRE4 SN74LS273NSRE4
SN74LS273NSRG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LS273NSRG4 SN74LS273NSRG4
SN74LS273PW Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LS273PW SN74LS273PW
SN74LS273PWE4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LS273PWE4 SN74LS273PWE4
SN74LS273PWG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LS273PWG4 SN74LS273PWG4
SN74LS273PWR Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LS273PWR SN74LS273PWR
SN74LS273PWRE4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LS273PWRE4 SN74LS273PWRE4
SN74LS273PWRG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LS273PWRG4 SN74LS273PWRG4
SN74LS273 应用技术支持与电子电路设计开发资源下载
  1. SN74LS273 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)