CD74HC123 具有复位功能的高速 CMOS 逻辑双路可重触发单稳多频振荡器

The ’HC123, ’HCT123, CD74HC423 and CD74HCT423 are dual monostable multivibrators with resets. They are all retriggerable and differ only in that the 123 types can be triggered by a negative to positive reset pulse; whereas the 423 types do not have this feature. An external resistor (RX) and an external capacitor (CX) control the timing and the accuracy for the circuit. Adjustment of Rx and CX provides a wide range of output pulse widths from the Q and Q\ terminals. Pulse triggering on the A\ and B inputs occur at a particular voltage level and is not related to the rise and fall times of the trigger pulses.

Once triggered, the output pulse width may be extended by retriggering inputs A\ and B. The output pulse can be terminated by a LOW level on the Reset (R) pin

CD74HC123
Voltage Nodes(V) 2, 4.5, 6  
Rating Catalog  
Technology Family HC  
CD74HC123 特性
CD74HC123 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
CD74HC123E ACTIVE -55 to 125 0.29 | 1ku PDIP (N) | 16 25 | TUBE  
CD74HC123EE4 ACTIVE -55 to 125 0.29 | 1ku PDIP (N) | 16 25 | TUBE  
CD74HC123M ACTIVE -55 to 125 0.32 | 1ku SOIC (D) | 16 40 | TUBE  
CD74HC123M96 ACTIVE -55 to 125 0.26 | 1ku SOIC (D) | 16 2500 | LARGE T&R  
CD74HC123M96E4 ACTIVE -55 to 125 0.26 | 1ku SOIC (D) | 16 2500 | LARGE T&R  
CD74HC123M96G4 ACTIVE -55 to 125 0.26 | 1ku SOIC (D) | 16 2500 | LARGE T&R  
CD74HC123ME4 ACTIVE -55 to 125 0.32 | 1ku SOIC (D) | 16 40 | TUBE  
CD74HC123MG4 ACTIVE -55 to 125 0.32 | 1ku SOIC (D) | 16 40 | TUBE  
CD74HC123MT ACTIVE -55 to 125 0.26 | 1ku SOIC (D) | 16 250 | SMALL T&R  
CD74HC123MTE4 ACTIVE -55 to 125 0.26 | 1ku SOIC (D) | 16 250 | SMALL T&R  
CD74HC123MTG4 ACTIVE -55 to 125 0.26 | 1ku SOIC (D) | 16 250 | SMALL T&R  
CD74HC123NSR ACTIVE -55 to 125 0.29 | 1ku SO (NS) | 16 2000 | LARGE T&R  
CD74HC123NSRE4 ACTIVE -55 to 125 0.29 | 1ku SO (NS) | 16 2000 | LARGE T&R  
CD74HC123NSRG4 ACTIVE -55 to 125 0.29 | 1ku SO (NS) | 16 2000 | LARGE T&R  
CD74HC123PW ACTIVE -55 to 125 0.32 | 1ku TSSOP (PW) | 16 90 | TUBE  
CD74HC123PWE4 ACTIVE -55 to 125 0.32 | 1ku TSSOP (PW) | 16 90 | TUBE  
CD74HC123PWG4 ACTIVE -55 to 125 0.32 | 1ku TSSOP (PW) | 16 90 | TUBE  
CD74HC123PWR ACTIVE -55 to 125 0.26 | 1ku TSSOP (PW) | 16 2000 | LARGE T&R  
CD74HC123PWRE4 ACTIVE -55 to 125 0.26 | 1ku TSSOP (PW) | 16 2000 | LARGE T&R  
CD74HC123PWRG4 ACTIVE -55 to 125 0.26 | 1ku TSSOP (PW) | 16 2000 | LARGE T&R  
CD74HC123PWT ACTIVE -55 to 125 0.60 | 1ku TSSOP (PW) | 16 250 | SMALL T&R  
CD74HC123PWTE4 ACTIVE -55 to 125 0.60 | 1ku TSSOP (PW) | 16 250 | SMALL T&R  
CD74HC123PWTG4 ACTIVE -55 to 125 0.60 | 1ku TSSOP (PW) | 16 250 | SMALL T&R  
CD74HC123 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
CD74HC123E Pb-Free (RoHS)  CU NIPDAU  N/A for Pkg Type CD74HC123E CD74HC123E
CD74HC123EE4 Pb-Free (RoHS)  CU NIPDAU  N/A for Pkg Type CD74HC123EE4 CD74HC123EE4
CD74HC123M Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM CD74HC123M CD74HC123M
CD74HC123M96 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM CD74HC123M96 CD74HC123M96
CD74HC123M96E4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM CD74HC123M96E4 CD74HC123M96E4
CD74HC123M96G4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM CD74HC123M96G4 CD74HC123M96G4
CD74HC123ME4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM CD74HC123ME4 CD74HC123ME4
CD74HC123MG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM CD74HC123MG4 CD74HC123MG4
CD74HC123MT Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM CD74HC123MT CD74HC123MT
CD74HC123MTE4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM CD74HC123MTE4 CD74HC123MTE4
CD74HC123MTG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM CD74HC123MTG4 CD74HC123MTG4
CD74HC123NSR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM CD74HC123NSR CD74HC123NSR
CD74HC123NSRE4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM CD74HC123NSRE4 CD74HC123NSRE4
CD74HC123NSRG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM CD74HC123NSRG4 CD74HC123NSRG4
CD74HC123PW Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM CD74HC123PW CD74HC123PW
CD74HC123PWE4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM CD74HC123PWE4 CD74HC123PWE4
CD74HC123PWG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM CD74HC123PWG4 CD74HC123PWG4
CD74HC123PWR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM CD74HC123PWR CD74HC123PWR
CD74HC123PWRE4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM CD74HC123PWRE4 CD74HC123PWRE4
CD74HC123PWRG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM CD74HC123PWRG4 CD74HC123PWRG4
CD74HC123PWT Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM CD74HC123PWT CD74HC123PWT
CD74HC123PWTE4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM CD74HC123PWTE4 CD74HC123PWTE4
CD74HC123PWTG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM CD74HC123PWTG4 CD74HC123PWTG4
CD74HC123 应用技术支持与电子电路设计开发资源下载
  1. CD74HC123 数据资料 dataSheet 下载.PDF
  2. TI 德州仪器特殊逻辑产品选型与价格 . 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)