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SN74HC161 4 位同步二进制计数器

These synchronous, presettable counters feature an internal carry look-ahead for application in high-speed counting designs. The ’HC161 devices are 4-bit binary counters. Synchronous operation is provided by having all flip-flops clocked simultaneously so that the outputs change coincident with each other when so instructed by the count-enable (ENP, ENT) inputs and internal gating. This mode of operation eliminates the output counting spikes that are normally associated with synchronous (ripple-clock) counters. A buffered clock (CLK) input triggers the four flip-flops on the rising (positive-going) edge of the clock waveform.

These counters are fully programmable; that is, they can be preset to any number between 0 and 9 or 15

SN74HC161
Rating Catalog
Technology Family HC
SN74HC161 特性
SN74HC161 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
SN74HC161D ACTIVE 0 to 70 0.40 | 1ku SOIC (D) | 16 40 | TUBE  
SN74HC161DE4 ACTIVE 0 to 70 0.40 | 1ku SOIC (D) | 16 40 | TUBE  
SN74HC161DG4 ACTIVE 0 to 70 0.40 | 1ku SOIC (D) | 16 40 | TUBE  
SN74HC161DR ACTIVE 0 to 70 0.33 | 1ku SOIC (D) | 16 2500 | LARGE T&R  
SN74HC161DRE4 ACTIVE 0 to 70 0.33 | 1ku SOIC (D) | 16 2500 | LARGE T&R  
SN74HC161DRG4 ACTIVE 0 to 70 0.33 | 1ku SOIC (D) | 16 2500 | LARGE T&R  
SN74HC161N ACTIVE 0 to 70 0.35 | 1ku PDIP (N) | 16 25 | TUBE  
SN74HC161NE4 ACTIVE 0 to 70 0.35 | 1ku PDIP (N) | 16 25 | TUBE  
SN74HC161 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
SN74HC161D Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74HC161D SN74HC161D
SN74HC161DE4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74HC161DE4 SN74HC161DE4
SN74HC161DG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74HC161DG4 SN74HC161DG4
SN74HC161DR Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74HC161DR SN74HC161DR
SN74HC161DRE4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74HC161DRE4 SN74HC161DRE4
SN74HC161DRG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74HC161DRG4 SN74HC161DRG4
SN74HC161N Pb-Free (RoHS) CU NIPDAU N/A for Pkg Type SN74HC161N SN74HC161N
SN74HC161NE4 Pb-Free (RoHS) CU NIPDAU N/A for Pkg Type SN74HC161NE4 SN74HC161NE4
SN74HC161 应用技术支持与电子电路设计开发资源下载
  1. SN74HC161 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)