SN54HCT74 具有清零和预设功能的双路 D 类上升沿触发器

The ’HCT74 devices contain two independent D-type positive-edge-triggered flip-flops. A low level at the preset (PRE)\ or clear (CLR)\ inputs sets or resets the outputs, regardless of the levels of the other inputs. When PRE\ and CLR\ are inactive (high), data at the data (D) input meeting the setup time requirements are transferred to the outputs on the positive-going edge of the clock (CLK) pulse. Clock triggering occurs at a voltage level and is not directly related to the rise time of CLK. Following the hold-time interval, data at the D input may be changed without affecting the levels at the outputs.

SN54HCT74
Voltage Nodes (V) 5    
Vcc range (V) 4.5 to 5.5    
Input Level TTL    
Output Level CMOS    
Output 3S    
No. of Bits 2    
Technology Family HCT    
Rating Military    
SN54HCT74 特性
SN54HCT74 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
JM38510/65352B2A ACTIVE -55 to 125 17.93 | 1ku LCCC (FK) | 20 1 | TUBE  
JM38510/65352BCA ACTIVE -55 to 125 16.01 | 1ku CDIP (J) | 14 1 | TUBE  
JM38510/65352BDA ACTIVE -55 to 125 15.25 | 1ku CFP (W) | 14 1 | TUBE  
M38510/65352B2A ACTIVE -55 to 125 17.93 | 1ku LCCC (FK) | 20 1 | TUBE  
M38510/65352BCA ACTIVE -55 to 125 16.01 | 1ku CDIP (J) | 14 1 | TUBE  
M38510/65352BDA ACTIVE -55 to 125 15.25 | 1ku CFP (W) | 14 1 | TUBE  
SN54HCT74 应用手册
标题 类型 大小
选择合适的德州仪器 (TI) 信号开关 PDF 1091
CMOS 非缓冲反向器在振荡器电路中的使用 PDF 951
选择正确的电平转换解决方案 (Rev. A) PDF 635
How to Select Little Logic PDF 959
Shelf-Life Evaluation of Lead-Free Component Finishes PDF 1310
Understanding and Interpreting Standard-Logic Data Sheets PDF 857
Texas Instruments Little Logic Application Report PDF 359
TI IBIS File Creation, Validation, and Distribution Processes PDF 380
16-Bit Widebus Logic Families in 56-Ball, 0.65-mm Pitch Very Thin Fine-Pitch BGA PDF 895
Power-Up 3-State (PU3S) Circuits in TI Standard Logic Devices PDF 209
Implications of Slow or Floating CMOS Inputs PDF 101
Migration From 3.3-V To 2.5-V Power Supplies For Logic Devices PDF 115
Bus-Interface Devices With Output-Damping Resistors Or Reduced-Drive Outputs PDF 105
CMOS Power Consumption and CPD Calculation PDF 89
LVC Characterization Information PDF 114
Live Insertion PDF 150
Input and Output Characteristics of Digital Integrated Circuits PDF 1708
Understanding Advanced Bus-Interface Products Design Guide PDF 253
SN54HCT74 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
JM38510/65352B2A TBD   POST-PLATE   N/A for Pkg Type JM38510/65352B2A JM38510/65352B2A
JM38510/65352BCA TBD   A42   N/A for Pkg Type JM38510/65352BCA JM38510/65352BCA
JM38510/65352BDA TBD   A42   N/A for Pkg Type JM38510/65352BDA JM38510/65352BDA
M38510/65352B2A TBD   POST-PLATE   N/A for Pkg Type M38510/65352B2A M38510/65352B2A
M38510/65352BCA TBD   A42   N/A for Pkg Type M38510/65352BCA M38510/65352BCA
M38510/65352BDA TBD   A42   N/A for Pkg Type M38510/65352BDA M38510/65352BDA
SN54HCT74 应用技术支持与电子电路设计开发资源下载
  1. SN54HCT74 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. (选择指南)逻辑器件指南 2009 (Rev. Z)
  4. (选择指南)小尺寸逻辑器件指南 (Rev. D)
  5. (用户指南)LOGIC Pocket Data Book
  6. (用户指南)Signal Switch Data Book
  7. (用户指南)LVC and LV Low-Voltage CMOS Logic Data Book
  8. 2008年第一季度通信基础设施方案指南 (Rev. G)
  9. Communications Infrastructure Solutions Guide 1Q2010
  10. Design Summary for WCSP Little Logic
  11. Standard Linear & Logic for PCs, Servers & Motherboards
  12. STANDARD LINEAR AND LOGIC FOR DVD/VCD PLAYERS
  13. Military Low Voltage Solutions
  14. Low-Voltage Logic (LVC) Designer's Guide
  15. Logic Cross-Reference
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