SN74AS374 具有三态输出的八路 D 类边沿触发器

These octal D-type edge-triggered flip-flops feature 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. They are particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.

On the positive transition of the clock (CLK) input, the Q outputs are set to the logic levels set up at the data (D) inputs.

A buffered output-enable (OE\) input places the eight outputs in either a normal logic state (high or low logic levels) or the high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. The high-impedance state and the increased drive provide the capability to drive bus lines without interface or pullup components

SN74AS374
Voltage Nodes(V) 5  
Vcc range(V) 4.5 to 5.5  
Input Level TTL  
Output Level TTL  
Output Drive(mA) -15/48  
No. of Outputs 8  
Static Current 124  
th(ns) 2  
tpd max(ns) 9  
tsu(ns) 2  
Logic True  
Technology Family AS  
Rating Catalog
SN74AS374 特性
SN74AS374 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
SN74AS374DW ACTIVE 0 to 70 1.10 | 1ku SOIC (DW) | 20 25 | TUBE AS374
SN74AS374DWE4 ACTIVE 0 to 70 1.10 | 1ku SOIC (DW) | 20 25 | TUBE AS374
SN74AS374DWG4 ACTIVE 0 to 70 0.90 | 1ku SOIC (DW) | 20 2000 | LARGE T&R AS374
SN74AS374DWR ACTIVE 0 to 70 0.90 | 1ku SOIC (DW) | 20 2000 | LARGE T&R AS374
SN74AS374DWRE4 ACTIVE 0 to 70 0.90 | 1ku SOIC (DW) | 20 2000 | LARGE T&R AS374
SN74AS374DWRG4 ACTIVE 0 to 70 0.90 | 1ku SOIC (DW) | 20 2000 | LARGE T&R AS374
SN74AS374N ACTIVE 0 to 70 1.00 | 1ku PDIP (N) | 20 20 | TUBE SN74AS374N
SN74AS374N3 OBSOLETE 0 to 70   PDIP (N) | 20   SN74AS374N
SN74AS374NE4 ACTIVE 0 to 70 1.00 | 1ku PDIP (N) | 20 20 | TUBE SN74AS374N
SN74AS374NSR ACTIVE 0 to 70 1.00 | 1ku SO (NS) | 20 2000 | LARGE T&R AS374
SN74AS374NSRE4 ACTIVE 0 to 70 1.00 | 1ku SO (NS) | 20 2000 | LARGE T&R AS374
SN74AS374NSRG4 ACTIVE 0 to 70 1.00 | 1ku SO (NS) | 20 2000 | LARGE T&R AS374
SN74AS374 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
SN74AS374DW Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74AS374DW SN74AS374DW
SN74AS374DWE4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74AS374DWE4 SN74AS374DWE4
SN74AS374DWG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74AS374DWG4 SN74AS374DWG4
SN74AS374DWR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74AS374DWR SN74AS374DWR
SN74AS374DWRE4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74AS374DWRE4 SN74AS374DWRE4
SN74AS374DWRG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74AS374DWRG4 SN74AS374DWRG4
SN74AS374N Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74AS374N SN74AS374N
SN74AS374N3 Pb-Free (RoHS)  CU NIPDAU  N/A for Pkg Type SN74AS374N3 SN74AS374N3
SN74AS374NE4 Pb-Free (RoHS)  CU NIPDAU  N/A for Pkg Type SN74AS374NE4 SN74AS374NE4
SN74AS374NSR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74AS374NSR SN74AS374NSR
SN74AS374NSRE4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74AS374NSRE4 SN74AS374NSRE4
SN74AS374NSRG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74AS374NSRG4 SN74AS374NSRG4
SN74AS374 应用技术支持与电子电路设计开发资源下载
  1. SN74AS374 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)