SN74AS874 双路 4 位 D 类边沿触发器

These dual 4-bit D-type edge-triggered flip-flops feature 3-state outputs designed specifically as bus drivers. They are particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.

The edge-triggered flip-flops enter data on the low-to-high transition of the clock (CLK) input. The SN54ALS874B, SN74ALS874B, and SN74AS874 have clear () inputs and noninverting Q outputs. The SN74ALS876A and SN74AS876 have preset () inputs and inverting Q\ outputs; taking low causes the four Q or Q\ outputs to go low independently of the clock.

The SN54ALS874B is characterized for operation over the full military temperature range of -55°C to 125°C

SN74AS874
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 141  
th(ns) 1  
tpd max(ns) 10.5  
tsu(ns) 2  
Logic True  
Technology Family AS  
Rating Catalog
SN74AS874 特性
SN74AS874 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
SN74AS874DW ACTIVE 0 to 70 1.10 | 1ku SOIC(DW) | 24 25 | TUBE AS874
SN74AS874DWE4 ACTIVE 0 to 70 1.10 | 1ku SOIC(DW) | 24 25 | TUBE AS874
SN74AS874DWG4 ACTIVE 0 to 70 0.90 | 1ku SOIC(DW) | 24 2000 | LARGE T&R AS874
SN74AS874DWR ACTIVE 0 to 70 0.90 | 1ku SOIC(DW) | 24 2000 | LARGE T&R AS874
SN74AS874DWRE4 ACTIVE 0 to 70 0.90 | 1ku SOIC(DW) | 24 2000 | LARGE T&R AS874
SN74AS874DWRG4 ACTIVE 0 to 70 0.90 | 1ku SOIC(DW) | 24 2000 | LARGE T&R AS874
SN74AS874N ACTIVE 0 to 70 1.00 | 1ku PDIP (N) | 24 20 | TUBE SN74AS874N
SN74AS874N3 OBSOLETE 0 to 70   PDIP (N) | 24   SN74AS874N
SN74AS874NE4 ACTIVE 0 to 70 1.00 | 1ku PDIP (N) | 24 20 | TUBE SN74AS874N
SN74AS874NSR ACTIVE 0 to 70 1.00 | 1ku SO (NS) | 24 2000 | LARGE T&R AS874
SN74AS874NSRE4 ACTIVE 0 to 70 1.00 | 1ku SO (NS) | 24 2000 | LARGE T&R AS874
SN74AS874NSRG4 ACTIVE 0 to 70 1.00 | 1ku SO (NS) | 24 2000 | LARGE T&R AS874
SN74AS874 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
SN74AS874DW Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74AS874DW SN74AS874DW
SN74AS874DWE4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74AS874DWE4 SN74AS874DWE4
SN74AS874DWG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74AS874DWG4 SN74AS874DWG4
SN74AS874DWR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74AS874DWR SN74AS874DWR
SN74AS874DWRE4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74AS874DWRE4 SN74AS874DWRE4
SN74AS874DWRG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74AS874DWRG4 SN74AS874DWRG4
SN74AS874N Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74AS874N SN74AS874N
SN74AS874N3 Pb-Free (RoHS)  CU NIPDAU  N/A for Pkg Type SN74AS874N3 SN74AS874N3
SN74AS874NE4 Pb-Free (RoHS)  CU NIPDAU  N/A for Pkg Type SN74AS874NE4 SN74AS874NE4
SN74AS874NSR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74AS874NSR SN74AS874NSR
SN74AS874NSRE4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74AS874NSRE4 SN74AS874NSRE4
SN74AS874NSRG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74AS874NSRG4 SN74AS874NSRG4
SN74AS874 应用技术支持与电子电路设计开发资源下载
  1. SN74AS874 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)