SN74ALS874B 具有三态输出的双路 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

SN74ALS874B
Voltage Nodes(V) 5  
Vcc range(V) 4.5 to 5.5  
Input Level TTL  
Output Level TTL  
Output Drive(mA) -2.6/24  
No. of Outputs 8  
Static Current 25.5  
th(ns) 0  
tpd max(ns) 14  
tsu(ns) 15  
Logic True  
Technology Family ALS  
Rating Catalog
SN74ALS874B 特性
SN74ALS874B 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
SN74ALS874BDW ACTIVE 0 to 70 1.10 | 1ku SOIC(DW) | 24 25 | TUBE ALS874B
SN74ALS874BDWE4 ACTIVE 0 to 70 1.10 | 1ku SOIC(DW) | 24 25 | TUBE ALS874B
SN74ALS874BDWR ACTIVE 0 to 70 0.90 | 1ku SOIC(DW) | 24 2000 | LARGE T&R ALS874B
SN74ALS874BDWRE4 ACTIVE 0 to 70 0.90 | 1ku SOIC(DW) | 24 2000 | LARGE T&R ALS874B
SN74ALS874BN ACTIVE 0 to 70 1.00 | 1ku PDIP(NT) | 24 20 | TUBE SN74ALS874BN
SN74ALS874BN3 OBSOLETE 0 to 70   PDIP(NT) | 24   SN74ALS874BN
SN74ALS874BNE4 ACTIVE 0 to 70 1.00 | 1ku PDIP(NT) | 24 20 | TUBE SN74ALS874BN
SN74ALS874BNSR ACTIVE 0 to 70 1.00 | 1ku SO (NS) | 24 2000 | LARGE T&R ALS874B
SN74ALS874BNSRE4 ACTIVE 0 to 70 1.00 | 1ku SO (NS) | 24 2000 | LARGE T&R ALS874B
SN74ALS874B 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
SN74ALS874BDW Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74ALS874BDW SN74ALS874BDW
SN74ALS874BDWE4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74ALS874BDWE4 SN74ALS874BDWE4
SN74ALS874BDWR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74ALS874BDWR SN74ALS874BDWR
SN74ALS874BDWRE4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74ALS874BDWRE4 SN74ALS874BDWRE4
SN74ALS874BN Pb-Free (RoHS)  CU NIPDAU  N/A for Pkg Type SN74ALS874BN SN74ALS874BN
SN74ALS874BNE4 Pb-Free (RoHS)  CU NIPDAU  N/A for Pkg Type SN74ALS874BNE4 SN74ALS874BNE4
SN74ALS874BNSR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74ALS874BNSR SN74ALS874BNSR
SN74ALS874BNSRE4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74ALS874BNSRE4 SN74ALS874BNSRE4
SN74ALS874B 应用技术支持与电子电路设计开发资源下载
  1. SN74ALS874B 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)