SN74LS279A 四类 /S-/R 锁存器

The ’279 offers 4 basic S\-R\ flip-flop latches in one 16-pin, 300-mil package. Under conventional operation, the S\-R\ inputs are normally held high. When the S\ input is pulsed low, the Q output will be set high. When R\ is pulsed low, the Q output will be reset low. Normally, the S\-R\ inputs should not be taken low simultaneously. The Q output will be unpredictable in this condition.

SN74LS279A
Voltage Nodes(V) 5  
Vcc range(V) 4.75 to 5.25  
Input Level TTL  
Output Level TTL  
Output Drive(mA) -0.4/8  
Output 2S  
No. of Bits 4  
tpd max(ns) 22  
Rating Catalog  
Technology Family LS
SN74LS279A 特性
SN74LS279A 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
SN74LS279AD ACTIVE 0 to 70 2.70 | 1ku SOIC (D) | 16 40 | TUBE LS279A
SN74LS279ADE4 ACTIVE 0 to 70 2.70 | 1ku SOIC (D) | 16 40 | TUBE LS279A
SN74LS279ADG4 ACTIVE 0 to 70 2.70 | 1ku SOIC (D) | 16 40 | TUBE LS279A
SN74LS279ADR ACTIVE 0 to 70 2.25 | 1ku SOIC (D) | 16 2500 | LARGE T&R LS279A
SN74LS279ADRE4 ACTIVE 0 to 70 2.25 | 1ku SOIC (D) | 16 2500 | LARGE T&R LS279A
SN74LS279ADRG4 ACTIVE 0 to 70 2.25 | 1ku SOIC (D) | 16 2500 | LARGE T&R LS279A
SN74LS279AN ACTIVE 0 to 70 2.45 | 1ku PDIP (N) | 16 25 | TUBE SN74LS279AN
SN74LS279ANE4 ACTIVE 0 to 70 2.45 | 1ku PDIP (N) | 16 25 | TUBE SN74LS279AN
SN74LS279A 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
SN74LS279AD Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74LS279AD SN74LS279AD
SN74LS279ADE4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74LS279ADE4 SN74LS279ADE4
SN74LS279ADG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74LS279ADG4 SN74LS279ADG4
SN74LS279ADR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74LS279ADR SN74LS279ADR
SN74LS279ADRE4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74LS279ADRE4 SN74LS279ADRE4
SN74LS279ADRG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74LS279ADRG4 SN74LS279ADRG4
SN74LS279AN Pb-Free (RoHS)  CU NIPDAU  N/A for Pkg Type SN74LS279AN SN74LS279AN
SN74LS279ANE4 Pb-Free (RoHS)  CU NIPDAU  N/A for Pkg Type SN74LS279ANE4 SN74LS279ANE4
SN74LS279A 应用技术支持与电子电路设计开发资源下载
  1. SN74LS279A 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)