SN74LS670 具有三态输出的 4 x 4 寄存器文件

The SN54LS670 and SN74LS670 MSI 16-bit TTL register files incorporate the equivalent of 98 gates. The register file is organized as 4 words of 4 bits each and separate on-chip decoding is provided for addressing the four word locations to either write-in or retrieve data. This permits simultaneous writing into one location and reading from another word location.

Four data inputs are available which are used to supply the 4-bit word to be stored. Location of the word is determined by the write-address inputs A and B in conjunction with a write-enable signal. Data applied at the inputs should be in its true form. That is, if a high-level signal is desired from the output, a high-level is applied at the data input for that particular bit location

SN74LS670
Voltage Nodes(V) 5  
Vcc range(V) 4.75 to 5.25  
Input Level TTL  
Output Level TTL  
Output Drive(mA) -2.6/8  
Output 3S  
No. of Bits 16  
th(ns) 5  
tpd max(ns) 45  
tsu(ns) 15  
Rating Catalog  
Technology Family LS
SN74LS670 特性
SN74LS670 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
SN74LS670D ACTIVE 0 to 70 2.70 | 1ku SOIC (D) | 16 40 | TUBE LS670
SN74LS670DE4 ACTIVE 0 to 70 2.70 | 1ku SOIC (D) | 16 40 | TUBE LS670
SN74LS670DG4 ACTIVE 0 to 70 2.70 | 1ku SOIC (D) | 16 40 | TUBE LS670
SN74LS670DR ACTIVE 0 to 70 2.25 | 1ku SOIC (D) | 16 2500 | LARGE T&R LS670
SN74LS670DRE4 ACTIVE 0 to 70 2.25 | 1ku SOIC (D) | 16 2500 | LARGE T&R LS670
SN74LS670DRG4 ACTIVE 0 to 70 2.25 | 1ku SOIC (D) | 16 2500 | LARGE T&R LS670
SN74LS670N ACTIVE 0 to 70 2.45 | 1ku PDIP (N) | 16 25 | TUBE SN74LS670N
SN74LS670NE4 ACTIVE 0 to 70 2.45 | 1ku PDIP (N) | 16 25 | TUBE SN74LS670N
SN74LS670 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
SN74LS670D Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74LS670D SN74LS670D
SN74LS670DE4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74LS670DE4 SN74LS670DE4
SN74LS670DG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74LS670DG4 SN74LS670DG4
SN74LS670DR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74LS670DR SN74LS670DR
SN74LS670DRE4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74LS670DRE4 SN74LS670DRE4
SN74LS670DRG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74LS670DRG4 SN74LS670DRG4
SN74LS670N Pb-Free (RoHS)  CU NIPDAU  N/A for Pkg Type SN74LS670N SN74LS670N
SN74LS670NE4 Pb-Free (RoHS)  CU NIPDAU  N/A for Pkg Type SN74LS670NE4 SN74LS670NE4
SN74LS670 应用技术支持与电子电路设计开发资源下载
  1. SN74LS670 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)