SN54LS645 八路总线收发器

These octal bus transceivers are designed for asynchronous two-way communication between data buses. The devices transmit data from the A bus to the B bus or from the B bus to the A bus depending upon the level at the direction control (DIR) input. The enable input (G) can be used to disable the device so the buses are effectively isolated.

The -1 versions of the SN74LS640 thru SN74LS642, SN74LS644, and SN74LS645 are identical to the standard versions except that the recommended maximum IOL is increased to 48 milliamperes. There are no -1 versions of the SN54LS640 thru SN54LS642, SN54LS644, and SN54LS645.

The SN54LS640 thru SN54LS642, SN54LS644, and SN54LS645 are characterized for operation over the full military tempearture range of –55°C to 125°C

SN54LS645
Voltage Nodes (V) 5    
Vcc range (V) 4.5 to 5.5    
Input Level TTL    
Output Level TTL    
No. of Outputs 8    
Logic True    
Rating Military    
Technology Family LS    
SN54LS645 特性
SN54LS645 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
SN54LS645J ACTIVE -55 to 125 7.75 | 1ku CDIP (J) | 20 1 | TUBE  
SNJ54LS645FK ACTIVE -55 to 125 17.63 | 1ku LCCC (FK) | 20 1 | TUBE  
SNJ54LS645J ACTIVE -55 to 125 9.11 | 1ku CDIP (J) | 20 1 | TUBE  
SN54LS645 应用手册
标题 类型 大小
选择合适的德州仪器 (TI) 信号开关 PDF 1091
CMOS 非缓冲反向器在振荡器电路中的使用 PDF 951
选择正确的电平转换解决方案 (Rev. A) PDF 635
How to Select Little Logic PDF 959
Shelf-Life Evaluation of Lead-Free Component Finishes PDF 1310
Understanding and Interpreting Standard-Logic Data Sheets PDF 857
Texas Instruments Little Logic Application Report PDF 359
TI IBIS File Creation, Validation, and Distribution Processes PDF 380
16-Bit Widebus Logic Families in 56-Ball, 0.65-mm Pitch Very Thin Fine-Pitch BGA PDF 895
Power-Up 3-State (PU3S) Circuits in TI Standard Logic Devices PDF 209
Implications of Slow or Floating CMOS Inputs PDF 101
Migration From 3.3-V To 2.5-V Power Supplies For Logic Devices PDF 115
Bus-Interface Devices With Output-Damping Resistors Or Reduced-Drive Outputs PDF 105
CMOS Power Consumption and CPD Calculation PDF 89
LVC Characterization Information PDF 114
Live Insertion PDF 150
Input and Output Characteristics of Digital Integrated Circuits PDF 1708
Understanding Advanced Bus-Interface Products Design Guide PDF 253
SN54LS645 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
SN54LS645J TBD   A42   N/A for Pkg Type SN54LS645J SN54LS645J
SNJ54LS645FK TBD   POST-PLATE   N/A for Pkg Type SNJ54LS645FK SNJ54LS645FK
SNJ54LS645J TBD   A42   N/A for Pkg Type SNJ54LS645J SNJ54LS645J
SN54LS645 应用技术支持与电子电路设计开发资源下载
  1. SN54LS645 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. (用户指南)LOGIC Pocket Data Book
  4. (用户指南)Signal Switch Data Book
  5. (用户指南)LVC and LV Low-Voltage CMOS Logic Data Book
  6. (选择指南)逻辑器件指南 2009 (Rev. Z)
  7. (选择指南)小尺寸逻辑器件指南 (Rev. D)
  8. 2008年第一季度通信基础设施方案指南 (Rev. G)
  9. Communications Infrastructure Solutions Guide 1Q2010
  10. Design Summary for WCSP Little Logic
  11. Standard Linear & Logic for PCs, Servers & Motherboards
  12. STANDARD LINEAR AND LOGIC FOR DVD/VCD PLAYERS
  13. Military Low Voltage Solutions
  14. Low-Voltage Logic (LVC) Designer's Guide
  15. Logic Cross-Reference
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