SN74CB3T3245 具有 5V 容限电平转换器的 8 位 FET 2.5V/3.3V 低电压总线开关

The SN74CB3T3245 is a high-speed TTL-compatible FET bus switch with low ON-state resistance (ron), allowing for minimal propagation delay. The device fully supports mixed-mode signal operation on all data I/O ports by providing voltage translation that tracks VCC. The SN74CB3T3245 supports systems using 5-V TTL, 3.3-V LVTTL, and 2.5-V CMOS switching standards, as well as user-defined switching levels (see Figure 1).

The SN74CB3T3245 is an 8-bit bus switch with a single ouput-enable (OE)\ input and a standard ’245 pinout. When OE\ is low, the 8-bit bus switch is ON, and the A port is connected to the B port, allowing bidirectional data flow between ports. When OE\ is high, the 8-bit bus switch is OFF, and a high-impedance state exists between the A and B ports

SN74CB3T3245
ron(max)(ohms) 8.5  
tpd max(ns) 0.25  
Pin/Package 20SOIC
Technology Family CB3T  
Operating Temperature Range(°C) -40 to 85  
Approx. Price (US$) 1.25 | 1ku
SN74CB3T3245 特性
SN74CB3T3245 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
SN74CB3T3245DW ACTIVE -40 to 85 1.45 | 1ku SOIC (DW) | 20 25  
SN74CB3T3245DWE4 ACTIVE -40 to 85 1.45 | 1ku SOIC (DW) | 20 25  
SN74CB3T3245DWG4 ACTIVE -40 to 85 1.45 | 1ku SOIC (DW) | 20 25  
SN74CB3T3245DWR ACTIVE -40 to 85 1.25 | 1ku SOIC (DW) | 20 2000  
SN74CB3T3245DWRE4 ACTIVE -40 to 85 1.25 | 1ku SOIC (DW) | 20 2000  
SN74CB3T3245DWRG4 ACTIVE -40 to 85 1.25 | 1ku SOIC (DW) | 20 2000  
SN74CB3T3245 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
SN74CB3T3245DW Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74CB3T3245DW SN74CB3T3245DW
SN74CB3T3245DWE4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74CB3T3245DWE4 SN74CB3T3245DWE4
SN74CB3T3245DWG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74CB3T3245DWG4 SN74CB3T3245DWG4
SN74CB3T3245DWR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74CB3T3245DWR SN74CB3T3245DWR
SN74CB3T3245DWRE4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74CB3T3245DWRE4 SN74CB3T3245DWRE4
SN74CB3T3245DWRG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74CB3T3245DWRG4 SN74CB3T3245DWRG4
SN74CB3T3245 应用技术支持与电子电路设计开发资源下载
  1. SN74CB3T3245 数据资料 dataSheet 下载.PDF
  2. TI 德州仪器信号开关产品选型与价格 . xls
  3. Logic Guide 2009 (PDF 4263 KB)
  4. 防止模拟开关的额外功耗 (PDF 392 KB) (PDF 1305 KB)
  5. Understanding and Interpreting Standard-Logic Data Sheets (PDF 857 KB)
  6. TI IBIS File Creation, Validation, and Distribution Processes (PDF 380 KB)
  7. Implications of Slow or Floating CMOS Inputs (PDF 101 KB)
  8. CMOS Power Consumption and CPD Calculation (PDF 89 KB)
  9. Designing With Logic (PDF 186 KB)
  10. Live Insertion (PDF 150 KB)
  11. Input and Output Characteristics of Digital Integrated Circuits (PDF 1708 KB)
  12. Using High Speed CMOS and Advanced CMOS in Systems With Multiple Vcc (PDF 43 KB)
  13. HiRel Unitrode Power Management Brochure (PDF 206 KB)
  14. LOGIC Pocket Data Book (PDF 6001 KB)
  15. HiRel Unitrode Power Management Brochure (PDF 206 KB)
  16. Logic Cross-Reference (PDF 2938 KB)