SN74LVC4245A 具有可配置电压转换和 3 态输出的 32 位双电源总线收发器

This 8-bit (octal) noninverting bus transceiver contains two separate supply rails; B port has VCCB, which is set at 3.3 V, and A port has VCCA, which is set at 5 V. This allows for translation from a 3.3-V to a 5-V environment, and vice versa.

The SN74LVC4245A is designed for asynchronous communication between data buses. The device transmits data from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE)\ input can be used to disable the device so the buses are effectively isolated. The control circuitry (DIR, OE\) is powered by VCCA.

The SN74LVC4245A pinout allows the designer to switch to a normal all-3.3-V or all-5-V 20-pin ’245 device without board re-layout

SN74LVC4245A
Voltage Nodes(V) 5 / 3.3, 2.7  
Vcc range(V) SplitRail  
Input Level TTL/CMOS  
Output Level LVTTL  
Logic True  
No. of Bits 8  
No. of Outputs 8  
Output Drive(mA) -24/24  
Static Current 0.08  
tpd max(ns) 6.7  
Technology Family LVC  
Vmin(V) 4.5/2.7  
Vmax(V) 5.5/3.6  
Pin/Package 24SOIC, 24SSOP, 24TSSOP  
Operating Temperature Range(°C) -40 to 85  
Approx. Price (US$) 0.70 | 1ku  
Rating Catalog
SN74LVC4245A 特性
SN74LVC4245A 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
SN74LVC4245ADW ACTIVE -40 to 85 0.80 | 1ku SOIC (DW) | 24 25 | TUBE  
SN74LVC4245ADWE4 ACTIVE -40 to 85 0.80 | 1ku SOIC (DW) | 24 25 | TUBE  
SN74LVC4245ADWG4 ACTIVE -40 to 85 0.80 | 1ku SOIC (DW) | 24 25 | TUBE  
SN74LVC4245ADWR ACTIVE -40 to 85 0.70 | 1ku SOIC (DW) | 24 2000 | LARGE T&R  
SN74LVC4245ADWRE4 ACTIVE -40 to 85 0.70 | 1ku SOIC (DW) | 24 2000 | LARGE T&R  
SN74LVC4245ADWRG4 ACTIVE -40 to 85 0.70 | 1ku SOIC (DW) | 24 2000 | LARGE T&R  
SN74LVC4245A 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
SN74LVC4245ADW Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74LVC4245ADW SN74LVC4245ADW
SN74LVC4245ADWE4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74LVC4245ADWE4 SN74LVC4245ADWE4
SN74LVC4245ADWG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74LVC4245ADWG4 SN74LVC4245ADWG4
SN74LVC4245ADWR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74LVC4245ADWR SN74LVC4245ADWR
SN74LVC4245ADWRE4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74LVC4245ADWRE4 SN74LVC4245ADWRE4
SN74LVC4245ADWRG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74LVC4245ADWRG4 SN74LVC4245ADWRG4
SN74LVC4245A 应用技术支持与电子电路设计开发资源下载
  1. SN74LVC4245A 数据资料 dataSheet 下载.PDF
  2. TI 德州仪器电压电平转换产品选型与价格 . 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)