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Texas Instruments SN74AXCH8T245/Q1双电源总线收发器

Texas Instruments SN74AXCH8T245/Q1双电源总线收发器是一款8位非反向总线收发器，可以解决运行于最新电压节点的器件之间的电压等级错配问题。这些节点包括运行于0.7V、0.8V、0.9V的器件以及运行于行业标准电压节点（1.8V、2.5V、3.3V）的器件，反之亦然。

The Texas Instruments SN74AXCH8T245/SN74AXCH8T245-Q1 Bus Transceiver is offered in TSSOP-24 and VQFN-24 packages. The Q1 variant is AEC-Q100 qualified for automotive applications.

特性

  • AEC-Q100 qualified for automotive applications (SN74AXCH8T245-Q1)
  • Qualified fully configurable dual-rail design allows each port to operate with a power supply range from 0.65V to 3.6V
  • Operating temperature from -40°C to +125°C
  • Bus-hold on data inputs eliminates the need for external pullup or pulldown resistors
  • Multiple direction control pins to allow simultaneous up and down translation
  • Up to 380Mbps support when translating from 1.8V to 3.3V
  • VCC isolation feature to effectively isolate both buses in a power-down scenario
  • Partial power-down mode to limit backflow current in a power-down scenario
  • Compatible with SN74AVCH8T245 and 74AVCH8T245 Level Shifters
  • Latch-up performance exceeds 100mA Per JESD 78, Class II
  • ESD protection exceeds JESD 22
    • 8000V Human-Body Model
    • 1000V Charged-Device Model
  • Package options
    • 4.4mm x 7.8mm TSSOP-24
    • 3.50mm x 5.50mm VQFN-24

应用

  • 企业和通信
  • 无线基础设施
  • 楼宇自动化
  • 数据中心交换机
  • 企业固态硬盘
  • 机架式服务器
  • EPOS

数据手册

典型应用原理图

原理图 - Texas Instruments SN74AXCH8T245/Q1双电源总线收发器
发布日期: 2018-08-24 | 更新日期: 2024-05-16