IC元器件

SN54LS245J

参考价格:RMB30.00-RMB38.10

Texas Instruments 总线收发器

SN54LS245J 供应商

SN54LS245J 属性参数

  • 传输延迟测试条件:45pF
  • 安装类型:通孔
  • 宽度:6.92mm
  • 封装类型:CDIP
  • 尺寸:24.2 x 6.92 x 4.57mm
  • 引脚数目:20
  • 数据流方向:双向
  • 最低工作温度:-55 °C
  • 最大低电平输出电流:12mA
  • 最大工作电源电压:5.5 V
  • 最大高电平输出电流:-12mA
  • 最小工作电源电压:4.5 V
  • 最长传播延迟时间@最长CL:12 ns @ 5 V
  • 最高工作温度:+125 °C
  • 极性:非反相
  • 每片芯片元件数目:1
  • 每片芯片通道数目:8
  • 输入电平:TTL
  • 输出电平:TTL
  • 逻辑功能:总线收发器
  • 逻辑系列:LS
  • 长度:24.2mm
  • 高度:4.57mm

产品特性

  • 3-State Outputs Drive Bus Lines Directly
  • PNP Inputs Reduce DC Loading on Bus Lines
  • Hysteresis at Bus Inputs Improves Noise Margins
  • Typical Propagation Delay Times Port to Port, 8 ns

产品概述

These octal bus transceivers are designed for asynchronous two-way communication between data buses. The control-function implementation minimizes external timing requirements.The SNx4LS245 devices allow data transmission 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 disable the device so that the buses are effectively isolated.

SN54LS245J 电路图