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Number of channels 8 IOL (max) (mA) 48 IOH (max) (mA) -12 Input type TTL Output type TTL Features Over-voltage tolerant inputs, Very high speed (tpd 5-10ns) Technology family AS Rating Military Operating temperature range (°C) -55 to 125
Number of channels 8 IOL (max) (mA) 48 IOH (max) (mA) -12 Input type TTL Output type TTL Features Over-voltage tolerant inputs, Very high speed (tpd 5-10ns) Technology family AS Rating Military Operating temperature range (°C) -55 to 125
LCCC (FK) 20 79.0321 mm² (— mm × — mm) CDIP (J) 20 167.464 mm² (— mm × — mm)
  • 4.5-V to 5.5-V VCC Operation
  • Max tpd of 5.5 ns at 5 V
  • 3-State Outputs Drive Bus Lines Directly
  • pnp Inputs Reduce dc Loading

  • 4.5-V to 5.5-V VCC Operation
  • Max tpd of 5.5 ns at 5 V
  • 3-State Outputs Drive Bus Lines Directly
  • pnp Inputs Reduce dc Loading

These octal bus transceivers are designed for asynchronous two-way communication between data buses. The control-function implementation minimizes external timing requirements.

The devices allow data transmission from the A bus to the B bus or from the B bus to the A bus, depending upon the logic level at the direction-control (DIR) input. The output-enable (OE)\ input can be used to disable the device so that the buses are effectively isolated.

The -1 version of the SN74ALS245A is identical to the standard version, except that the recommended maximum IOL is increased to 48 mA. There is no -1 version of the SN54ALS245A.

These octal bus transceivers are designed for asynchronous two-way communication between data buses. The control-function implementation minimizes external timing requirements.

The devices allow data transmission from the A bus to the B bus or from the B bus to the A bus, depending upon the logic level at the direction-control (DIR) input. The output-enable (OE)\ input can be used to disable the device so that the buses are effectively isolated.

The -1 version of the SN74ALS245A is identical to the standard version, except that the recommended maximum IOL is increased to 48 mA. There is no -1 version of the SN54ALS245A.

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顶层文档 类型 标题 格式选项 下载最新的英语版本 日期
* 数据表 SN54ALS245A, SN54AS245, SN74ALS245A, SN74AS245 数据表 (Rev. A) 2003-1-13

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