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 I_OL is increased to 48 mA. There is no -1 version of the SN54ALS245A.

• 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

• IOL (Max) (mA)
• 48
• IOH (Max) (mA)
• -12
• Technology Family
• AS
• Rating
• Military
• Operating temperature range (C)
• -55 to 125

SN54AS245的完整型号有：SN54AS245J、SNJ54AS245FK、SNJ54AS245J，以下是这些产品的关键参数及官网采购报价：

SN54AS245J，工作温度：-55 to 125，封装：CDIP (J)-20，包装数量MPQ：1个，MSL 等级/回流焊峰值温度：N/A for Pkg Type，引脚镀层/焊球材料：SNPB，TI官网SN54AS245J的批量USD价格：14.034（1000+）

SNJ54AS245FK，工作温度：-55 to 125，封装：LCCC (FK)-20，包装数量MPQ：1个，MSL 等级/回流焊峰值温度：N/A for Pkg Type，引脚镀层/焊球材料：SNPB，TI官网SNJ54AS245FK的批量USD价格：25.437（1000+）

SNJ54AS245J，工作温度：-55 to 125，封装：CDIP (J)-20，包装数量MPQ：1个，MSL 等级/回流焊峰值温度：N/A for Pkg Type，引脚镀层/焊球材料：SNPB，TI官网SNJ54AS245J的批量USD价格：19.746（1000+）