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)
• 64
• IOH (Max) (mA)
• -15
• Technology Family
• AS
• Rating
• Catalog
• Operating temperature range (C)
• 0 to 70

SN74AS245的完整型号有：SN74AS245DW、SN74AS245N、SN74AS245NSR，以下是这些产品的关键参数及官网采购报价：

SN74AS245DW，工作温度：0 to 70，封装：SOIC (DW)-20，包装数量MPQ：25个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网SN74AS245DW的批量USD价格：1.794（1000+）

SN74AS245N，工作温度：0 to 70，封装：PDIP (N)-20，包装数量MPQ：20个，MSL 等级/回流焊峰值温度：N/A for Pkg Type，引脚镀层/焊球材料：NIPDAU，TI官网SN74AS245N的批量USD价格：2.063（1000+）

SN74AS245NSR，工作温度：0 to 70，封装：SO (NS)-20，包装数量MPQ：2000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网SN74AS245NSR的批量USD价格：1.794（1000+）

14-24-LOGIC-EVM 支持 14 到 24 引脚 PW、DB、D、DW、NS、DYY 和 DGV 封装的通用逻辑 EVM

该 EVM 设计用于支持采用 14 至 24 引脚 D、DW、DB、NS、PW、DYY 或 DGV 封装的任何逻辑器件。