The SNx4LS24x, SNx4S24x octal buffers and line drivers are designed specifically to improve both the performance and density of three-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. The designer has a choice of selected combinations of inverting and non-inverting outputs, symmetrical, active-low output-control (G) inputs, and complementary output-control (G and G) inputs. These devices feature high fan-out, improved fan-in, and 400-mV noise margin. The SN74LS24x and SN74S24x devices can be used to drive terminated lines down to 133 Ω.

• Inputs Tolerant Down to 2 V, Compatible With 3.3-V or 2.5-V Logic Inputs
• Maximum tpd of 15 ns at 5 V
• 3-State Outputs Drive Bus Lines or Buffer Memory Address Registers
• PNP Inputs Reduce DC Loading
• Hysteresis at Inputs Improves Noise Margins

• Technology Family
• S
• Supply voltage (Min) (V)
• 4.75
• Supply voltage (Max) (V)
• 5.25
• Number of channels (#)
• 8
• IOL (Max) (mA)
• 64
• IOH (Max) (mA)
• -15
• ICC (Max) (uA)
• 150000
• Input type
• Bipolar
• Output type
• 3-State
• Features
• Very high speed (tpd 5-10ns)
• Rating
• Catalog

SN74S240的完整型号有：SN74S240DW、SN74S240N，以下是这些产品的关键参数及官网采购报价：

SN74S240DW，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SN74S240DW的批量USD价格：1.845（1000+）

SN74S240N，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SN74S240N的批量USD价格：2.122（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。