These devices contain four independent 2-input-NAND gates. The open-collector outputs require pull-up resistors to perform correctly. They may be connected to other open-collector outputs to implement active-low wired-OR or active-high wired-AND functions. Open-collector devices are often used to generate higher V_OH levels.

The SN5403, SN54LS03 and SN54S03 are characterized for operation over the full military temperature range of -55°C to 125°C. The SN7403, SN74LS03 and SN74S03 are characterized for operation from 0°C to 70°C.

• Package Options Include Plastic “Small Outline" Packages, Ceramic Chip Carriers and Flat Packages, and Plastic and Ceramic DIPs
• Dependable Texas Instruments Quality and Reliability

• Technology Family
• LS
• Supply voltage (Min) (V)
• 4.75
• Supply voltage (Max) (V)
• 5.25
• Number of channels (#)
• 4
• Inputs per channel
• 2
• IOL (Max) (mA)
• 16
• IOH (Max) (mA)
• 0
• Input type
• Bipolar
• Output type
• Open-Collector
• Features
• High speed (tpd 10- 50ns)
• Data rate (Max) (Mbps)
• 35
• Rating
• Catalog

SN74LS03的完整型号有：SN74LS03D、SN74LS03DR、SN74LS03N、SN74LS03NSR，以下是这些产品的关键参数及官网采购报价：

SN74LS03D，工作温度：0 to 70，封装：SOIC (D)-14，包装数量MPQ：50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SN74LS03D的批量USD价格：.358（1000+）

SN74LS03DR，工作温度：0 to 70，封装：SOIC (D)-14，包装数量MPQ：2500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SN74LS03DR的批量USD价格：.298（1000+）

SN74LS03N，工作温度：0 to 70，封装：PDIP (N)-14，包装数量MPQ：25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SN74LS03N的批量USD价格：.343（1000+）

SN74LS03NSR，工作温度：0 to 70，封装：SO (NS)-14，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SN74LS03NSR的批量USD价格：.328（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。