The '51 and 'S51 contain two independent 2-wide 2-input AND-OR-INVERT gates. They perform the Boolean function Y = AB + CD\.

The 'LS51 contains one 2-wide 3-input and one 2-wide 2-input AND-OR-INVERT gates. They perform the Boolean functions 1Y = (1A · 1B · 1C) + (1D · 1E · 1F)\ and 2Y = (2A · 2B) + (2C · 2D)\.

The SN5451, SN54LS51, and SN54S51 are characterized for operation over the full military temperature range of -55°C to 125°C. The SN7451, SN74LS51 and SN74S51 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
• S
• Supply voltage (Min)
• 4.75
• Supply voltage (Max) (V)
• 5.25
• Number of channels (#)
• 2
• Inputs per channel
• 2
• IOL (Max) (mA)
• 16
• IOH (Max) (mA)
• -0.4
• Input type
• Bipolar
• Output type
• Push-Pull
• Features
• High speed (tpd 10- 50ns)
• Data rate (Max) (Mbps)
• 50
• Rating
• Catalog
• Operating temperature range (C)
• 0 to 70

SN74S51的完整型号有：SN74S51D、SN74S51N，以下是这些产品的关键参数及官网采购报价：

SN74S51D，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SN74S51D的批量USD价格：0.497（1000+）

SN74S51N，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SN74S51N的批量USD价格：0.572（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。