The CD74AC251 and CD74ACT251 8-input multiplexers that utilize the Harris Advanced CMOS Logic technology. This multiplexer features both true (Y) and complement (Y\) outputs as well as an Output Enable (OE\) input. The OE must be at a LOW logic level to enable this device. When the OE\ input is HIGH, both outputs are in the high-impedance state. When enabled, address information on the data select inputs determines which data input is routed to the Y and Y\ outputs.

• Buffered Inputs
• Typical Propagation Delay - 6ns at VCC = 5V, TA = 25°C, CL = 50pF
• Exceeds 2kV ESD Protection MIL-STD-883, Method 3015
• SCR-Latchup-Resistant CMOS Process and Circuit Design
• Speed of Bipolar FAST?/AS/S with Significantly Reduced Power Consumption
• Balanced Propagation Delays
• AC Types Feature 1.5V to 5.5V Operation and Balanced Noise Immunity at 30% of the Supply
• ±24mA Output Drive Current - Fanout to 15 FAST? ICs - Drives 50 Transmission Lines
• Characterized for operation from –40° to 85°C

FAST? is a Trademark of Fairchild Semiconductor.

• Technology Family
• AC
• Function
• Digital Multiplexer
• Configuration
• 8:1
• Number of channels (#)
• 1
• Operating temperature range (C)
• -55 to 125
• Rating
• Catalog

CD74AC251的完整型号有：CD74AC251M、CD74AC251M96，以下是这些产品的关键参数及官网采购报价：

CD74AC251M，工作温度：-55 to 125，封装：SOIC (D)-16，包装数量MPQ：40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CD74AC251M的批量USD价格：.297（1000+）

CD74AC251M96，工作温度：-55 to 125，封装：SOIC (D)-16，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CD74AC251M96的批量USD价格：.251（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。