Support is limited to customers who have already adopted these products.
This series is upward compatible with the HD74HC Series, and has more than double the high-speed operation of the HD74HC Series.
点击产品选项表中的 CAD 模型链接，查找 SamacSys 中的原理图符号、PCB 焊盘布局和 3D CAD 模型。如果符号和模型不可用，可直接在 SamacSys 请求该符号或模型。
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