这些器件为具有使能输入的正缘触发八路 D 型触发器。’HC377 器件与 ’HC273 器件类似，但具有锁存的时钟使能 (CLKEN) 输入，而不是常见的清零。 SN74HC377 的特性 2V 至 6V 的宽工作电压范围 输出可驱动多达 10 个 LSTTL 负载 低功耗，ICC 最大值为 80 µA tpd典型值 = 12 ns ...

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74 AHC 574; 74 AHCT 574是一个8位的正沿触发的D型触发器与3态输出。该器件具有时钟（CP）和输出使能（OE）输入。触发器将存储其个人的D输入，满足建立和保持时间的要求，低到高时钟（CP）过渡的状态。一个高的OE导致产出承担高阻抗关状态. OE输入操作不影响触发 ...

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