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SN54LV20A,SN74LV20A,pdf(DUAL 4

消耗积分:2 | 格式:rar | 大小:462 | 2010-08-06

彭友旺

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These dual 4-input positive-NAND gates are designed for 2-V to 5.5-V VCC operation.

The 'LV20A devices perform the Boolean function Y = (A • B • C • D)\ or Y = A\ + B\ + C\ + D\ in positive logic.

These devices are fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the devices when they are powered down.

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