Dual 4-channel Tri-state Multiplexer - National Semiconductor

The MM54HC253 MM74HC253 utilizes advanced silicon- Gate CMOS technology to achieve the low power consump- tion and high noise immunity of standard CMOS integrated circuits, along with the capability to drive 10 LS-TTL loads. The large output drive and TRI-STATE features of this de- vice make it ideally suited for interfacing with bus lines in bus organized systems. When the output control input is taken high, the multiplexer outputs are sent into a high im- pedance state. When the output control is held low, the associated multi- plexer chooses the correct output channel for the given in- put signals determined by the select A and B inputs. By National Semiconductor Corporation
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MM74HC253




MM54HC253 Pinout will be updated soon..., now you can download the pdf datasheet to check the pinouts !
MM54HC253 circuits will be updated soon..., now you can download the pdf datasheet to check the circuits!

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