M74HC298

The M54/74HC298 is a high speed CMOSQUAD2- CHANNEL MULTIPLEXER/REGISTER fabricated in silicon gate C²MOS technology.

M54/74HC298 has the same high speed performance of LSTTL combined with true CMOS low power consumption. These circuits are controlled by the signals WORD SELECT and CLOCK. When the WORD SELECT input is taken low Word 1 (A1, B1, C1 and D1) is presented to the input of the flip-flops, and when WORDSELECT is high Word 2(A2, B2,C2 and D2) is presented to the inputs of the flip-flops. The select word is clocked to the output terminals on the negative edge of the clock pulse. All inputs are equipped with protection circuits against static discharge and transient excess voltage.