HD74HC139

HD74HC138

The HD74HC138 has 3 binary select inputs (A, B and C). If the HD74HC138 is enabled these inputs determine which one of the eight normally high outputs will go low. Two active low and one active high enables (G1, G2A and G2B) are provided to ease the cascadin...

HD74HC137

The HD74HC137 implements a three-to-eight line decoder with latches on the three address inputs. When GL goes from low to high, the address present at the select inputs (A, B and C) is stored in the latches. As long as GL remains high no address changes will...

HD74HC133

This HD74HC133 contains a single 13-input NAND gate. They perform the boolean functions in positive logic.Y =A·B·C·D·E·F·G·H·I·J·K·L·M orY =A +B +C +D +E +F +G +H + I +J +K +L + M

HD74HC132

HD74HC131

The HD74HC131 is 3-to-8 linedecoder. It has Address select inputs (A,B,C) and D type register.Address select data store to D type registers, during the positive going transition of the clock pulse. Output control (G 1, G2) are independent of select input and...

HD74HC126

The HD74HC125, HD74HC126 require the 3-state control input C to be taken high to put the output into the high impedance condition, whereas the HD74HC125, HD74HC126 requires the control input to be low to put the output into high impedance.