HD74HC14

HD74HC139

The HD74HC139 contains two independent two-to-four-line decoders each with a single active low enable input (1G or 2G). Data on the slect inputs (1A and 1B or 2A and 2B) cause one of the four normally high outputs to go low.

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...