top of page

       

          74LS12             TRIPLE 3-INPUT NAND GATE             POSITIVE LOGIC      

                                                            

 

The 7412 IC package contains three independent positive logic, 3 input NAND GATES. Pins 14 and 7 provide power for all three logic gates.
 

74LS12 Photograph of DIP package

7412
74LS12 = Low Power Schottkey
74HCT12 = High Speed
 

74LS12 pinout diagram
Back to makeyourownchip 7400 series resources
Available package types for 74LS12

A*B*C = X
0*0*0=1
0*0*1=1
0*1*0=1
0*1*1=1
1*0*0=1
1*0*1=1
1*1*0=1
1*1*1=0

 

Outputs of one gate can be connected to inputs of another within the same chip or to another chip as long as they share the same ground. The figure to the left illustrates a basic circuit showing how to wire inputs and using LEDs to display outputs.

NAND GATE Logic-Rules:
The same basic rules apply for the triple input NAND gate as in other more common 2-input variants.

If the three inputs are labeled A, B, and C and the output = X, then the states can be modeled by the chart on the left.
 

VIEW/DOWNLOAD

DATA SHEET

bottom of page