Make your own free website on Tripod.com









7408 QUAD 2-Input AND GATE
POSITIVE LOGIC



scanned image of 74LS08 Quad 2-input AND Gate
ENLARGED TO SHOW DETAIL
LS is Low-Power Schottkey


The 7408 IC package contains four independent positive logic AND GATES. Pins 14 and 7 provide power for all four logic gates.


Internal Diagram of 7408 IC
[AND SIMULATION]       [AND TRUTH-TABLE]

Simple circuit made with 7408 IC

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.

Use caution when wiring chip and be sure to check which pins are outputs and inputs!

AND GATE Logic-Rules:

The output is HIGH when both inputs are HIGH, otherwise output is LOW.




CHIP REFERENCE
HOME