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Description
Where to use 7402 IC
There are many reasons for using 7402. Here are a few cases of why it is used.
1. The chip is basically used when the (NOR) logic function is required. The chip has four (NOR) gates in it. We can use one or all gates.
2. When you want a logic inverter. NOR gates in this chip can be reconnected to make them NOT gates. Each NOR gate can form a single NOT gate. So we can make the 7402 chip a four NOT gate chip if necessary.
3. Where high-speed NOR operation is necessary. As mentioned earlier the gates in the chip are designed by SCHOTTKY TRANSISTORS. With them, the switching delays of gates are minimized. Because of this, the chip can be used high speed applications.
4. 7402 is one of the cheapest IC. It is really popular and is available everywhere.
5. The chip also provides TTL outputs which are a must in some systems.
How to use 7402
Like every other chip in the 7400 series, this IC needs to be connected to power before you can use it. Most 7400 ICs support a VCC voltage of 5V. One difference between the HC and LS version of the chip is that the 74HC02 supports 2V to 6V, while the 74LS02 supports only 5V.
Once it’s connected, you can use any of the four basic NOR gates inside.