74LS08 IC

is a member of 74XXYY IC series. There are four AND gates in the chip and each gate have two inputs, hence the name QUADRUPLE 2- INPUT AND GATE. The gates in the chip are designed by SCHOTTKY TRANSISTORS for high speed logic operations.

74LS08 Pin configuration

74LS08 is a 14 PIN IC. The chip is available in different packages and is chosen depending on requirement. The description for each pin is given below.

Features and Specifications:

• Operating voltage range: +4.75 to +5.25V
• Recommended operating voltage: +5V
• Maximum supply voltage:7V
• Maximum current allowed to draw through each gate output: 8mA
• TTL outputs
• Low power consumption
• Typical Rise Time: 18ns
• Typical Fall Time: 18ns
• Operating temperature:0°C to 70°C
• Storage Temperature: -65°C to 150°C

74LS08 Equivalents
SN54LS08, IC 7408, HEF4081, Any two transistors can be reconfigured to form a AND gate.

Where to Use 74LS08 IC

There are many applications of IC 74LS08. A few mentioned below.

1. The chip is basically used where AND logic operation is needed. There are four AND gates in the chip, we can use one or all gates simultaneously.

2. The chip is used in systems where high speed AND operation is needed. As mentioned earlier the gates in the chip are designed by SCHOTTKY TRANSISTORS to make the switching delays of gates less. Because of this the chip can be used for high speed AND operations.

3. 74LS08 is one of cheapest IC present in market for AND logic operation. It is really popular and is available everywhere.

4. The chip provides TTL outputs which are needed in some systems.