The 74LS21 is an IC which contains two independent 4 input AND gate each of which performs the logic AND function.

74LS21 Dual 4-Input Positive and Gates IC

Features of 74LS21 Dual 4-Input Positive and Gates IC:

• Supply Voltage: 5.25 V.
• HIGH Level Input Voltage: 2 V.
• LOW Level Input Voltage: 0.8 V.
• HIGH Level Output Current: − 0.4 ma.
• LOW Level Output Current : 8 ma.
• Operating Temperature: 0 ~ 70 °C.

Applications of 74LS21 Dual 4-Input Positive and Gates IC:

• DIY projects.
• Electrical/Electronic projects.
• Consumer electronics.
• Telecommunications.
• General electronic circuits.

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