SN74HC11 Triple 3-Input AND Gate IC
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Prices updated: 13 Oct 2026
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About this product
The SN74HC11 is a CMOS IC with three independent 3-input positive AND gates, where each output is high only when all three of its inputs are high. It is used in digital logic designs to combine enable signals, qualify control lines and build general-purpose logic in breadboard projects.
Specifications
- Gates
- 3 x 3-input AND
- Logic type
- Positive AND
- Logic family
- HC (CMOS)
- Supply voltage
- 2 V to 6 V
- Package
- DIP-14
Frequently asked questions
What should I do with an unused input on an AND gate?
Tie it to VCC so it does not affect the output. Leaving it floating can cause unstable behaviour and extra current draw.
Can I use it at 3.3 V?
The supply range is 2 V to 6 V, so it can operate at 3.3 V. Make sure the logic levels of the driving and receiving devices match.
