7411 IC Triple 3-input AND Gate
What does the 74LS11 do?
The 74×11 gives you three 3-input AND gates that you can use individually. An AND gate is a logic gate that outputs 1 (HIGH) only if all of its inputs are 1 (HIGH). In the truth table below, you can see what the output will be for any given input:
The truth table for the AND gate
How To Use This Chip
The 74HC11 comes in a 14-pin package, and you need to connect it to power before you can use it. Most 7400 ICs support a VCC voltage of 5V. One difference between the HC and LS versions of the chip is that the 74HC11 supports 2V to 6V, while the 74LS11 only supports 5V.
The maximum current you can pull out of one output pin is 4 mA when the pin is high (sourcing) or 16 mA when the pin is low (sinking). This can differ between models, so check the datasheet of your model to verify.
Once you’ve connected it to power, you can use any of the three 3-input AND gates inside.
74×11 Pinout
The 74×11 has 14 pins and contains three 3-input AND gates laid out as shown in the pinout diagram below:
| Pin # | Type | Description |
|---|---|---|
| 1 | Input | Input to the first AND gate. |
| 2 | Input | Input to the first AND gate. |
| 3 | Input | Input to the second AND gate. |
| 4 | Input | Input to the second AND gate. |
| 5 | Input | Input to the second AND gate. |
| 6 | Output | Output from the second AND gate. |
| 7 | Power | Connect to ground (GND). |
| 8 | Output | Output from the third AND gate. |
| 9 | Input | Input to the third AND gate. |
| 10 | Input | Input to the third AND gate. |
| 11 | Input | Input to the third AND gate. |
| 12 | Output | Output from the first AND gate. |
| 13 | Input | Input to the first AND gate. |
| 14 | Power | Positive power supply (VCC). Connect to +5V power. |
Features/Specs:
- Logic Function: AND
- Logic Type: 3-Input AND
- Product Category: Logic Gates
- Product: Single-Function Gate
- Number of Bits: 3 Bit
- Number of Gates: 3 Gate
- Number of Input Lines: 3 Input
- Number of Output Lines: 1 Output
- High-Level Output Current: -0.4 mA
- Low-Level Output Current: 8 mA
- Operating Supply Voltage: 4.75 ~ 5.25V
- Operating Supply Current: 3.6 mA
- Operating Temperature Range: 0 ~ +60°C
- Input Type: TTL
- Output Type: TTL
- Mounting Style: Through Hole
- Package/Case: PDIP-14
