What does the 74HC86 / 74LS86 do?
The 74×86 gives you four basic XOR gates that can be used individually. An XOR gate is a logic gate that outputs 1 (HIGH) if its inputs are NOT equal (one input is 1 and the other one is 0). In the truth table below, you can see what the output will be for any given input:
How To Use This Chip
Like every other chip in the 7400 series, this IC needs to be connected to power before you can use any of the XOR gates inside it. Most 7400 ICs support a VCC voltage of 5V. One difference between the HC and LS version of the chip is that the 74HC86 supports 2V to 6V, while the 74LS86 supports only 5V.
Once it’s connected, you can use any of the four basic XOR gates inside.
Output Current
74HC86:
Each gate output of the 74HC86 can sink or source 4 mA when powered with 5V.
74LS86:
HIGH-Level Output Current: 0.4 mA
LOW-Level Output Current: 8 mA
| Pin Name | Pin # | Type | Description |
|---|---|---|---|
| 1A | 1 | Input | Input to the first XOR gate. |
| 1B | 2 | Input | Input to the first XOR gate. |
| 1Y | 3 | Output | Output from the first XOR gate. |
| 2A | 4 | Input | Input to the second XOR gate. |
| 2B | 5 | Input | Input to the second XOR gate. |
| 2Y | 6 | Output | Output from the second XOR gate. |
| GND | 7 | Power | Connect to ground. |
| 3Y | 8 | Output | Output from the third XOR gate. |
| 3A | 9 | Input | Input to the third XOR gate. |
| 3B | 10 | Input | Input to the third XOR gate. |
| 4Y | 11 | Output | Output from the fourth XOR gate. |
| 4A | 12 | Input | Input to the fourth XOR gate. |
| 4B | 13 | Input | Input to the fourth XOR gate. |
| VCC | 14 | Power | Positive power supply. Connect to +5V power. |
Specifications
| Product Attribute | Attribute Value |
| Product Category: | Logic Gates |
| Product: | Single-Function Gates |
| Logic Function: | XOR |
| Logic Family: | LS |
| Number of Gates: | 4 Gate |
| Number of Input Lines: | 8 Input |
| Number of Output Lines: | 4 Output |
| High Level Output Current: | – 400 uA |
| Low Level Output Current: | 8 mA |
| Propagation Delay Time: | 20 ns |
| Supply Voltage – Max: | 5.25 V |
| Supply Voltage – Min: | 4.75 V |
| Minimum Operating Temperature: | 0 C |
| Maximum Operating Temperature: | + 70 C |
| Mounting Style: | Through Hole |
| Package/Case: | PDIP-14 |
| Function: | Devices contain four independent 2-input OR gates |
| Input Type: | TTL |
| Logic Type: | 2-Input Exclusive-OR |
| Number of Bits: | 4 bit |
| Operating Supply Current: | 50 uA |
| Operating Supply Voltage: | 5 V |
| Operating Temperature Range: | 0 C to + 70 C |
| Output Type: | TTL |
| Product Type: | Logic Gates |
| Quiescent Current: | 6.1 mA |
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