Overview: SN74HC86 Quad 2-Input Exclusive-OR Gate
The SN74HC86 from Texas Instruments is a high-speed CMOS logic device featuring four independent 2-input exclusive-OR (XOR) gates. Designed with advanced silicon-gate CMOS technology, this IC delivers the speed and output drive of standard bipolar logic families while consuming significantly less power. The device operates efficiently across a wide voltage range, making it suitable for a variety of power-sensitive logic applications.
Ideal for implementing arithmetic functions, parity checkers, and signal comparison operations, the SN74HC86 combines logic versatility with robust performance. Its TTL-compatible inputs allow easy interfacing with both TTL and CMOS families, offering flexible integration in mixed-logic designs.
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Key Electrical and Mechanical Parameters
| Parameter | Value | Unit |
|---|---|---|
| Function | Quad 2-Input XOR Gate | – |
| Logic Family | HC (High-Speed CMOS) | – |
| Package | DIP-14 | – |
| Input Type | CMOS / TTL Compatible | – |
| Output Type | CMOS | – |
| Supply Voltage Range | 2V to 6V | V |
| Propagation Delay (Vcc=5V) | 13 ns | ns |
| Pin Count | 14 | – |
| Operating Temperature Range | -40 to +85 | ??C |
| Mounting | Through Hole | – |
Why SN74HC86 Outperforms Standard Logic XOR Gates
Compared to traditional bipolar XOR logic gates, the SN74HC86 offers a superior balance of speed and efficiency. Its CMOS technology ensures ultra-low power consumption, particularly valuable in battery-powered or heat-sensitive systems.
Moreover, the extended supply voltage range (2V to 6V) allows engineers to integrate the chip into both legacy and modern logic systems without extensive voltage translation. The inclusion of four gates within one package reduces board space and component count.
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As shared in a technical evaluation by control system integrators, the SN74HC86 is commonly chosen in industrial automation systems requiring reliable signal comparison and timing operations. Engineers regard it as a go-to choice for its mix of simplicity and consistent timing performance. Available from IC Manufacturer, it remains a cornerstone component in digital design.
Detailed Technical Parameters
| Feature | Description |
|---|---|
| Device Type | Quad 2-Input XOR Gate |
| Logic Family | HC (High-Speed CMOS) |
| Inputs per Gate | 2 |
| Gates per Package | 4 |
| Propagation Delay | 13 ns @ 5V |
| Operating Voltage | 2V to 6V |
| Package Type | DIP-14 |
| Pin Count | 14 |
| Input Compatibility | TTL and CMOS |
| Temperature Range | -40??C to +85??C |
| Output Drive | Standard CMOS |
Typical Applications
- Parity generation and checking in communication systems
- Digital signal comparison in automation control loops
- Logical arithmetic operations in embedded processors
- Address decoding and timing logic in microprocessor units
- Pulse width comparison in analog-to-digital interface circuits
Frequently Asked Questions (FAQ)
What does the SN74HC86 offer over standard TTL XOR gates?
It offers faster switching speed and lower power usage, thanks to its high-speed CMOS structure, making it a more efficient drop-in replacement in logic designs.
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Can I use this IC in a 3.3V system?
Yes. With an operating voltage range from 2V to 6V, the SN74HC86 is well-suited for 3.3V and 5V systems, supporting both modern and legacy hardware designs.
Is this gate tolerant of mixed logic levels on input pins?
Yes. Inputs are compatible with both CMOS and TTL logic levels, allowing the IC to interface directly with a wide variety of signal sources.
Why is a quad-gate configuration advantageous?
It reduces IC count, saves board space, and streamlines circuit design by providing four independent XOR gates in one compact package.
Where is this gate commonly used?
It is often deployed in embedded control systems, industrial automation, communication hardware, and digital testing platforms requiring real-time logic evaluation.
