SN74HCS86PWR - Quad 2-Input XOR Schmitt Trigger | TI
MPN: SN74HCS86PWR β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0.32 | $0.32 |
| 10 | $0.29 | $2.90 |
| 100 | $0.22 | $22.00 |
| 500 | $0.18 | $90.00 |
| 1,000 | $0.15 | $150.00 |
Drop-in alternatives for SN74HCS86PWR β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
SN74HC86PW
β Drop-Inπ Reference alternative (not in catalog)
SN74AHC86PW
β Drop-Inπ Reference alternative (not in catalog)
SN74HC86-Q1
β Drop-Inπ Reference alternative (not in catalog)
74HC86D
β Drop-Inπ Reference alternative (not in catalog)
TC74HC86AP
β Drop-Inπ Reference alternative (not in catalog)
MC74HC86ADG
β Drop-Inπ Reference alternative (not in catalog)
SN74HCS86PWR Maximum Ratings & Electrical Characteristics
| Logic Function | XOR (Exclusive OR) |
| Number of Channels | 4 |
| Inputs per Gate | 2 |
| Schmitt Trigger Input | Yes |
| Supply Voltage Range | 2 V to 6 V |
| Technology Family | HCS (CMOS) |
| Operating Temperature | -40C to +125C |
| Package | 14-TSSOP (PW) |
| Mounting Type | Surface Mount |
| Max Capacitive Load | 50 pF (per datasheet specs) |
| Input Type | Schmitt Trigger |
| Output Type | Push-Pull CMOS |
| Packaging | Tape & Reel (PWR suffix) |
| RoHS Status | Compliant |
| Propagation Delay | [DATA_NEEDED: propagation delay] |
SN74HCS86PWR Pin Configuration
| Pin 1 | 1A β Gate 1 input A |
| Pin 2 | 1B β Gate 1 input B |
| Pin 3 | 1Y β Gate 1 output Y |
| Pin 4 | 2A β Gate 2 input A |
| Pin 5 | 2B β Gate 2 input B |
| Pin 6 | 2Y β Gate 2 output Y |
| Pin 7 | GND β Ground |
| Pin 8 | 3Y β Gate 3 output Y |
| Pin 9 | 3A β Gate 3 input A |
| Pin 10 | 3B β Gate 3 input B |
| Pin 11 | 4Y β Gate 4 output Y |
| Pin 12 | 4A β Gate 4 input A |
| Pin 13 | 4B β Gate 4 input B |
| Pin 14 | VCC β Power supply, 2V to 6V |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
SN74HCS86PWR is suitable for 6 applications: Noisy Signal Conditioning, Parity Generation and Checking, RC and Crystal Oscillators, Frequency Doubling and Edge Detection, Digital Comparators and Control Logic, Programmable Inversion and Signal Gating.
Noisy Signal Conditioning
The SN74HCS86PWR excels at cleaning up noisy or slow-edged signals because its Schmitt-trigger inputs add hysteresis (about 0.5V at 5V supply). Mechanical switches, photointerrupters, and long sensor wires produce edges that would cause a standard HC86 input to oscillate; the HCS86 converts them into single, fast CMOS transitions. Place the gate at the signal entry point with a defined pull-up/pull-down, and it doubles as a XOR parity or inversion stage in the same footprint.
Recommended
Parity Generation and Checking
XOR trees are the standard method for computing parity bits in serial links and memory interfaces. The four independent XOR gates in one SN74HCS86PWR package let designers build 4-to-8-input parity trees on a single footprint, operating from 2V to 6V across -40C to +125C. Because outputs drive up to 50 pF within datasheet specifications, the device handles backplane-level fan-out. In communication links, the Schmitt inputs also tolerate slow edges on the incoming data line without retriggering.
Recommended
RC and Crystal Oscillators
The SN74HCS86PWR is well suited to RC relaxation oscillators because Schmitt inputs switch at defined thresholds, producing stable square-wave oscillation from a simple resistor-capacitor network. One gate forms the oscillator; a second can buffer or XOR the output for frequency doubling. Hysteresis prevents the input from hovering in an undefined linear region, improving oscillator start-up reliability at 3.3V and 5V supplies. Keep the RC node impedance moderate to avoid leakage-induced frequency drift across the -40C to +125C range.
Recommended
Frequency Doubling and Edge Detection
XORing a digital signal with a delayed copy of itself produces a pulse on every edge, effectively doubling the frequency or creating edge-detect strobes. The SN74HCS86PWR provides both the XOR function and clean Schmitt input shaping in a single 14-TSSOP package: use one gate to condition the input edge, a second as an RC delay element, and a third as the XOR combiner. The 2V-6V supply range supports both 3.3V and 5V timer chains, and 50 pF drive capability covers typical downstream counter inputs.
Recommended
Digital Comparators and Control Logic
XOR gates perform bit-wise comparison: any XOR output going high signals a mismatch between two buses. A single SN74HCS86PWR compares 2 bits per package (4 bits with gating of pairs), and its CMOS inputs draw negligible static current in large comparison networks. Schmitt inputs add robustness when comparing signals generated across long cables in factory environments, where slow edges are common. The device operates reliably from -40C to +125C, covering industrial cabinet temperature extremes without derating.
Recommended
Programmable Inversion and Signal Gating
Because XOR with a logic-high input inverts and XOR with logic-low passes through, the SN74HCS86PWR serves as a programmable inverter or enable-gated signal path controlled by a microcontroller GPIO. This is useful in polarity-selectable interfaces and clock-gating schemes. The Schmitt input keeps the control threshold defined even if the control line is filtered with an RC for glitch immunity. With a 2V-6V supply range, one design works across 3.3V and 5V logic domains, simplifying mixed-voltage system BOMs.
Recommended
Recommended Products Summary
Engineering reference data for SN74HCS86PWR β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | SN74HC86PW | SN74AHC86PW | 74HC86D |
|---|---|---|---|---|
| Package | 14-TSSOP (PW) | 14-TSSOP (PW) - same | 14-TSSOP (PW) - same | 14-TSSOP (SOT362) - same footprint |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | NXP Semiconductors |
| Logic Function | Quad 2-input XOR | Quad 2-input XOR | Quad 2-input XOR | Quad 2-input XOR |
| Schmitt-Trigger Inputs | Yes | No | No | No |
| Supply Voltage | 2 V to 6 V | 2 V to 6 V | 2 V to 5.5 V | 2 V to 6 V |
| Speed Family | HCS (CMOS) | HC (CMOS) | AHC (faster CMOS) | HC (CMOS) |
| Operating Temperature | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C |
| Pin Compatible on TSSOP-14 Footprint | Yes (reference) | Yes | Yes | Yes |
Key Differentiators
- Schmitt-trigger inputs with hysteresis (vs SN74HC86PW)
- Wide 2V to 6V single-supply operation (vs SN74AHC86PW)
- Same standard XOR pinout as legacy HC86 designs (vs 74HC86D)
Design Notes
Tie all unused gate inputs to GND or VCC - a floating CMOS input causes undefined outputs and increases static current. Do not drive inputs above VCC or below GND; the HCS input protection limits absolute maximum conditions. Remember this part is chosen for its Schmitt inputs: substituting an HC86 during shortage changes input-threshold behavior and may reintroduce chatter on slow edges.
Place a 100 nF ceramic decoupling capacitor within 5 mm of the VCC pin (pin 14) to GND (pin 7), with one bulk capacitor per board region. Keep oscillator RC nodes short to reduce parasitic pickup. Per TI datasheet guidance, keep total output capacitive load at or below 50 pF to stay within all datasheet specifications.
For signals arriving over cables or from RC networks, the Schmitt hysteresis provides noise margin roughly equal to the hysteresis band (approximately 0.5V at 5V). If input edges are extremely slow, add a series resistor to limit input current during transitions. For capacitive loads above 50 pF, follow the TI datasheet recommendation and add a dedicated buffer gate.
Compliance Information
RoHS compliance per TI standard-logic product listing; other compliance attributes not stated in provided data.
