SN74HCS86PWR - Quad 2-Input XOR Schmitt-Trigger Gate | TI
N.º de pieza: SN74HCS86PWR ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $0.42 | $0,42 |
| 10 | $0.38 | $3,80 |
| 100 | $0.28 | $28,00 |
| 500 | $0.19 | $95,00 |
| 1.000 | $0.13 | $130,00 |
SN74HCS86PWR Descripción general
A logic gate is the fundamental building block of digital electronics, performing Boolean operations on binary inputs. The XOR gate outputs a high level only when an odd number of its inputs is high, making it essential for adders, parity generators and checkers, comparators, and programmable inverters. The SN74HCS86 belongs to the TI HCS family, which pairs CMOS low static power with Schmitt-trigger inputs for superior noise immunity - a drop-in upgrade path for the classic 74HC86.
Key features include the wide 2V to 6V operating range, Schmitt-trigger inputs with hysteresis (typically around 0.5V at a 5V supply), CMOS technology for near-zero quiescent current, and balanced output drive. Per the TI datasheet, the device can drive loads up to 50 pF while meeting all datasheet specifications; larger capacitive loads are not recommended.
Technically, the CMOS architecture provides high noise margins and negligible static current, while the Schmitt inputs use internal positive feedback to create hysteresis. This makes the part tolerant of inputs from mechanical switches, quadrature encoders, RC oscillators, and long wires with slow rise times - conditions that would cause a standard HC86 input to oscillate or multi-trigger.
Typical applications include signal conditioning of noisy sensor or switch inputs, parity generation in serial communication links, crystal and RC oscillator circuits, frequency doubling (XOR with a delayed copy of itself), and digital comparator functions in industrial control, instrumentation, and automotive modules.
Design tip: tie all unused inputs to a defined logic level (GND or VCC) to prevent floating nodes, and keep total capacitive load per output at or below 50 pF; add a buffer such as SN74LVC244A if heavier loads are required. Pricing references below are as of 2026-08-30.
Alternativas directas para SN74HCS86PWR — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con SN74HCS86PWR (mismo factor de forma y huella) — difiere en Input Type, Logic Function, Operating Temperature, Package.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
SN74HCS86QPWRQ1
✅ Sustitución directa✓ En stock
$0.17 / unidad
Ver hoja de datos →SN74HC86PWR
⚡ Mismo encapsulado ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
CD74HC86PWR
⚡ Mismo encapsulado ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
SN74LVC86APWR
⚡ Mismo encapsulado ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
74HC86PW,118
⚡ Mismo encapsulado ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
SN74HCS86PWR Valores máximos y características eléctricas
| Logic Function | XOR (Exclusive OR) |
| Number of Gates | 4 |
| Inputs per Gate | 2 |
| Input Type | Schmitt Trigger |
| Supply Voltage Range | 2 V to 6 V |
| Technology Family | HCS (CMOS with Schmitt-trigger inputs) |
| Temperatura de funcionamiento | -40C to +125C |
| Output Drive Capability | Up to 50 pF load per output |
| Encapsulado | TSSOP (PW), 14 pins |
| Tipo de montaje | Surface Mount |
| Estado RoHS | Compliant |
Configuración de pines de SN74HCS86PWR
| Pin 1 | 1A — Gate 1 input A |
| Pin 2 | 1B — Gate 1 input B |
| Pin 3 | 1Y — Gate 1 output (1A XOR 1B) |
| Pin 4 | 2A — Gate 2 input A |
| Pin 5 | 2B — Gate 2 input B |
| Pin 6 | 2Y — Gate 2 output (2A XOR 2B) |
| Pin 7 | GND — Ground |
| Pin 8 | 3Y — Gate 3 output (3A XOR 3B) |
| Pin 9 | 3A — Gate 3 input A |
| Pin 10 | 3B — Gate 3 input B |
| Pin 11 | 4Y — Gate 4 output (4A XOR 4B) |
| Pin 12 | 4A — Gate 4 input A |
| Pin 13 | 4B — Gate 4 input B |
| Pin 14 | VCC — Power supply, 2V to 6V |
Aplicaciones típicas
SN74HCS86PWR es adecuado para 6 aplicacións: Switch and Sensor Signal Conditioning, Quadrature Encoder Interfacing, Parity Generation and Checking, RC and Crystal Oscillator Circuits, Frequency Doubling and Edge Detection, Digital Comparators and Control Logic.
Switch and Sensor Signal Conditioning
Mechanical switches, reed relays, and analog-comparator outputs produce slow, bouncy, or noisy edges. The SN74HCS86's Schmitt-trigger inputs provide roughly 0.5V hysteresis at 5V, squaring up these signals into clean CMOS logic levels without external comparators. Each XOR gate also enables edge/transition detection when one input is fed a delayed copy of the signal. With a 2V-6V supply range and -40C to +125C rating, it integrates directly into 3.3V and 5V industrial front ends, reducing BOM count and improving noise margins in factory-floor environments.
Recomendado
Quadrature Encoder Interfacing
Quadrature encoders from motors and knobs output A/B channels with slow edges over long cables. The SN74HCS86 cleans both channels with its Schmitt-trigger inputs, then XOR combinations of A, B and delayed copies yield direction and count pulses. Its 2V-6V range covers both 3.3V and 5V encoder supplies, and 50 pF output drive connects directly to MCU timer inputs. The TSSOP-14 package fits compact motor-control boards, and CMOS static current keeps idle power negligible in battery-powered hand-held instruments.
Recomendado
Parity Generation and Checking
Serial links and memory buses use parity to detect single-bit errors. Cascading the four XOR gates of the SN74HCS86 computes odd/even parity over data words: XOR of all bits yields a 1 when the count of ones is odd. Schmitt inputs make the circuit robust to ringing on board interconnect, while the CMOS core adds near-zero static power. The 2V-6V range spans 3.3V and 5V logic domains, allowing level-tolerant parity trees in mixed-voltage systems; 50 pF drive covers typical fanout to downstream latches or MCU pins.
Recomendado
RC and Crystal Oscillator Circuits
One XOR gate wired with an RC network forms a relaxation oscillator, and the Schmitt-trigger inputs are exactly what such circuits need to snap cleanly between thresholds. The SN74HCS86's hysteresis (about 0.5V at 5V) sets a well-defined oscillation window, while CMOS symmetry keeps duty cycle reasonable. Remaining gates serve as buffering or frequency doubling (XOR with its own delayed copy yields a pulse on every edge). Operating from 2V-6V, the same design scales across battery and logic supplies, and the tiny TSSOP-14 saves board area.
Recomendado
Frequency Doubling and Edge Detection
XOR of a clock with a delayed copy of itself produces a pulse on every rising and falling edge, doubling effective frequency. The SN74HCS86 excels here because its Schmitt inputs accept the RC-delayed edges without oscillating, a common failure mode of standard HC86 implementations. With four gates per package, one device provides delay, XOR, and buffering stages. Propagation timing stays stable across the 2V-6V supply and -40C to +125C range, suiting clock-multiplication stubs in instrumentation and motor-drive control cards.
Recomendado
Digital Comparators and Control Logic
XOR outputs go high only when corresponding bits differ, making the SN74HCS86 the core of magnitude/equality comparators: XOR bit pairs, then OR/NOR the results. Its Schmitt inputs tolerate long backplane or cable interconnects, and the -40C to +125C rating suits unconditioned industrial and automotive-adjacent modules (use the Q1 variant for full AEC-Q100 programs). The 2V-6V range bridges 3.3V sensors with 5V relay-drive logic, and near-zero static current keeps standby draw minimal in always-on monitoring nodes.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para SN74HCS86PWR — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | SN74HCS86QPWRQ1 | SN74HC86PWR | SN74LVC86APWR | 74HC86PW,118 |
|---|---|---|---|---|---|
| Package | TSSOP-14 (PW) | TSSOP-14 (PW) - same | TSSOP-14 (PW) - same | TSSOP-14 (PW) - same | TSSOP-14 (PW) - same |
| Brand | Texas Instruments | 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 | Quad 2-input XOR |
| Schmitt-Trigger Inputs | Yes | Yes | No | No | No |
| Supply Voltage | 2 V to 6 V | 2 V to 6 V | 2 V to 6 V | 1.65 V to 3.3 V | 2 V to 6 V |
| Operating Temperature | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C |
| Automotive Grade (AEC-Q100) | No (standard) | Yes (Q1) | No | No | No |
Diferenciadores clave
- Schmitt-trigger inputs with hysteresis on all 8 inputs (frente a SN74HC86PWR)
- Wide 2V-6V supply range covering 3.3V and 5V systems (frente a SN74LVC86APWR)
- Automotive-qualified sibling available (frente a SN74HCS86QPWRQ1)
Notas de diseño
Tie all unused inputs to GND or VCC - floating CMOS inputs cause oscillation and excess static current. The Schmitt inputs of the SN74HCS86 tolerate slow edges, but unused gate outputs should still be left open or used deliberately. Never leave an output shorted to a rail.
Per the TI datasheet, keep total capacitive load at or below 50 pF per output to meet timing and drive specifications. For heavier loads or long traces, insert a buffer such as the SN74LVC244A. The Schmitt inputs tolerate rise times that would multi-trigger a standard HC86, making them ideal for switch and cable inputs.
Decouple VCC (pin 14) with a 100 nF ceramic capacitor placed within a few millimeters of the pin, plus bulk capacitance shared per board. Although HCS static current is negligible, switching all four gates simultaneously produces dynamic current spikes; a solid ground return (pin 7) minimizes ground bounce in mixed-logic layouts.
Información de cumplimiento
RoHS compliant per distributor listings; use SN74HCS86QPWRQ1 for AEC-Q100 qualified automotive applications.
