MC14071BDR2G - Quad 2-Input OR Gate, 3-18V CMOS, SOIC-14 | onsemi
N.º de pieza: MC14071BDR2G ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $0.46 | $0,46 |
| 10 | $0.39 | $3,90 |
| 100 | $0.3 | $30,00 |
| 500 | $0.22 | $110,00 |
| 1.000 | $0.18 | $180,00 |
| 2.500 | $0.15 | $375,00 |
MC14071BDR2G Descripción general
An OR gate is a fundamental combinational logic device that outputs a logic HIGH whenever at least one of its inputs is HIGH; four such gates share a common power rail in the MC14071B, forming part of the 4000-series CMOS logic family. This family sits within the broader hierarchy: logic gate -> combinational logic -> digital IC -> integrated circuit -> semiconductor. The MC14071BDR2G is widely used as a glue-logic building block in mixed-signal systems, replacing discrete transistors and providing reliable logic OR-ing where board-level routing is critical.
Key features include extremely low quiescent supply current (typically 0.5 nA per gate at 5 V), high noise immunity of 45% of VDD minimum, and 5 V, 10 V, and 15 V parametric ratings per JEDEC JESD 20. Output drive is symmetric CMOS with balanced rise/fill characteristics and ESD protection on all inputs. The MC14071BDR2G's buffered-output architecture provides consistent fan-out and clean logic levels across the supply range, while inputs are diode-protected against over-voltage transients.
The MC14071BDR2G uses a complementary MOS (CMOS) process in which P-channel pull-ups and N-channel pull-downs are co-integrated; this yields the family's hallmark near-zero quiescent current (current flows only during switching), making it ideal for battery-powered equipment. Designers can cascade gates for combinatorial logic, use the part as a logic-level translator between 5 V and 12 V domains, or wire OR multiple interrupt sources together for MCU monitoring. The 14-SOIC footprint is footprint-compatible with the rest of the MC140xx family, allowing easy migration to NAND, AND, NOR or XOR equivalents when board real-estate is reserved.
Typical applications for the MC14071BDR2G include industrial control logic, automotive body electronics, battery-powered instrumentation, alarm-system OR-tying, and general-purpose glue logic in mixed-signal PCBs. The wide 3-18 V supply tolerates 12 V and 15 V analog rails, simplifying designs that interface to legacy analog sections.
When designing with this part, observe standard CMOS handling precautions: tie all unused inputs to VDD or GND to prevent floating-input oscillation and extra current draw. The MC14071BDR2G is a direct functional replacement for the legacy CD4071B from Texas Instruments and is drop-in compatible on most 14-pin SOIC layouts.
Alternativas directas para MC14071BDR2G — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
MC14071BDG
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
MC14071BDR2
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
CD4071BM96
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
CD4071BMTR
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
CD4071BCN
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MC14071BFELG
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
MC14071BDR2G Valores máximos y características eléctricas
| Logic Type | OR Gate |
| Number of Circuits | 4 |
| Number of Inputs per Gate | 2 |
| Logic Family | 4000/14000 Series CMOS (B-suffix) |
| Supply Voltage (VDD) | 3 V to 18 V |
| Quiescent Current (typ) | 0.5 nA per gate at 5 V |
| Temperatura de funcionamiento | -55 C to +125 C |
| Output Drive | Symmetric CMOS, balanced rise/fall |
| Noise Immunity (typ) | 45% of VDD (JEDEC JESD 20) |
| Input Protection | ESD-protected, diode-clamped inputs |
| Encapsulado | SOIC-14 (D suffix), 3.90 mm width, 1.75 mm height |
| Tipo de montaje | Surface Mount |
| Nivel MSL | 1 |
| Estado RoHS | Compliant |
| Lead-Free | Yes |
| Packing | Tape and Reel (R2 suffix), 2500 pcs/reel |
Configuración de pines de MC14071BDR2G
| Pin 1 | 1A — OR gate 1 input A |
| Pin 2 | 1B — OR gate 1 input B |
| Pin 3 | 1Y — OR gate 1 output |
| Pin 4 | 2A — OR gate 2 input A |
| Pin 5 | 2B — OR gate 2 input B |
| Pin 6 | 2Y — OR gate 2 output |
| Pin 7 | VSS — Ground (0 V) |
| Pin 8 | 3Y — OR gate 3 output |
| Pin 9 | 3A — OR gate 3 input A |
| Pin 10 | 3B — OR gate 3 input B |
| Pin 11 | 4Y — OR gate 4 output |
| Pin 12 | 4A — OR gate 4 input A |
| Pin 13 | 4B — OR gate 4 input B |
| Pin 14 | VDD — Supply voltage (3 V to 18 V) |
Aplicaciones típicas
MC14071BDR2G es adecuado para 6 aplicacións: Industrial Control Logic, Battery-Powered Instrumentation, Automotive Body Electronics, Alarm and Security Systems, Glue Logic in Mixed-Signal PCBs, Logic-Level Translation Between Functions.
Industrial Control Logic
The MC14071BDR2G's 3 V to 18 V supply tolerance and 45% of VDD noise immunity make it ideal for industrial 24 V / 15 V logic boards that experience electrical noise from motor drives and solenoids. Its near-zero quiescent current (0.5 nA per gate at 5 V) suits always-on monitoring rails in PLCs and process controllers. In typical use the four OR gates combine alarm-flag lines, opto-isolator outputs, or contact-debounce signals into a single interrupt pin for the host MCU. Pin-compatibility with the CD4071 family lets engineers retrofit existing 14-SOIC footprints without board rework, while the buffered CMOS output ensures symmetric fan-out across cascaded logic.
Recomendado
Battery-Powered Instrumentation
Battery-powered test equipment benefits from the MC14071BDR2G's sub-nanoampere quiescent current, which contributes almost nothing to standby drain. The 3 V minimum supply lets the part run directly from a pair of AA cells or a CR2032 with no boost converter. Engineers typically use the OR gate to combine low-voltage-detector flags and button-debounce events into a wake-up signal for a low-power MCU. The 14-SOIC footprint is footprint-compatible with the CD4071 family, so retrofitting older 5 V or 9 V designs is straightforward and the part retains operation down to brown-out voltages.
Recomendado
Automotive Body Electronics
Automotive body modules use the MC14071BDR2G to OR-merge door-switch, seat-belt, and key-in-ignition signals before driving a single MCU input, simplifying wiring harness design. The wide 3 V to 18 V supply handles load-dump-tolerant 12 V automotive rails, and the diode-clamped inputs protect against inductive transients from relay coils. The part is not AEC-Q100 qualified, so designers typically use it in non-safety body-comfort modules where automotive-grade qualification is not mandated. The 14-SOIC footprint matches the rest of the MC140xxB family, allowing engineers to combine OR, AND, NAND, and NOR gates on the same PCB layout.
Recomendado
Alarm and Security Systems
The MC14071BDR2G is widely used in burglar-alarm and fire-alarm panels to combine multiple sensor outputs (PIR, smoke, glass-break) into a single alarm-trigger line. Its 45% of VDD noise immunity rejects false triggers caused by long cable runs picking up mains or RF interference, while the wide VDD range works directly from backup-battery 12 V rails. Engineers typically wire the four gates in parallel-cascade for 8-input OR detection or use them as isolated latches for individual zone status. The 14-SOIC footprint is shared with the CD4071 family, so replacement during service is straightforward.
Recomendado
Glue Logic in Mixed-Signal PCBs
Mixed-signal boards frequently need a few OR functions to combine digital flags from analog sub-systems (over-temperature, under-voltage, channel-ready) without spinning a CPLD or FPGA. The MC14071BDR2G fits this role with its 14-SOIC footprint and standard 4000-series pinout, which is compatible with the entire MC14xx catalog. Engineers use it for level shifting between 3.3 V digital and 12 V analog sections since the wide VDD handles both rails directly. The buffered CMOS output provides clean logic levels for downstream MCUs without additional buffering, while the diode-clamped inputs tolerate 18 V transients on legacy analog buses.
Recomendado
Logic-Level Translation Between Functions
The MC14071BDR2G's wide 3 V to 18 V supply allows it to bridge logic levels between 3.3 V microcontroller GPIO and 5 V / 12 V analog rails. Because the CMOS inputs recognize VIH at 70% of VDD and VIL at 30% of VDD, the gate will accept 3.3 V logic when powered from 5 V or above, making it ideal for level translation without dedicated translator ICs. Designers commonly use it to OR multiple 3.3 V interrupt lines into a 5 V MCU input, or to convert 12 V sensor flags into 3.3 V logic for low-voltage controllers. The 14-SOIC footprint keeps board real estate high and is shared across the MC140xx family for layout reuse.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para MC14071BDR2G — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | MC14071BDG | MC14071BDR2 | CD4071BM96 | CD4071BMTR | CD4071BCN |
|---|---|---|---|---|---|---|
| Brand | onsemi | onsemi | onsemi | Texas Instruments | Texas Instruments | NXP Semiconductors |
| Package | 14-SOIC (D suffix) | 14-SOIC (same) | 14-SOIC (same) | 14-SOIC (same) | 14-SOIC (same) | 14-SOIC (same) |
| Logic Function | Quad 2-Input OR | Quad 2-Input OR | Quad 2-Input OR | Quad 2-Input OR | Quad 2-Input OR | Quad 2-Input OR |
| Supply Voltage | 3 V to 18 V | 3 V to 18 V | 3 V to 18 V | 3 V to 18 V | 3 V to 18 V | 3 V to 18 V |
| Logic Family | 4000/14000 CMOS B-suffix | 4000/14000 CMOS B-suffix | 4000/14000 CMOS B-suffix | CD4000 CMOS | CD4000 CMOS | CD4000 CMOS |
| Quiescent Current (typ) | 0.5 nA/gate at 5 V | 0.5 nA/gate at 5 V | 0.5 nA/gate at 5 V | 0.5 nA/gate at 5 V | 0.5 nA/gate at 5 V | 0.5 nA/gate at 5 V |
| Operating Temperature | -55 C to +125 C | -55 C to +125 C | -55 C to +125 C | -55 C to +125 C | -55 C to +125 C | -40 C to +85 C |
| Pin-to-Pin Compatible | Yes (JEDEC JESD 20) | Yes | Yes | Yes | Yes | Yes (per JEDEC JESD 20) |
| Reel Quantity | 2500 (R2) | Tube (55/tube) | 2500 | 2500 | 2000 | Tube |
Diferenciadores clave
- Wide 3 V to 18 V supply covers both 3.3 V microcontrollers and 12 V/15 V analog rails without level translators (frente a 74HC32 (TI))
- Sub-nanoampere quiescent current extends battery life in standby applications (frente a CD4071BM96 (TI))
- Onsemi B-suffix series guarantees 45% of VDD noise immunity per JEDEC JESD 20 (frente a CD4071BCN (NXP, industrial temp range))
Notas de diseño
Always tie unused inputs of the MC14071BDR2G to VDD or VSS. Floating CMOS inputs drift into the linear region and draw excess quiescent current (often microamps instead of nanoamps), degrading noise immunity. Tie directly to the supply rail rather than through a resistor to avoid oscillation during fast transients. This single rule typically eliminates 90% of field failures in 4000-series CMOS designs.
Place a 100 nF decoupling capacitor as close as possible to the VDD pin (pin 14) of the MC14071BDR2G. Although the part is low-current, the supply pin shares switching transients from all four gates; without local decoupling, the supply rail can ring during simultaneous gate transitions and inject noise into nearby analog sections. Use a wide VDD trace or pour to minimize inductance, especially in mixed-signal boards.
When using the MC14071BDR2G to OR-merge inputs from long cables (alarm panels, industrial I/O), add a small RC filter (e.g., 10 kohm + 100 pF) on each input to reject high-frequency noise. The 4000-series noise immunity of 45% of VDD helps, but the inputs are diode-clamped and can be damaged by sustained over-voltage transients; a series resistor and clamp diode per input provides robust protection in industrial environments with motor or relay switching.
Información de cumplimiento
RoHS compliant per onsemi product page. Not AEC-Q100 qualified - not intended for automotive safety applications. Active lifecycle status as of 2026-10-05. Halogen-free status not explicitly listed in verified data; refer to onsemi for current halogen-free certification.
