Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Integrated Circuits (ICs) > Logic > Gates and Inverters

Nexperia USA Inc. 74HC32BQ,115

Name: 74HC32BQ,115
Brand: Nexperia USA Inc.
SKU: 74HC32BQ,115
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: 74HC32BQ,115

Manufacturer:: Nexperia USA Inc.

Category:: Gates and Inverters

Package:: 14-VFQFN Exposed Pad

Datasheet:: 74HC32BQ,115.pdf

Description:: IC GATE OR 4CH 2-INP 14DHVQFN

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:445

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

74HC32BQ,115 from Nexperia is a quad 2-input OR gate in DHVQFN14 package (SOT762-1), operating from 2.0 V to 6.0 V supply, delivering CMOS-level input compatibility, symmetrical output impedance, balanced propagation delays (6–27 ns), and specified operation from −40 °C to +125 °C - used for digital logic combining, enable gating, and bus arbitration in industrial control and embedded interface circuits.

For engineers reviewing the 74HC32BQ,115 datasheet, 74HC32BQ,115 pinout, 74HC32BQ,115 application, or 74HC32BQ,115 equivalent, key selection criteria include supply voltage range (2.0–6.0 V), propagation delay at 4.5 V (8–23 ns), input/output voltage thresholds (VIH = 3.15 V min @ VCC = 4.5 V), thermal-enhanced QFN package footprint (2.5 × 3 mm), and compatibility with 5 V TTL logic systems via 74HCT32BQ variant.

Technical Context

This device implements four independent 2-input OR gates using standard CMOS silicon technology, with clamp diodes on all inputs enabling safe interfacing to voltages exceeding VCC when current-limiting resistors are used. Each gate exhibits identical electrical behavior with matched high/low propagation delays (tPHL ≈ tPLH) and transition times (tTHL ≈ tTLH).

It supports mixed-voltage system interfacing due to its wide VCC range and input clamping, while maintaining low ICC (≤40 μA at 125 °C) and high noise immunity (≥40 % of VCC). The DHVQFN14 package provides enhanced thermal performance over SO14 and TSSOP14 variants, with 9.6 mW/K derating above 98 °C.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage	2.0 V to 6.0 V - enables direct use in 3.3 V and 5 V systems without level shifters.
Propagation Delay	6 ns (typ) @ VCC = 6.0 V, CL = 50 pF - ensures timing predictability in high-speed combinational logic paths.
Input Threshold (VIH)	3.15 V min @ VCC = 4.5 V - guarantees reliable recognition of TTL-high signals in mixed-logic designs.
Output Drive	±4.0 mA @ VCC = 4.5 V - sufficient to drive multiple 74HC inputs or small capacitive loads (<50 pF).
Operating Temperature	−40 °C to +125 °C - qualified for under-hood industrial and extended-temperature embedded applications.
Power Dissipation	500 mW max @ Tamb ≤ 98 °C (DHVQFN14) - supports higher ambient operation than SO14/TSSOP with same thermal derating slope.
ESD Protection	HBM > 2000 V, CDM > 1000 V - reduces risk of field failure during board handling and assembly.

Pinout & Package

DHVQFN14 package (SOT762-1): 2.5 mm × 3.0 mm × 0.85 mm body, 14-terminal leadless construction with exposed thermal pad (non-soldered by default), 0.5 mm pitch, pin 1 index area marked on top surface.

Pin/Terminal	Circuit Role	Design Meaning
1	1A	First OR gate input A - accepts CMOS-level logic signals; clamped to protect against overvoltage.
2	1B	First OR gate input B - electrically identical to 1A; dual-input structure enables flexible Boolean combination.
3	1Y	First OR gate output Y - drives downstream logic with symmetrical rise/fall times (6–19 ns).
4	2A	Second OR gate input A - isolated from other gates; no internal crosstalk per functional diagram.
5	2B	Second OR gate input B - shares same VIH/VIL specs as 1A/1B; supports independent logic functions.
6	2Y	Second OR gate output Y - matches 1Y timing and drive strength; usable as parallel logic path.
7	GND	Ground reference - must be connected to system 0 V plane; thermal pad may remain floating or tied to GND.
8	3Y	Third OR gate output Y - identical electrical characteristics; enables three-gate fan-out without buffering.
9	3A	Third OR gate input A - positioned for compact PCB routing in 2.5 × 3 mm layout.
10	3B	Third OR gate input B - complements 3A; full quad functionality available without external components.
11	4Y	Fourth OR gate output Y - final logic output; completes set of four independent OR operations.
12	4A	Fourth OR gate input A - supports cascaded logic trees or status aggregation across subsystems.
13	4B	Fourth OR gate input B - enables 4-input OR function via inter-gate wiring (e.g., (A+B)+(C+D)).
14	VCC	Positive supply - decoupling capacitor (100 nF) recommended within 3 mm of pin for noise suppression.

Key Features

Feature	Design Value
Wide supply range	2.0 V to 6.0 V - eliminates need for separate voltage rails in multi-supply systems.
Input clamping diodes	Enables safe interface to signals up to VCC + 0.5 V using series resistors - avoids external protection components.
Symmetrical output impedance	Matched pull-up/pull-down strength ensures consistent rise/fall times and reduced signal distortion.
Latch-up immunity	Exceeds 100 mA per JESD78 Class II Level B - prevents destructive latch-up during transient overvoltage events.
Thermal-enhanced QFN	DHVQFN14 package delivers lower junction-to-board thermal resistance vs. SO14/TSSOP - improves reliability in sealed enclosures.

Applications

Industrial PLC I/O Expansion

Embedded Microcontroller Bus Arbitration

Use Scenario: Aggregating multiple sensor fault flags into a single interrupt line for a programmable logic controller.

IC Role / Device Role / Timing Role: Quad OR gate performing wired-OR logic summation with sub-25 ns worst-case delay at 5 V.

Use Value: Reduces component count versus discrete diode-OR networks while guaranteeing deterministic timing and ESD-hardened inputs.

Use Scenario: Resolving bus master priority among three peripheral controllers sharing a common data bus.

IC Role / Device Role / Timing Role: Combining enable signals from competing masters to generate a unified bus grant pulse.

Use Value: Eliminates race conditions through simultaneous evaluation of all inputs and nanosecond-level propagation consistency.

Automated Test Equipment Signal Conditioning

Medical Device Power-On Self-Test Logic

Use Scenario: Merging pass/fail outputs from four independent analog measurement channels into one system status indicator.

IC Role / Device Role / Timing Role: High-noise-immunity OR gate operating across −40 °C to +125 °C with <0.4 V VOL at 4 mA load.

Use Value: Ensures robust status reporting in electrically noisy lab environments without false triggers or timing jitter.

Use Scenario: Validating power rail sequencing integrity before releasing reset to safety-critical microcontrollers.

IC Role / Device Role / Timing Role: Final-stage logic combiner verifying all five monitored rails (3.3 V, 5 V, ±12 V, 24 V) are stable.

Use Value: Provides fail-safe startup control with guaranteed VIH margin (>1.5×) and latch-up immunity per JEDEC standards.

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad 2-input OR gate applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
74HCT32BQ,115	TTL-compatible inputs (VIH = 2.0 V min @ VCC = 4.5 V); otherwise identical pinout, package, and timing.	Required when interfacing legacy 5 V TTL outputs; not suitable for pure CMOS systems below 3 V.	Select when driving from 74LS/74F logic or microcontrollers with weak high-drive capability.
SN74LVC32APWR	3.3 V only (1.65–3.6 V), smaller X2SON14 (2 × 1.5 mm), lower ICC (10 μA typ), faster tpd (3.5 ns @ 3.3 V).	Optimized for ultra-low-power, space-constrained portable electronics; incompatible with 5 V systems.	Choose for battery-powered IoT nodes where size and quiescent current outweigh 5 V compatibility needs.

Compared with 74HC32BQ,115, the 74HCT32BQ,115 trades CMOS input threshold for TTL compatibility without altering footprint or thermal behavior, while SN74LVC32APWR sacrifices voltage flexibility and robustness for miniaturization and speed in 3.3 V domains.

Availability

74HC32BQ,115 is available at Aetrix Electronics and suitable for industrial automation, embedded computing, and medical diagnostics equipment requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74HC32BQ,115 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Nexperia is a global semiconductor expert focused on essential efficiency technologies, delivering high-performance logic, discrete, and MOSFET solutions optimized for reliability and manufacturability.

The 74HC32BQ,115 belongs to Nexperia's industry-standard HC logic family, designed specifically for robust, low-power, wide-voltage digital interfacing in industrial, automotive (non-safety), and consumer applications.

FAQ

Is the thermal pad on the 74HC32BQ,115 required to be soldered?

No - the exposed thermal pad (pin 7 GND area) has no electrical or mechanical requirement to be soldered. If connected, it must remain floating or be tied directly to the PCB ground plane. Soldering without proper thermal relief may cause solder voiding or package warpage during reflow.

Can 74HC32BQ,115 safely interface with 5 V inputs while powered from 3.3 V?

Yes - input clamp diodes allow connection of 5 V signals to any input (1A–4B) when a current-limiting resistor ≥1 kΩ is used. This protects the device from overvoltage while preserving logic levels, per Section 1 and Table 4 limiting values in the datasheet.

What is the maximum capacitive load this device can drive reliably?

At VCC = 4.5 V and Tamb = 25 °C, the device maintains specified VOL ≤ 0.26 V and VOH ≥ 3.98 V up to 50 pF load capacitance, as verified in dynamic characterization (Table 7). For heavier loads (>75 pF), propagation delay increases nonlinearly and output transition times degrade beyond 22 ns.

How does the DHVQFN14 package compare thermally to SO14 for continuous operation?

The DHVQFN14 (SOT762-1) offers 30 % lower junction-to-board thermal resistance than SO14 (SOT108-1), enabling 500 mW total power dissipation up to 98 °C before derating begins - versus 100 °C for SO14. This allows higher sustained power density in compact, sealed enclosures without forced airflow.

74HC32BQ,115 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: 74HC

Package/Case:: 14-VFQFN Exposed Pad

Packaging:: Tape & Reel (TR)

Product Status:: Active

Logic Type:: OR Gate

Number of Circuits:: 4

Number of Inputs:: 2

Features:: -

Voltage - Supply:: 2V ~ 6V

Current - Quiescent (Max):: 2 µA

Current - Output High, Low:: 5.2mA, 5.2mA

Input Logic Level - Low:: 0.5V ~ 1.8V

Input Logic Level - High:: 1.5V ~ 4.2V

Max Propagation Delay @ V, Max CL:: 15ns @ 6V, 50pF

Operating Temperature:: -40°C ~ 125°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 14-DHVQFN (2.5x3)

74HC32BQ,115 FAQ

1.How can I place an order for 74HC32BQ,115 through Aetrix?

Please submit a Request for Quotation (RFQ) for 74HC32BQ,115 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for 74HC32BQ,115 reliable?

The price and inventory of 74HC32BQ,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC32BQ,115 is usually 5 days.

3.What payment methods are accepted for 74HC32BQ,115?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC32BQ,115 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74HC32BQ,115?

74HC32BQ,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74HC32BQ,115 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for 74HC32BQ,115?

For technical support, including 74HC32BQ,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC32BQ,115 requirements.

6.How does Aetrix verify that 74HC32BQ,115 is sourced from the original manufacturer or authorized distributors?

All 74HC32BQ,115 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 74HC32BQ,115 meets industry standards.

7.What is the process for return or replacement of 74HC32BQ,115?

All 74HC32BQ,115 units undergo pre-shipment inspection (PSI). If there is an issue with 74HC32BQ,115, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The 74HC32BQ,115 part is unused and in its original packaging.

Return procedure for 74HC32BQ,115:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…

2026-08-11 LDO Regulator: Dropout Voltage, Noise, PSRR and Power Dissipation

LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…

2026-08-06 Conditional Access Module: CAM, CI/CI+ and DVB Security

Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…

2026-08-03 Electronic Component Obsolescence: EOL Risks, Replacement Options and Last-Time Buy Strategy

Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.

2026-07-29 18650 Battery: Voltage, Capacity, Charging and Pack Design

18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…

2026-07-27 Hall Effect Sensor: Working Principle, Types, Circuits and Applications

Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…

2026-07-20 Product Change Notification (PCN) in Electronic Components: Meaning and Supply Chain Response

Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…

2026-07-19 Blend Door Actuator: Symptoms, Location, Reset and Replacement Guide

A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…

2026-07-17 Raspberry Pi Alternatives: Chip-Level Comparison, Compatibility and Replacement Guide

Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…