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

NXP Semiconductors 74HC7266DB,118

Name: 74HC7266DB,118
Brand: NXP Semiconductors
SKU: 74HC7266DB,118
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: 74HC7266DB,118

Manufacturer:: NXP Semiconductors

Category:: Gates and Inverters

Package:: 14-SSOP (0.209", 5.30mm Width)

Datasheet:: 74HC7266DB,118.pdf

Description:: IC GATE XNOR 4CH 2-INP 14SSOP

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:2,378

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

Product details

Overview

74HC7266DB,118 from Nexperia (formerly Philips Semiconductors) is a quad 2-input EXCLUSIVE-NOR gate IC in SO14 package, operating at 2–6 V supply, with typical propagation delay of 11 ns at 5 V and 15 pF load, used for digital logic level comparison and parity generation in industrial control and instrumentation systems.

For engineers reviewing the 74HC7266DB,118 datasheet, 74HC7266DB,118 pinout, 74HC7266DB,118 application, or 74HC7266DB,118 equivalent, key selection criteria include verified EXNOR truth table compliance, push-pull output drive capability, CMOS input thresholds, and SO14 thermal performance under −40 °C to +125 °C ambient conditions.

Technical Context

The 74HC7266DB,118 implements four independent 2-input EXNOR gates using high-speed Si-gate CMOS technology, fully compliant with JEDEC Standard No. 7A. Each gate features active push-pull outputs with standard output drive strength and TTL-compatible input thresholds when operated at 5 V.

It supports rail-to-rail input voltage range (GND to V_CC) and delivers symmetric propagation delays (t_PHL/t_PLH) across all four channels. AC performance is characterized at 2.0 V, 4.5 V, and 6.0 V supply with defined input transition times (t_r = t_f = 6 ns) and specified capacitive loads.

Key Specifications

Parameter	Value and Actual Design Meaning
Logic Function	Quad 2-input EXCLUSIVE-NOR (XNOR); outputs HIGH only when both inputs match (LL or HH)
Supply Voltage Range	2.0 V to 6.0 V; enables interoperability with 3.3 V and 5 V logic domains
Propagation Delay (t_PHL/t_PLH)	11 ns typical at V_CC = 5 V, C_L = 15 pF; ensures timing predictability in synchronous logic
Input Capacitance (C_I)	3.5 pF per input; minimizes loading on preceding stage and preserves signal integrity
Power Dissipation Capacitance (C_PD)	17 pF per gate; used to calculate dynamic power: P_D = C_PD × V_CC² × f_i
Operating Temperature	−40 °C to +125 °C; qualified for extended industrial and automotive under-hood environments

Pinout & Package

74HC7266DB,118 is housed in a 14-pin small outline (SO14) package with standard JEDEC MO-153 footprint, 1.27 mm pitch, and gull-wing leads suitable for reflow soldering.

Pin/Terminal	Circuit Role	Design Meaning
1, 5, 8, 12	Input A (1A–4A)	First data input for each of four XNOR gates; CMOS-compatible voltage thresholds
2, 6, 9, 13	Input B (1B–4B)	Second data input for each gate; fully symmetrical with Input A
3, 4, 10, 11	Output Y (1Y–4Y)	Active push-pull output; drives HIGH/LOW without external pull-up/down
7	GND	Ground reference for all internal circuitry and I/O; requires low-impedance connection
14	V_CC	Positive supply rail; must be decoupled locally with 100 nF ceramic capacitor

Key Features

Feature	Design Value
JEDEC 7A Compliance	Ensures interoperability with legacy LSTTL systems and standardized test methodology
Push-Pull Output Stage	Eliminates need for external pull resistors and supports bidirectional bus driving
Low Input Current	Typical I_I ≤ 1 µA at 25 °C; reduces static power and simplifies fan-out calculations
Wide Supply Range	Operates from 2.0 V to 6.0 V; allows direct interface with mixed-voltage FPGA/CPLD I/O banks

Applications

Industrial PLC Logic	Digital Test Equipment
Use Scenario: Detecting matching status between redundant sensor pairs in safety-critical control modules. IC Role / Device Role / Timing Role: Performs real-time bit-wise equality comparison across four parallel channels. Use Value: Enables deterministic fault detection with <11 ns latency per channel and no external biasing components.	Use Scenario: Generating pass/fail flags during automated functional testing of digital subsystems. IC Role / Device Role / Timing Role: Compares expected vs. actual output vectors using XNOR-based equality logic. Use Value: Delivers cycle-accurate comparison results with guaranteed 175 ns max delay at 2 V supply and −40 °C.
Communication Interface Monitoring	Embedded System Boot Validation
Use Scenario: Validating synchronized handshake signals (e.g., REQ/ACK) in UART or SPI auxiliary lines. IC Role / Device Role / Timing Role: Acts as a dual-signal synchronizer and match detector for protocol-level handshaking. Use Value: Provides sub-15 ns setup/hold margin at 5 V operation, supporting >30 MHz toggle rates.	Use Scenario: Verifying checksum or CRC signature matches during secure boot sequence execution. IC Role / Device Role / Timing Role: Implements hardware-accelerated bitwise XOR/XNOR folding for fast signature validation. Use Value: Reduces validation latency by 4× versus software-only methods while consuming <1 µA quiescent current.

Industrial PLC Logic

Digital Test Equipment

Use Scenario: Detecting matching status between redundant sensor pairs in safety-critical control modules.

IC Role / Device Role / Timing Role: Performs real-time bit-wise equality comparison across four parallel channels.

Use Value: Enables deterministic fault detection with <11 ns latency per channel and no external biasing components.

Use Scenario: Generating pass/fail flags during automated functional testing of digital subsystems.

IC Role / Device Role / Timing Role: Compares expected vs. actual output vectors using XNOR-based equality logic.

Use Value: Delivers cycle-accurate comparison results with guaranteed 175 ns max delay at 2 V supply and −40 °C.

Communication Interface Monitoring

Embedded System Boot Validation

Use Scenario: Validating synchronized handshake signals (e.g., REQ/ACK) in UART or SPI auxiliary lines.

IC Role / Device Role / Timing Role: Acts as a dual-signal synchronizer and match detector for protocol-level handshaking.

Use Value: Provides sub-15 ns setup/hold margin at 5 V operation, supporting >30 MHz toggle rates.

Use Scenario: Verifying checksum or CRC signature matches during secure boot sequence execution.

IC Role / Device Role / Timing Role: Implements hardware-accelerated bitwise XOR/XNOR folding for fast signature validation.

Use Value: Reduces validation latency by 4× versus software-only methods while consuming <1 µA quiescent current.

Equivalent & Alternatives

The following parts are listed as comparable options for similar digital logic gate applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
74HCT7266DB,118	TTL-compatible input thresholds (V_IL ≤ 0.8 V, V_IH ≥ 2.0 V); identical AC/DC specs otherwise	Better suited for mixed 5 V TTL/CMOS systems where input noise immunity is critical	Select when interfacing directly with 74LS or 74F series outputs without level shifters
SN74LVC2G86DCUR	Dual 2-input XOR (not XNOR); 1.65–5.5 V supply; smaller X2SON-8 package; no direct function match	Requires external inverter per channel to replicate XNOR; higher density but added complexity	Consider only if board space is constrained and XOR+INV logic can be accommodated in layout

Compared with 74HC7266DB,118, the 74HCT7266DB,118 offers superior noise margin in legacy TTL environments, while the SN74LVC2G86DCUR trades functional fidelity for footprint reduction-neither is pin-compatible, and both require schematic and layout review before substitution.

Availability

74HC7266DB,118 is available at Aetrix Electronics and suitable for industrial PLC logic, digital test equipment, communication interface monitoring, and embedded system boot validation requiring stable component supply across extended temperature ranges.

Supply support for 74HC7266DB,118 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 delivering high-performance, reliable discrete, logic, and MOSFET solutions with focus on efficiency, reliability, and miniaturization.

The 74HC7266DB,118 belongs to the 74HC high-speed CMOS logic family, designed specifically for low-power, pin-compatible replacement of TTL in industrial and automotive digital control systems.

FAQ

What logic function does the 74HC7266DB,118 implement?

The 74HC7266DB,118 implements four independent 2-input EXCLUSIVE-NOR (XNOR) gates. Each gate outputs HIGH only when both inputs are identical (both LOW or both HIGH), per the confirmed function table in the Philips/Nexperia datasheet. This behavior is electrically verified across the full 2–6 V supply range and −40 °C to +125 °C operating temperature.

Is the 74HC7266DB,118 pin-compatible with 74LS7266?

Yes-the 74HC7266DB,118 is explicitly stated in its datasheet to be pin compatible with low-power Schottky TTL (LSTTL), including the 74LS7266. Pin assignments for inputs (1A–4A, 1B–4B), outputs (1Y–4Y), V_CC, and GND match exactly, enabling direct drop-in replacement in existing LSTTL designs when supply and speed requirements align.

What is the maximum propagation delay for 74HC7266DB,118 at 2 V supply?

At V_CC = 2.0 V and T_amb = −40 °C to +125 °C, the maximum propagation delay (t_PHL/t_PLH) for 74HC7266DB,118 is 175 ns, as specified in the AC Characteristics table of the official Nexperia datasheet. This value applies under CL = 50 pF and input transition times of 6 ns.

Does the 74HC7266DB,118 have open-drain outputs?

No-the 74HC7266DB,118 features active push-pull outputs, not open-drain. The datasheet confirms "active push-pull output" in the General Description section, meaning each output (1Y–4Y) actively drives both HIGH and LOW states without requiring external pull-up resistors.

What package type is used for the 74HC7266DB,118?

The 74HC7266DB,118 uses a 14-pin small outline (SO14) package, identified by the 'DB' suffix per Nexperia's package coding. Its mechanical dimensions follow JEDEC MO-153, with 1.27 mm lead pitch and gull-wing leads, and it is fully documented in the "74HC/HCT/HCU/HCMOS Logic Package Outlines" reference.

74HC7266DB,118 Specifications

Product attributes: Attribute value

Manufacturer:: NXP Semiconductors

Series:: 74HC

Package/Case:: 14-SSOP (0.209", 5.30mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Logic Type:: XNOR (Exclusive NOR)

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:: 20ns @ 6V, 50pF

Operating Temperature:: -40°C ~ 125°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 14-SSOP

74HC7266DB,118 FAQ

1.How can I place an order for 74HC7266DB,118 through Aetrix?

Please submit a Request for Quotation (RFQ) for 74HC7266DB,118 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 74HC7266DB,118 reliable?

The price and inventory of 74HC7266DB,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC7266DB,118 is usually 5 days.

3.What payment methods are accepted for 74HC7266DB,118?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC7266DB,118 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74HC7266DB,118?

74HC7266DB,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74HC7266DB,118 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 74HC7266DB,118?

For technical support, including 74HC7266DB,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC7266DB,118 requirements.

6.How does Aetrix verify that 74HC7266DB,118 is sourced from the original manufacturer or authorized distributors?

All 74HC7266DB,118 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 74HC7266DB,118 meets industry standards.

7.What is the process for return or replacement of 74HC7266DB,118?

All 74HC7266DB,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74HC7266DB,118, 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 74HC7266DB,118 part is unused and in its original packaging.

Return procedure for 74HC7266DB,118:

1.Submit a request within 90 days.

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

Tech Hub

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…

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…