Texas Instruments CD74HC7266M96G4

Overview

CD74HC7266M96G4 from Texas Instruments is a quadruple 2-input XNOR gate IC in SOIC-14 package, performing Y = A ⊕ B logic with buffered CMOS inputs, 2 V to 6 V supply operation, and –55°C to +125°C temperature range - used for phase difference detection and selectable inverter/buffer functions in timing-critical digital systems.

For engineers reviewing the CD74HC7266M96G4 datasheet, CD74HC7266M96G4 pinout, CD74HC7266M96G4 application, or CD74HC7266M96G4 equivalent, key selection considerations include propagation delay (23 ns typ @ 4.5 V), output drive capability (±4 mA), input transition time limit (500 ns max @ 4.5 V), and thermal resistance (133.6 °C/W for SOIC).

Technical Context

This device implements four independent positive-logic XNOR gates using balanced CMOS push-pull outputs capable of sourcing/sinking up to ±4 mA while maintaining VOH ≥ 3.98 V and VOL ≤ 0.33 V at 4.5 V supply. Input structure features standard high-impedance CMOS with 10 pF input capacitance and ±1 µA leakage at 6 V.

It operates across industrial and extended temperature ranges (–55°C to +125°C) with absolute maximum ratings including 7 V supply voltage and 150°C junction temperature. Propagation delay varies from 23 ns (typ, 4.5 V, CL = 50 pF) to 145 ns (typ, 2 V), and power dissipation capacitance is 33 pF per gate.

Key Specifications

Pinout & Package

CD74HC7266M96G4 is housed in a 14-pin SOIC (D) package measuring 8.70 mm × 3.90 mm with 1.27 mm lead pitch and 1.75 mm max height.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74HC7266N, CD74HC7266M96G4 offers surface-mount compatibility and smaller PCB area, while CD74HC7266M96 provides identical functionality with alternate packaging logistics - all three share identical logic behavior, timing, and DC parameters.

Availability

CD74HC7266M96G4 is available at Aetrix Electronics and suitable for phase-comparison circuits, programmable logic interfaces, level translation subsystems, and redundant signal monitoring applications requiring stable component supply across automotive, industrial, and aerospace programs.

Supply support for CD74HC7266M96G4 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

Texas Instruments is a global semiconductor company delivering analog and embedded processing solutions, with leadership in logic, power management, and precision analog technologies.

CD74HC7266M96G4 belongs to the CD74HC high-speed CMOS logic family, designed for low-power, wide-voltage-range digital interfacing and timing functions in demanding environmental conditions.

FAQ

What logic function does CD74HC7266M96G4 implement?

CD74HC7266M96G4 implements four independent 2-input XNOR gates, each performing the Boolean function Y = A ⊕ B in positive logic. Each gate outputs HIGH when both inputs match (both LOW or both HIGH) and LOW when inputs differ. This behavior is confirmed in the device function table and functional description sections of the TI datasheet SCHS219E.

What is the maximum recommended capacitive load for CD74HC7266M96G4 outputs?

The CD74HC7266M96G4 is characterized for optimal performance with capacitive loads ≤ 70 pF, as specified in the detailed design procedure section of the datasheet. While larger loads may be driven, exceeding this value increases propagation delay and risk of ringing; adding a series resistor is advised if >70 pF is unavoidable. The switching characteristics table assumes CL = 50 pF for timing measurements.

Can unused inputs on CD74HC7266M96G4 be left floating?

No - unused inputs on CD74HC7266M96G4 must never be left floating. The datasheet mandates termination to either VCC or GND to prevent undefined logic states, excessive current draw, or oscillation. A 10-kΩ pull-up or pull-down resistor is commonly used when dynamic control is needed; direct connection suffices for static configuration.

Does CD74HC7266M96G4 support 3.3 V operation?

Yes, CD74HC7266M96G4 fully supports 3.3 V operation within its rated 2 V to 6 V supply range. At 3.3 V, it meets all recommended operating conditions including VIH ≥ 2.31 V, VIL ≤ 0.99 V, and maintains guaranteed VOH/VOL levels. Electrical characteristics tables include data points at 2 V, 4.5 V, and 6 V - interpolation confirms robust 3.3 V functionality.

What is the thermal resistance (RθJA) of CD74HC7266M96G4 in its SOIC package?

The junction-to-ambient thermal resistance (RθJA) of CD74HC7266M96G4 in its SOIC-14 (D) package is 133.6 °C/W, as specified in Section 6.3 of the TI datasheet SCHS219E. This value applies to standard JEDEC 2-layer board conditions and must be used with the 150°C maximum junction temperature limit to calculate allowable power dissipation in thermal design.