74HC7266D,653

Overview

The 74HC7266 is a high-speed Si-gate CMOS quad 2-input EXCLUSIVE-NOR gate with active push-pull outputs. It is pin compatible with low power Schottky TTL (LSTTL) and complies with JEDEC standard no. 7A. The device operates within a supply voltage range of 2.0 V to 6.0 V. At VCC = 5 V, the typical propagation delay is 11 ns with a load capacitance of 15 pF. Input capacitance is 3.5 pF, and power dissipation capacitance per gate is 17 pF.

Feature Summary

• Provides quad 2-input EXCLUSIVE-NOR logic function
• Features active push-pull output stage
• Pin compatible with low power Schottky TTL (LSTTL)
• Complies with JEDEC standard no. 7A

Applications

• Digital logic circuits requiring EXCLUSIVE-NOR functionality
• Systems interfacing with LSTTL components
• General purpose digital signal processing

Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm package type and tape/reel specifications. Ensure compliance with current environmental directives such as RoHS and REACH by checking the material declaration for the exact part number variant. Confirm that the component status remains active or suitable for new designs before procurement.

Selection Notes

Select this component when a quad 2-input EXCLUSIVE-NOR gate is required in a CMOS logic family. Consider its compatibility with LSTTL systems if interface matching is necessary. Evaluate the operating temperature range and supply voltage requirements against system constraints. Verify that the standard output capability meets the drive requirements of the connected loads.

Part Context

The 74HC7266 belongs to the 74HC series of high-speed silicon-gate CMOS logic devices manufactured by NXP Semiconductors. This series is designed for general-purpose digital applications and offers performance comparable to older technologies while maintaining lower power consumption. The device is part of a broader family of logic gates defined by JEDEC standards.

Replacement Considerations

Check for direct pin-compatible equivalents within the same logic family or from other manufacturers adhering to JEDEC standard no. 7A. Ensure that any substitute maintains the same EXCLUSIVE-NOR function, voltage range, and output characteristics.