SN74LS266D Texas Instruments Integrated Circuit (Other) In Stock

Name: SN74LS266D
Brand: Texas Instruments
SKU: SN74LS266D
Availability: InStock

The SN74LS266D is a quad 2-input exclusive-NOR gate IC with open-collector outputs, featuring four independent XNOR logic gates in a 14-pin SOIC package. It operates with a maximum output sink current of 8 mA and 15 pF load capacitance. Available from authorized distributors with worldwide shipping.

ACTIVEIntegrated CircuitVerified May 2026

Package / Visual Reference

SN74LS266DOther

Quick Facts

Manufacturer: Texas Instruments
Package: Other
Pin Count: 14
Lifecycle: ACTIVE
Datasheet: SN74LS266D Datasheet PDF
Category: Integrated Circuit
Price: From $0.4600(MOQ 1)
Temp Range: ?°C to 70.0°C
RoHS: Compliant
Lead Time: 3–7 business days
Shipping: DHL Express · Worldwide

What are the key features of SN74LS266D?

Quad 2-input XNOR gates with open-collector outputs for flexible wired-AND bus configurations
Low-power Schottky (LS) logic family with high noise immunity and 8 mA maximum output sink current
14-pin SOIC (R-PDSO-G14) package enabling compact PCB layouts with RoHS-compliant (e4) construction

What is SN74LS266D used for?

The SN74LS266D is ideal for digital comparison circuits, parity generation and checking, and equality detection in data communications. Its open-collector outputs allow multiple gates to share a common bus line, making it suitable for wired-AND logic in microprocessor and memory interface designs. The device also finds use in error detection circuits and combinational logic applications requiring XNOR functionality.

What are the specifications of SN74LS266D?

Pbfree Code	Yes
YTEOL	15
Family	LS
JESD-30 Code	R-PDSO-G14
JESD-609 Code	e4
Load Capacitance (CL)	15pF
Logic IC Type	XNOR GATE
Max I(ol)	0.008A
Number of Functions	4
Number of Inputs	2
Output Characteristics	OPEN-COLLECTOR
Package Body Material	PLASTIC/EPOXY
Package Equivalence Code	SOP14,.25
Package Shape	RECTANGULAR
Package Style	SMALL OUTLINE
Packing Method	TUBE
Peak Reflow Temperature (Cel)	260
Power Supply Current-Max (ICC)	13mA
Prop. Delay@Nom-Sup	30ns
Propagation Delay (tpd)	30ns
Qualification Status	Not Qualified
Schmitt Trigger	NO
Supply Voltage-Max (Vsup)	5.25V
Supply Voltage-Min (Vsup)	4.75V
Supply Voltage-Nom (Vsup)	5V
Surface Mount	YES
Technology	TTL
Temperature Grade	COMMERCIAL
Terminal Finish	Nickel/Palladium/Gold (Ni/Pd/Au)
Terminal Form	GULL WING
Terminal Pitch	1.27mm
Terminal Position	DUAL
Time@Peak Reflow Temperature-Max (s)	30
Package	Other

Compliance & Regulatory

RoHS Status	Compliant
Lead-Free	Yes (Pb-Free)
Moisture Sensitivity Level	MSL 1
ECCN	EAR99
HTS Code	8542.39.00.90
Country of Origin	Malaysia

Where can I find the SN74LS266D datasheet?

SN74LS266D Datasheet Download

Official datasheet from Texas Instruments

What are equivalent replacements for SN74LS266D?

Compatible alternatives and drop-in replacements for SN74LS266D:

SN74LS266DG4Texas Instruments

XNOR Gate, LS Series, 4-Func, 2-Input, TTL, PDSO14

View Part →

Compare all alternatives & request quotes →

Frequently Asked Questions

What is the maximum output sink current for the SN74LS266D?

The SN74LS266D has a maximum output low sink current (I_OL) of 8 mA. This open-collector output allows the device to drive external loads directly, making it suitable for bus-driving and wired-AND configurations where multiple outputs share a common line.

What package type does the SN74LS266D use and how many pins does it have?

The SN74LS266D comes in a 14-pin Small Outline Integrated Circuit (SOIC) package, designated JESD-30 code R-PDSO-G14. This surface-mount package is compact and widely used in PCB designs requiring automated assembly, offering a good balance between board space and thermal performance.

Can the SN74LS266D be used in parity checking circuits?

Yes, the SN74LS266D is well-suited for parity checking and generation applications. With four independent 2-input XNOR gates, it can detect bit equality in data words, making it a fundamental building block in error detection and data validation circuits commonly used in digital communications and memory systems.

Is the SN74LS266D RoHS compliant?

Yes, the SN74LS266D carries a JESD-609 code of e4, indicating it is a lead-free and RoHS-compliant component. The Pbfree Code is marked as Yes, making it suitable for modern manufacturing environments that require compliance with environmental regulations restricting hazardous substances in electronics.

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About Texas Instruments

Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.

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AvailabilityIn Stock

Reference Price (USD)

From $0.4600

Buy from 1pc · Factory-direct pricing

Qty.	Unit Price	Ext. Price
1+	$0.6900	$0.69
8+	$0.5750	$4.60
29+	$0.5400	$15.66
36+	$0.4600	$16.56

pcs

Unit price: $0.6900 · Total: $0.69

In Stock · 24h Response · Worldwide Shipping

Direct Contact

WhatsApp Inquiry Email RFQ

Lead Time3-7 business days

MOQFrom 1 piece

ShippingDHL / FedEx / UPS

OriginChina (Authorized)

Response within 24 hours · Worldwide shipping

“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”

Marco Rossi

CTO, AutoDrive Systems, Italy

SN74LS266D Texas Instruments Integrated Circuit (Other) In Stock

What are the key features of SN74LS266D?

What is SN74LS266D used for?

What are the specifications of SN74LS266D?

Compliance & Regulatory

Where can I find the SN74LS266D datasheet?

What are equivalent replacements for SN74LS266D?

Frequently Asked Questions

What is the maximum output sink current for the SN74LS266D?

What package type does the SN74LS266D use and how many pins does it have?

Can the SN74LS266D be used in parity checking circuits?

Is the SN74LS266D RoHS compliant?

Related Guides

CSD87313DMS Synchronous Buck Power Stage Design Guide

STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection

C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC

STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security

Why Buy from FindMyChip

About Texas Instruments

More from Texas Instruments

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