CD74HC166E Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock

Name: CD74HC166E
Brand: Texas Instruments
SKU: CD74HC166E
Availability: InStock

Texas Instruments CD74HC166E is an 8-bit Parallel-In/Serial-Out shift register in a 16-pin DIP package. Operates up to 20 MHz with 50 pF load capacitance and supports SISO operation. Available from stock with worldwide shipping.

ACTIVEIntegrated CircuitVerified Jun 2026

Package / Visual Reference

CD74HC166EDual-In-Line Packages

Quick Facts

Manufacturer: Texas Instruments
Package: Dual-In-Line Packages
Pin Count: 16
Lifecycle: ACTIVE
Datasheet: CD74HC166E Datasheet PDF
Category: Integrated Circuit
Price: From $0.3525(MOQ 1)
Temp Range: -55.0°C to 125.0°C
RoHS: Compliant
Lead Time: 3–7 business days
Shipping: DHL Express · Worldwide

What are the key features of CD74HC166E?

High-speed CMOS logic supporting up to 20 MHz clock frequency for fast serial data transfer
Dual-mode operation: supports both Parallel-In/Serial-Out and Serial-In/Serial-Out (SISO) configurations
Standard 16-pin DIP package with JEDEC compliance (R-PDIP-T16) for easy through-hole PCB assembly
RoHS-compliant (Pb-free, e4 rated) ensuring compatibility with modern environmental standards

What is CD74HC166E used for?

The CD74HC166E is widely used in microcontroller and FPGA systems for converting parallel data to serial streams, reducing the number of I/O pins required. It is ideal for industrial control systems, data acquisition modules, and communication interfaces where efficient bus expansion is needed. Its high-speed operation also makes it suitable for signal processing pipelines in embedded systems.

What are the specifications of CD74HC166E?

Pbfree Code	Yes
YTEOL	15
Additional Feature	SISO OPERATION ALSO AVAILABLE
Count Direction	RIGHT
Family	HC/UH
JESD-30 Code	R-PDIP-T16
JESD-609 Code	e4
Load Capacitance (CL)	50pF
Logic IC Type	PARALLEL IN SERIAL OUT
Max Frequency@Nom-Sup	20000000Hz
Max I(ol)	0.0052A
Number of Bits	8
Number of Functions	1
Output Polarity	TRUE
Package Body Material	PLASTIC/EPOXY
Package Equivalence Code	DIP16,.3
Package Shape	RECTANGULAR
Package Style	IN-LINE
Packing Method	TUBE
Power Supply Current-Max (ICC)	0.16mA
Prop. Delay@Nom-Sup	32ns
Propagation Delay (tpd)	240ns
Qualification Status	Not Qualified
Schmitt Trigger	NO
Supply Voltage-Max (Vsup)	6V
Supply Voltage-Min (Vsup)	2V
Supply Voltage-Nom (Vsup)	4.5V
Surface Mount	NO
Technology	CMOS
Temperature Grade	MILITARY
Terminal Finish	Nickel/Palladium/Gold (Ni/Pd/Au)
Terminal Form	THROUGH-HOLE
Terminal Pitch	2.54mm
Terminal Position	DUAL
Trigger Type	POSITIVE EDGE
fmax-Min	24MHz
Package	Dual-In-Line Packages

Compliance & Regulatory

RoHS Status	Compliant
Lead-Free	Yes (Pb-Free)
ECCN	EAR99
HTS Code	8542.39.00.90
Country of Origin	Malaysia, Mexico

Where can I find the CD74HC166E datasheet?

CD74HC166E Datasheet Download

Official datasheet from Texas Instruments

What are equivalent replacements for CD74HC166E?

No known alternates. Submit an RFQ and our team can suggest alternatives.

Frequently Asked Questions

What is the maximum operating frequency of the CD74HC166E?

The CD74HC166E supports a maximum clock frequency of 20 MHz (20,000,000 Hz) with a load capacitance of 50 pF, making it suitable for high-speed serial data transfer applications.

Can the CD74HC166E operate in serial-in/serial-out (SISO) mode?

Yes, the CD74HC166E supports SISO (Serial-In/Serial-Out) operation in addition to its primary Parallel-In/Serial-Out function, providing added flexibility for various shift register configurations.

What package type does the CD74HC166E use?

The CD74HC166E comes in a 16-pin Dual-In-Line Package (PDIP), JEDEC code R-PDIP-T16, which is a standard through-hole package suitable for prototyping and PCB mounting.

Is the CD74HC166E RoHS compliant?

Yes, the CD74HC166E is Pb-free (lead-free) and carries JESD-609 code e4, confirming it meets RoHS environmental compliance requirements for use in modern electronics manufacturing.

What are common applications for the CD74HC166E?

The CD74HC166E is commonly used in embedded systems, PLCs, data acquisition boards, and communication interfaces to convert 8-bit parallel data into serial streams, minimizing required I/O lines.

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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 $0.3525

Buy from 1pc · Factory-direct pricing

Qty.	Unit Price	Ext. Price
1+	$0.4230	$0.42
13+	$0.3525	$4.58

pcs

Unit price: $0.4230 · Total: $0.42

In Stock · 24h Response · Worldwide Shipping

Direct Contact

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Lead Time3-7 business days

MOQFrom 1 piece

ShippingDHL / FedEx / UPS

OriginChina (Authorized)

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CD74HC166E Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock

What are the key features of CD74HC166E?

What is CD74HC166E used for?

What are the specifications of CD74HC166E?

Compliance & Regulatory

Where can I find the CD74HC166E datasheet?

What are equivalent replacements for CD74HC166E?

Frequently Asked Questions

What is the maximum operating frequency of the CD74HC166E?

Can the CD74HC166E operate in serial-in/serial-out (SISO) mode?

What package type does the CD74HC166E use?

Is the CD74HC166E RoHS compliant?

What are common applications for the CD74HC166E?

Related Guides

STM32H725IGT3 Selection Guide: Memory, Package, Temperature, and Supply

STM32H725IGT3 High-Performance MCU Design Guide

150141VS73100 Violet SMD LED Selection Guide: Color, Drive, and Sourcing

STEF05SGR 5 V eFuse Protection Design Guide

Why Buy from FindMyChip

About Texas Instruments

More from Texas Instruments

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