74139 Dual Decoder-Demux IC

Quality electronics from The Engineer Store, Bengaluru. Fast shipping, 7-day warranty on manufacturing defects, expert support.

Product Overview

The 74139 is a dual 2-to-4 line decoder/demultiplexer IC widely used in digital logic circuits. Each decoder features independent enable inputs and active-low outputs, making it ideal for address decoding, data routing, and multiplexing applications.

Key Specifications

Parameter	Details
Type	Dual 2-to-4 Decoder-Demultiplexer
Logic Family	TTL/CMOS Compatible
Package	DIP-16 (Dual In-line)
Supply Voltage	5V
Output Type	Active Low (Open Collector)
Propagation Delay	~20ns typical
Origin	Original/Authentic
Warranty	7-day warranty on manufacturing defects
Support	Email & WhatsApp 24/7

Features & Benefits

Dual Independent Decoders - Two complete 2-to-4 decoders in one package

Enable Control - Active-low enable pins for cascading and selection

TTL/CMOS Compatible - Works seamlessly with standard logic families

Low Power Consumption - Ideal for battery-powered applications

Compact DIP-16 Package - Easy integration on breadboards and PCBs

Applications

• Address Decoding - Memory and I/O address selection
• Data Multiplexing - Routing data signals to different destinations
• LED/Display Control - Selecting individual LEDs or display segments
• Relay/Motor Control - Switching multiple outputs with minimal inputs
• Digital Logic Systems - General-purpose decoder functions
• Microcontroller Interfacing - Expanding I/O capabilities

Why Choose This Product?

100% authentic from trusted authorized distributors

1-5 day shipping, 7-8 day delivery from Bengaluru warehouse

Expert technical support included (24/7)

7-day warranty on manufacturing defects

Quality guaranteed with authentication verification

What's Included

• 74139 IC (single unit or as ordered)
• Datasheet and technical documentation
• Quick start guide
• Full technical support access

Pin Configuration

```

Pin 1-4: Decoder A Outputs (Y0-Y3)

Pin 5: Decoder A Enable (G) Pin 6: Decoder A Select B Pin 7: Decoder A Select A Pin 8: GND Pin 9: Decoder B Select A Pin 10: Decoder B Select B Pin 11: Decoder B Enable (G)

Pin 12-15: Decoder B Outputs (Y0-Y3)

Pin 16: VCC (+5V) ```

Typical Applications

Application	Description
Address Decoder	Decode 2-bit address to select 1 of 4 memory locations
Data Router	Route input data to one of 4 output lines
LED Matrix Control	Select rows/columns in LED display matrices
Chip Select Logic	Generate chip select signals for multiple devices
Demultiplexer	Convert single input to 4 independent outputs

Frequently Asked Questions

Is this 100% authentic?

Yes, sourced from authorized distributors with full authentication verification. Each IC is tested for quality assurance.

What warranty coverage is provided?

7-day warranty on manufacturing defects covering all manufacturing defects. Covers DOA (Dead on Arrival) and component failures.

How fast is shipping?

7-8 days to most locations in India from our Bengaluru warehouse. Express shipping available for urgent orders.

Do you provide technical support?

Yes, full technical support via email and WhatsApp 24/7. Get help with pinouts, applications, and troubleshooting.

What's your return policy?

7-day returns on manufacturing defects only with full refund or replacement. applicable on manufacturing defects only on DOA units.

Are bulk discounts available?

Yes, wholesale pricing for 10+ units. Contact our sales team for custom quotes on large orders.

Is this compatible with my microcontroller?

Yes, the 74139 is TTL/CMOS compatible and works with Arduino, Raspberry Pi, PIC, and other standard microcontrollers.

Can I cascade multiple 74139 ICs?

Yes, the enable inputs allow cascading for decoding more address lines. Consult the datasheet for cascading examples.

Technical Support & Resources

• Datasheet: Complete pin diagrams and truth tables
• Application Notes: Ready-to-use circuit examples
• Video Tutorials: Learn how to use the 74139 in your projects
• Community Forum: Connect with other electronics enthusiasts

Order your 74139 Dual Decoder-Demux IC today from The Engineer Store and get fast shipping with expert support!

Buy 74139 Dual Decoder-Demux IC Online in India

Purchase the 74139 Dual Decoder-Demux IC online at The Engineer Store - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on 74139 Dual Decoder-Demux IC with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.

Looking to buy 74139 Dual Decoder-Demux IC at the best price in India? The Engineer Store offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.