SN74LVC139AGQNR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Decoder/Demultiplexer
• Characteristics: Low-Voltage, CMOS Logic, Dual 2-Line to 4-Line Decoder/Demultiplexer
• Package: VQFN (Very Thin Quad Flat No-Lead)
• Essence: High-performance digital logic device for decoding and demultiplexing applications
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 1.65V to 5.5V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Maximum Operating Frequency: 100 MHz
• Number of Inputs: 2
• Number of Outputs: 4
• Propagation Delay Time: 3.8 ns (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The SN74LVC139AGQNR has a total of 16 pins, which are assigned as follows:

1. GND (Ground)
2. A0 (Input A0)
3. A1 (Input A1)
4. Y0 (Output Y0)
5. Y1 (Output Y1)
6. Y2 (Output Y2)
7. Y3 (Output Y3)
8. G (Enable Input G)
9. VCC (Positive Power Supply)
10. B0 (Input B0)
11. B1 (Input B1)
12. Y4 (Output Y4)
13. Y5 (Output Y5)
14. Y6 (Output Y6)
15. Y7 (Output Y7)
16. NC (No Connection)

Functional Features

• Dual 2-line to 4-line decoder/demultiplexer functionality
• Low-voltage CMOS technology for reduced power consumption
• High-speed operation with minimal propagation delay
• Wide operating voltage range for compatibility with various systems
• Enable input for easy control of the decoder/demultiplexer

Advantages and Disadvantages

Advantages: - Low power consumption due to CMOS technology - High-speed operation for efficient decoding and demultiplexing - Wide operating voltage range allows for versatile applications - Compact VQFN package for space-saving designs

Disadvantages: - Limited number of inputs and outputs (2:4 configuration) - Propagation delay may affect timing-sensitive applications - Not suitable for high-frequency or high-power applications

Working Principles

The SN74LVC139AGQNR is a decoder/demultiplexer IC that takes two binary inputs (A0 and A1) and selects one of four outputs (Y0 to Y3) based on the input combination. The enable input (G) controls the operation of the device. When G is low, the outputs are in a high-impedance state.

The IC operates on a supply voltage ranging from 1.65V to 5.5V, making it compatible with a wide range of digital systems. It utilizes CMOS technology, which ensures low power consumption and high-speed operation. The decoder/demultiplexer has a propagation delay time of 3.8 ns (typical), allowing for efficient signal processing.

Detailed Application Field Plans

The SN74LVC139AGQNR can be used in various applications, including:

1. Address decoding in microcontrollers and microprocessors
2. Data routing and selection in multiplexers
3. Memory address decoding in RAM and ROM modules
4. Signal demultiplexing in communication systems
5. Control signal generation in digital circuits

Its compact size and low power consumption make it suitable for portable devices, such as smartphones, tablets, and wearable electronics. Additionally, its wide operating voltage range enables compatibility with different power supply systems.

Detailed and Complete Alternative Models

1. SN74LVC138A: Similar to SN74LVC139AGQNR but with a 3-line to 8-line configuration.
2. CD74HC139E: High-speed CMOS logic decoder/demultiplexer with a 2:4 configuration.
3. 74HC238N: 3-to-8 line decoder/demultiplexer with TTL-compatible inputs and outputs.
4. CD4514BE: 4-bit latch/4-to-16 line decoder/demultiplexer with address latching capability.

These alternative models offer similar functionality and can be used as substitutes for the SN74LVC139AGQNR in various applications.

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