SN74LV139ANSRE4

Product Overview

• Category: Integrated Circuit
• Use: Decoder/Demultiplexer
• Characteristics: Low-Voltage, Dual 2-Line to 4-Line Decoder/Demultiplexer
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: This integrated circuit is designed to decode two binary inputs into four mutually exclusive outputs.
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Supply Voltage: 1.65V to 5.5V
• Input Voltage: 0V to VCC
• Output Voltage: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay Time: 6 ns (typical)
• Output Current: ±8 mA

Pin Configuration

The SN74LV139ANSRE4 has a total of 16 pins. The pin configuration is as follows:

+---+--+---+ A0 --|1 +--+ 16|-- VCC A1 --|2 15|-- Y0 E --|3 14|-- Y1 Y0 --|4 13|-- Y2 Y1 --|5 74LV 12|-- Y3 Y2 --|6 139AN 11|-- GND Y3 --|7 SRE4 10|-- A1 GND --|8 9 |-- A0 +----------+

Functional Features

• Dual 2-line to 4-line decoding functionality
• Active-low enable input (E) for easy control of the decoder operation
• Outputs are mutually exclusive, meaning only one output is active at a time
• Low-voltage operation allows for compatibility with a wide range of systems

Advantages and Disadvantages

Advantages: - Compact SOIC package saves board space - Wide operating voltage range enables versatile applications - Fast propagation delay ensures quick response times

Disadvantages: - Limited number of outputs may not be suitable for complex decoding requirements - Lack of built-in protection features may require additional circuitry for robustness

Working Principles

The SN74LV139ANSRE4 operates based on the principles of digital logic. It takes two binary inputs (A0 and A1) and decodes them into four mutually exclusive outputs (Y0, Y1, Y2, and Y3). The enable input (E) controls the operation of the decoder. When E is low, the decoder is enabled, and the selected output is determined by the binary inputs. When E is high, all outputs are in a high-impedance state.

Detailed Application Field Plans

The SN74LV139ANSRE4 can be used in various applications that require decoding or demultiplexing functionality. Some potential application fields include:

1. Address decoding in microcontrollers and memory systems
2. Data routing and selection in multiplexers
3. Signal decoding in communication systems
4. Control signal generation in digital circuits
5. Logic function implementation in combinational circuits

Detailed and Complete Alternative Models

• SN74LV138A: Similar to SN74LV139ANSRE4 but with three enable inputs for more flexible control options.
• CD74HC139E: High-speed CMOS version of the dual 2-line to 4-line decoder/demultiplexer.
• MC14539B: Dual 1-of-4 decoder/demultiplexer with separate strobe inputs for each section.

These alternative models offer similar functionality and can be considered based on specific requirements and availability.

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