74LVC139DB,112

Product Overview

• Category: Integrated Circuit (IC)
• Use: Decoder/Demultiplexer
• Characteristics: Low-voltage CMOS technology, high-speed operation, low power consumption
• Package: SSOP (Shrink Small Outline Package)
• Essence: Dual 2-to-4 line decoder/demultiplexer
• Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

• Supply Voltage Range: 1.65V to 5.5V
• High-Level Input Voltage: 0.7 x VCC
• Low-Level Input Voltage: 0.3 x VCC
• High-Level Output Current: -32 mA
• Low-Level Output Current: 32 mA
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The 74LVC139DB,112 IC has a total of 16 pins. The pin configuration is as follows:

1. GND (Ground)
2. A0 (Address Input 0)
3. A1 (Address Input 1)
4. Y0 (Output 0)
5. Y1 (Output 1)
6. Y2 (Output 2)
7. Y3 (Output 3)
8. E1 (Enable Input 1)
9. E2 (Enable Input 2)
10. VCC (Supply Voltage)
11. B0 (Input B0)
12. B1 (Input B1)
13. Y4 (Output 4)
14. Y5 (Output 5)
15. Y6 (Output 6)
16. Y7 (Output 7)

Functional Features

• Dual 2-to-4 line decoding or demultiplexing capability
• Active LOW enable inputs (E1 and E2) for easy control
• High-speed operation with propagation delay of 4.3 ns (typical) at 5V supply voltage
• Low power consumption, making it suitable for battery-powered applications
• Compatible with various logic families due to its CMOS technology

Advantages and Disadvantages

Advantages: - Versatile functionality as a decoder or demultiplexer - Fast operation speed - Low power consumption - Wide supply voltage range - Compact SSOP package for space-constrained designs

Disadvantages: - Limited number of outputs (8 in total) - Not suitable for high-current applications

Working Principles

The 74LVC139DB,112 is designed to decode or demultiplex two address inputs (A0 and A1) into four output lines (Y0 to Y3). The enable inputs (E1 and E2) control the operation of the IC. When both enable inputs are HIGH, the outputs are disabled. When either enable input is LOW, the corresponding output lines are activated based on the address inputs.

Detailed Application Field Plans

The 74LVC139DB,112 can be used in various applications, including but not limited to:

1. Address decoding in microcontrollers and microprocessors
2. Data routing and selection in multiplexing systems
3. Memory address decoding in RAM and ROM modules
4. Signal routing and selection in audio/video equipment
5. Control signal generation in digital circuits

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the 74LVC139DB,112 include:

1. SN74LS139N: Dual 2-to-4 line decoder/demultiplexer by Texas Instruments
2. CD74HC139E: High-speed CMOS logic dual 2-to-4 line decoder/demultiplexer by Texas Instruments
3. MC74HC139AN: Dual 2-to-4 line decoder/demultiplexer by ON Semiconductor

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

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