SN74AHCT139DGVR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Decoder/Demultiplexer
• Characteristics:
  • High-speed operation
  • Low power consumption
  • Wide operating voltage range
• Package: VSSOP (Very Small Outline Package)
• Essence: Dual 2-to-4 Line Decoder/Demultiplexer
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Supply Voltage Range: 2V to 5.5V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay Time: 6 ns (typical)
• Output Current: ±8 mA

Pin Configuration

The SN74AHCT139DGVR has a total of 16 pins, which are assigned as follows:

1. A0: Address Input 0
2. A1: Address Input 1
3. GND: Ground
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: Positive Power Supply
11. B0: Input 0
12. B1: Input 1
13. GND: Ground
14. Y4: Output 4
15. Y5: Output 5
16. Y6: Output 6

Functional Features

• Dual 2-to-4 Line Decoder/Demultiplexer
• Decodes two binary address inputs into four mutually exclusive outputs
• Enables easy selection of one output from multiple inputs
• High-speed operation allows for efficient data processing
• Low power consumption ensures energy efficiency
• Wide operating voltage range provides flexibility in various applications

Advantages and Disadvantages

Advantages: - High-speed operation enables quick data decoding - Low power consumption reduces energy usage - Wide operating voltage range allows for versatile applications

Disadvantages: - Limited number of outputs (4) may not be sufficient for complex systems requiring more outputs - Propagation delay time may affect real-time applications with strict timing requirements

Working Principles

The SN74AHCT139DGVR is a dual 2-to-4 line decoder/demultiplexer IC. It takes two binary address inputs (A0 and A1) and decodes them into four mutually exclusive outputs (Y0 to Y3). The enable inputs (E1 and E2) control the operation of the decoder/demultiplexer.

When both enable inputs are high, the decoder is enabled, and the selected output is determined by the binary address inputs. Each combination of address inputs corresponds to a specific output. For example, when A0=0 and A1=0, Y0 is selected as the active output.

The SN74AHCT139DGVR operates at high speed, allowing for efficient data processing. It also has low power consumption, making it suitable for battery-powered devices. The wide operating voltage range ensures compatibility with different power supply levels.

Detailed Application Field Plans

The SN74AHCT139DGVR can be used in various applications, including:

1. Address decoding in microcontrollers and microprocessors
2. Memory selection in digital systems
3. Data routing in communication systems
4. Input/output expansion in embedded systems
5. Multiplexing and demultiplexing in data transmission

Its ability to decode binary addresses and select specific outputs makes it valuable in systems where multiple inputs need to be processed or routed efficiently.

Detailed and Complete Alternative Models

1. 74HC139: Similar dual 2-to-4 line decoder/demultiplexer IC with slightly different specifications.
2. CD74HCT139E: Dual 2-to-4 line decoder/demultiplexer IC from a different manufacturer.
3. SN74LS139N: Dual 2-to-4 line decoder/demultiplexer IC with different characteristics and package.

These alternative models offer similar functionality but may have variations in specifications, performance, and packaging options. It is important to consider the specific requirements of the application when selecting an alternative model.

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