74LVQ138TTR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Decoder/Demultiplexer
• Characteristics: Low-voltage, Quad 2-to-4 line decoder/demultiplexer
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: High-performance digital logic chip
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 1.65V to 5.5V
• Input Voltage Range: -0.5V to VCC + 0.5V
• Output Voltage Range: -0.5V to VCC + 0.5V
• Maximum Operating Frequency: 200 MHz
• Number of Inputs: 3
• Number of Outputs: 8
• Propagation Delay Time: 3.5 ns (typical)

Detailed Pin Configuration

The 74LVQ138TTR has a total of 16 pins. The pin configuration is as follows:

1. GND (Ground)
2. A0 (Input A0)
3. A1 (Input A1)
4. A2 (Input A2)
5. E1 (Enable Input 1)
6. Y0 (Output Y0)
7. Y1 (Output Y1)
8. Y2 (Output Y2)
9. Y3 (Output Y3)
10. E2 (Enable Input 2)
11. Y4 (Output Y4)
12. Y5 (Output Y5)
13. Y6 (Output Y6)
14. Y7 (Output Y7)
15. VCC (Supply Voltage)
16. GND (Ground)

Functional Features

• Decodes three binary address inputs into eight mutually exclusive outputs
• Can be used as a demultiplexer by enabling one of the three enable inputs
• Low-voltage operation allows compatibility with a wide range of systems
• High-speed operation with minimal propagation delay time
• Output capability: standard

Advantages and Disadvantages

Advantages: - Low-voltage operation makes it suitable for battery-powered devices - High-speed operation enables efficient data processing - Small package size saves board space - Wide supply voltage range increases compatibility

Disadvantages: - Limited number of inputs and outputs - Not suitable for high-power applications

Working Principles

The 74LVQ138TTR is a decoder/demultiplexer IC that takes three binary address inputs (A0, A1, A2) and decodes them into eight mutually exclusive outputs (Y0-Y7). The enable inputs (E1, E2) control the operation of the device. When one of the enable inputs is activated, the corresponding output lines become active based on the binary address inputs.

Detailed Application Field Plans

The 74LVQ138TTR can be used in various applications, including but not limited to:

1. Address decoding in microcontrollers and microprocessors
2. Data routing and selection in digital systems
3. Memory address decoding in computer systems
4. Signal demultiplexing in communication systems
5. Control signal generation in industrial automation

Detailed and Complete Alternative Models

1. 74HC138: Similar functionality, but operates at a higher voltage range (2V to 6V)
2. CD74HCT138: Compatible alternative with TTL logic levels
3. SN74LS138: Alternative with Schottky-clamped TTL inputs for improved noise immunity
4. MC14539B: Dual 1-of-4 decoder/demultiplexer with similar functionality

These alternative models offer similar functionality to the 74LVQ138TTR and can be used as replacements depending on specific requirements.

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