NLV74HC238ADR2G

Product Overview

Category: Integrated Circuit (IC)

Use: The NLV74HC238ADR2G is a 3-to-8 line decoder/demultiplexer IC. It is commonly used in digital electronics circuits to decode binary information and select one of the eight output lines based on the input signals.

Characteristics: - High-speed operation - Low power consumption - Wide operating voltage range - Schmitt-trigger inputs for noise immunity - Output capability: standard TTL

Package: SOIC-16 (Small Outline Integrated Circuit)

Essence: The NLV74HC238ADR2G is an essential component in digital systems where decoding and demultiplexing functions are required. It simplifies the circuit design by reducing the number of components needed.

Packaging/Quantity: The NLV74HC238ADR2G is typically available in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Supply Voltage Range: 2V to 6V
• Input Voltage Range: 0V to Vcc
• Output Voltage Range: 0V to Vcc
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay Time: 15 ns (max)
• Output Current: ±25 mA

Pin Configuration

The NLV74HC238ADR2G has a total of 16 pins, which are assigned specific functions as follows:

1. GND: Ground
2. A0: Address Input 0
3. A1: Address Input 1
4. A2: Address Input 2
5. E1: Enable Input 1
6. E2: Enable Input 2
7. E3: Enable Input 3
8. Y0: Output 0
9. Y1: Output 1
10. Y2: Output 2
11. Y3: Output 3
12. Y4: Output 4
13. Y5: Output 5
14. Y6: Output 6
15. Y7: Output 7
16. Vcc: Supply Voltage

Functional Features

The NLV74HC238ADR2G offers the following functional features:

• Decodes a 3-bit binary input into one of eight output lines.
• Enables individual output lines based on the combination of address inputs and enable inputs.
• Provides high-speed operation with low power consumption.
• Incorporates Schmitt-trigger inputs for improved noise immunity.

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient data processing. - Low power consumption helps in reducing overall system power requirements. - Wide operating voltage range provides flexibility in various applications. - Schmitt-trigger inputs ensure reliable operation even in noisy environments. - Simplifies circuit design by integrating decoding and demultiplexing functions into a single IC.

Disadvantages: - Limited to 3-to-8 line decoding/demultiplexing functionality. - May not be suitable for applications requiring higher decoding capabilities.

Working Principles

The NLV74HC238ADR2G works based on the principle of binary decoding. The three address inputs (A0, A1, A2) determine the binary code, which is then decoded to activate one of the eight output lines (Y0-Y7). The enable inputs (E1, E2, E3) further control the activation of specific output lines. When the appropriate combination of address and enable inputs is applied, the corresponding output line becomes active.

Detailed Application Field Plans

The NLV74HC238ADR2G finds applications in various digital systems, including but not limited to:

1. Address decoding in microcontrollers and microprocessors.
2. Memory selection in RAM and ROM systems.
3. Data routing and selection in multiplexers and demultiplexers.
4. Signal decoding in communication systems.
5. Control logic implementation in digital circuits.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the NLV74HC238ADR2G include:

1. 74HC138: This is a widely used 3-to-8 line decoder/demultiplexer IC from the 74HC series.
2. CD74HC238: Another popular 3-to-8 line decoder/demultiplexer IC from the CD74HC series.
3. SN74HC238: A Texas Instruments' version of the 3-to-8 line decoder/demultiplexer IC.

These alternative models can be considered based on specific requirements, availability, and compatibility with existing circuit designs.

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