M74HC238RM13TR

Product Overview

• Category: Integrated Circuit
• Use: Decoding and Demultiplexing
• Characteristics: High-Speed, CMOS Technology
• Package: SOIC-16
• Essence: 3-to-8 Line Decoder/Demultiplexer
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Supply Voltage: 2V to 6V
• Input Voltage: -0.5V to VCC + 0.5V
• Output Voltage: -0.5V to VCC + 0.5V
• Operating Temperature: -40°C to +125°C
• Propagation Delay Time: 15ns (typical)
• Output Current: ±25mA
• Quiescent Current: 4µA (maximum)

Detailed Pin Configuration

The M74HC238RM13TR has a total of 16 pins arranged 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 (Positive Power Supply)

Functional Features

• Decodes 3 binary address inputs into 8 mutually exclusive outputs
• Demultiplexes a single input into 8 separate outputs based on the address inputs
• High-speed operation suitable for various applications
• CMOS technology ensures low power consumption and compatibility with other ICs

Advantages and Disadvantages

Advantages

• Fast propagation delay time allows for quick response in decoding and demultiplexing operations
• Wide operating voltage range enables flexibility in different circuit designs
• Low quiescent current minimizes power consumption, making it energy-efficient
• Compact SOIC-16 package offers space-saving benefits

Disadvantages

• Limited to 3-to-8 line decoding and demultiplexing functionality
• Not suitable for applications requiring higher output currents
• May require additional external components for certain circuit configurations

Working Principles

The M74HC238RM13TR operates by taking three binary address inputs (A0, A1, A2) and decoding them into eight mutually exclusive outputs (Y0-Y7). The enable inputs (E1, E2, E3) control the operation of the decoder/demultiplexer. When the appropriate address inputs are provided and the corresponding enable input is activated, the selected output becomes active.

Detailed Application Field Plans

The M74HC238RM13TR can be used in various applications, including:

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

Detailed and Complete Alternative Models

1. SN74LS138: 3-to-8 Line Decoder/Demultiplexer by Texas Instruments
2. CD74HC238: High-Speed CMOS Logic 3-to-8 Line Decoder/Demultiplexer by ON Semiconductor
3. MC74HC238: 3-to-8 Line Decoder/Demultiplexer by Motorola

These alternative models offer similar functionality and can be considered as substitutes for the M74HC238RM13TR.

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