CD74HC154EG4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Decoder/Demultiplexer
• Characteristics: High-Speed CMOS Logic, 4-to-16 Line Decoder/Demultiplexer
• Package: 24-pin TSSOP (Thin Shrink Small Outline Package)
• Essence: The CD74HC154EG4 is a decoder/demultiplexer IC that converts a 4-bit binary input into a 16-line output. It is designed for high-speed applications and operates on CMOS logic.
• Packaging/Quantity: 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: 14 ns (typical)
• Output Current: ±25mA
• Power Dissipation: 500mW (max)

Pin Configuration

The CD74HC154EG4 has a total of 24 pins. Here is the detailed pin configuration:

1. GND (Ground)
2. A0 (Binary Input 0)
3. A1 (Binary Input 1)
4. A2 (Binary Input 2)
5. A3 (Binary Input 3)
6. E1 (Enable Input 1)
7. E2 (Enable Input 2)
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. Y8 (Output 8)
17. Y9 (Output 9)
18. Y10 (Output 10)
19. Y11 (Output 11)
20. Y12 (Output 12)
21. Y13 (Output 13)
22. Y14 (Output 14)
23. Y15 (Output 15)
24. VCC (Supply Voltage)

Functional Features

• Converts a 4-bit binary input into a 16-line output
• High-speed operation suitable for time-critical applications
• CMOS logic ensures low power consumption and compatibility with various digital systems
• Enable inputs allow selective activation of the decoder/demultiplexer
• Output lines can drive standard TTL or CMOS logic levels

Advantages and Disadvantages

Advantages: - High-speed operation enables efficient data processing - Low power consumption due to CMOS technology - Compact package size saves board space - Wide supply voltage range allows flexibility in different applications

Disadvantages: - Limited number of input bits (4-bit) - Output current limited to ±25mA - Propagation delay may affect timing-sensitive applications

Working Principles

The CD74HC154EG4 operates based on the principle of decoding a 4-bit binary input into a corresponding output line. The enable inputs (E1 and E2) control the activation of the decoder/demultiplexer. When enabled, the IC converts the binary input (A0-A3) into one of the 16 output lines (Y0-Y15). The selected output line carries the logic level corresponding to the binary input.

Detailed Application Field Plans

The CD74HC154EG4 finds applications in various fields where decoding and demultiplexing functions are required. Some specific application areas include:

1. Address decoding in microprocessors and memory systems
2. Data routing and selection in digital communication systems
3. Multiplexing control in data acquisition systems
4. Signal demultiplexing in audio/video equipment
5. Control logic in industrial automation systems

Detailed and Complete Alternative Models

1. SN74HC154N: Similar 4-to-16 line decoder/demultiplexer IC from Texas Instruments.
2. CD4514BE: 4-to-16 line decoder/demultiplexer IC with latch enable from Texas Instruments.
3. MC14514B: CMOS 4-bit addressable latch/4-to-16 line decoder IC from ON Semiconductor.

These alternative models offer similar functionality to the CD74HC154EG4 and can be considered as replacements depending on specific requirements.

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