CD74HC154ENG4

Product Overview

• Category: Integrated Circuit
• Use: Decoder/Demultiplexer
• Characteristics: High-Speed CMOS Logic, 4-to-16 Line Decoder/Demultiplexer
• Package: DIP (Dual In-line Package)
• Essence: The CD74HC154ENG4 is a decoder/demultiplexer IC that converts a 4-bit binary input into a 16-line output. It is designed using high-speed CMOS logic technology, providing fast and efficient decoding capabilities.
• Packaging/Quantity: Available in tubes or reels, with varying quantities depending on the supplier.

Specifications

The CD74HC154ENG4 has the following specifications:

• Supply Voltage: 2V to 6V
• Input Voltage: 0V to Vcc
• Output Voltage: 0V to Vcc
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay: 13 ns (typical)
• Output Current: ±25mA
• Power Dissipation: 500mW

Pin Configuration

The CD74HC154ENG4 has a total of 24 pins, which are assigned as follows:

1. GND (Ground)
2. A0 (Input A0)
3. A1 (Input A1)
4. A2 (Input A2)
5. A3 (Input A3)
6. E1 (Enable Input 1)
7. E2 (Enable Input 2)
8. Y0 (Output Y0)
9. Y1 (Output Y1)
10. Y2 (Output Y2)
11. Y3 (Output Y3)
12. Y4 (Output Y4)
13. Y5 (Output Y5)
14. Y6 (Output Y6)
15. Y7 (Output Y7)
16. Y8 (Output Y8)
17. Y9 (Output Y9)
18. Y10 (Output Y10)
19. Y11 (Output Y11)
20. Y12 (Output Y12)
21. Y13 (Output Y13)
22. Y14 (Output Y14)
23. Y15 (Output Y15)
24. Vcc (Supply Voltage)

Functional Features

The CD74HC154ENG4 offers the following functional features:

• 4-to-16 line decoding: It can convert a 4-bit binary input into a corresponding output on one of the 16 output lines.
• Enable inputs: The E1 and E2 pins allow for enabling or disabling the decoder/demultiplexer, providing flexibility in controlling the output lines.
• High-speed operation: The IC is designed using high-speed CMOS logic technology, ensuring fast and efficient decoding.

Advantages and Disadvantages

Advantages of the CD74HC154ENG4 include:

• Fast decoding capability
• Flexible enable inputs for control
• Wide operating voltage range
• Compact DIP package for easy integration

Disadvantages of the CD74HC154ENG4 include:

• Limited number of input bits (4-bit)
• Propagation delay may affect timing-sensitive applications

Working Principles

The CD74HC154ENG4 works based on the principle of binary decoding. The 4-bit binary input is decoded to activate one of the 16 output lines. The enable inputs (E1 and E2) control the activation of the decoder/demultiplexer. When enabled, the selected output line corresponds to the binary input value.

Detailed Application Field Plans

The CD74HC154ENG4 finds applications in various fields, including:

1. Address decoding in microprocessors and microcontrollers
2. Data routing and selection in digital systems
3. Memory expansion control
4. Multiplexing and demultiplexing applications
5. Signal decoding in communication systems

Detailed and Complete Alternative Models

Some alternative models to the CD74HC154ENG4 include:

1. 74HC154: Similar 4-to-16 line decoder/demultiplexer IC from other manufacturers.
2. CD4514: 4-to-16 line decoder/demultiplexer with latch functionality.
3. SN74LS154: 4-to-16 line decoder/demultiplexer with Schottky TTL technology.

These alternative models offer similar functionality but may have different specifications, pin configurations, or package types.

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