CD74HCT154M

Product Overview

• Category: Integrated Circuit (IC)
• Use: Decoder/Demultiplexer
• Characteristics: High-speed, CMOS logic, 4-to-16 line decoder/demultiplexer
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Converts a 4-bit binary input into a 16-line output
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Supply Voltage Range: 2V to 6V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Maximum Operating Frequency: 25 MHz
• Propagation Delay Time: 15 ns
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The CD74HCT154M has a total of 24 pins. The pin configuration is 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 CD74HCT154M is a high-speed CMOS logic decoder/demultiplexer. It takes a 4-bit binary input and generates a 16-line output based on the input combination. The device features two enable inputs (E1 and E2) that control the operation of the decoder/demultiplexer. When both enable inputs are low, the outputs are in a high-impedance state.

Advantages and Disadvantages

Advantages: - High-speed operation - CMOS technology for low power consumption - Wide supply voltage range - Compact SOIC package for space-saving applications

Disadvantages: - Limited number of input combinations (4-bit input) - Propagation delay may affect timing-sensitive applications

Working Principles

The CD74HCT154M works by decoding the 4-bit binary input into one of the 16 possible output lines. The enable inputs determine whether the outputs are active or in a high-impedance state. The device utilizes CMOS technology, which allows for high-speed operation and low power consumption.

Detailed Application Field Plans

The CD74HCT154M can be used in various applications, including:

1. Address decoding in microcontrollers and microprocessors
2. Data routing in multiplexing systems
3. Memory selection in memory address decoding circuits
4. Signal demultiplexing in communication systems
5. Control signal generation in digital control circuits

Detailed and Complete Alternative Models

1. SN74LS154N: 4-to-16 line decoder/demultiplexer with TTL logic levels
2. CD4514BE: 4-to-16 line decoder/demultiplexer with latch enable feature
3. 74HC154: 4-to-16 line decoder/demultiplexer with higher operating frequency

These alternative models offer similar functionality to the CD74HCT154M and can be used as replacements depending on specific requirements.

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