Encyclopedia Entry: 74AHCT245PW-Q100J

Product Overview

Category

The 74AHCT245PW-Q100J belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used for level shifting and signal buffering in various electronic devices and systems.

Characteristics

• High-speed operation
• Wide voltage range compatibility
• Low power consumption
• Robust performance under extreme temperature conditions

Package

The 74AHCT245PW-Q100J is available in a standard 20-pin TSSOP (Thin Shrink Small Outline Package) package.

Essence

The essence of this product lies in its ability to efficiently shift and buffer digital signals, ensuring reliable communication between different voltage domains within electronic circuits.

Packaging/Quantity

The 74AHCT245PW-Q100J is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Logic Family: AHCT
• Number of Channels: 8
• Input/Output Compatibility: TTL/CMOS
• Output Drive Capability: ±24mA
• Operating Temperature Range: -40°C to +125°C
• Propagation Delay: 6ns (typical)
• Output Transition Time: 10ns (typical)

Detailed Pin Configuration

The 74AHCT245PW-Q100J has a total of 20 pins, each serving a specific function. The pin configuration is as follows:

1. OE (Output Enable) 1
2. A1 (Input/Output) 1
3. I/O1 (Bidirectional) 1
4. GND (Ground)
5. I/O2 (Bidirectional) 2
6. A2 (Input/Output) 2
7. OE (Output Enable) 2
8. VCC (Supply Voltage)
9. B1 (Input/Output) 1
10. I/O3 (Bidirectional) 3
11. B2 (Input/Output) 2
12. I/O4 (Bidirectional) 4
13. GND (Ground)
14. I/O5 (Bidirectional) 5
15. A3 (Input/Output) 3
16. OE (Output Enable) 3
17. VCC (Supply Voltage)
18. A4 (Input/Output) 4
19. I/O6 (Bidirectional) 6
20. B3 (Input/Output) 3

Functional Features

• Bidirectional level shifting: Allows seamless communication between devices operating at different voltage levels.
• Output enable control: Enables or disables the output buffers, providing flexibility in signal routing.
• High-speed operation: Facilitates rapid data transfer and processing.
• Wide voltage range compatibility: Supports various voltage levels commonly found in electronic systems.
• Low power consumption: Helps conserve energy and prolong battery life.
• Robust performance under extreme temperature conditions: Ensures reliable operation in harsh environments.

Advantages and Disadvantages

Advantages

• Versatile level shifting capabilities
• Efficient signal buffering
• High-speed operation
• Wide voltage range compatibility
• Low power consumption
• Reliable performance in extreme temperatures

Disadvantages

• Limited number of channels (8)
• Requires careful consideration of input/output voltage compatibility

Working Principles

The 74AHCT245PW-Q100J operates based on the principles of CMOS (Complementary Metal-Oxide-Semiconductor) technology. It utilizes a combination of MOSFETs (Metal-Oxide-Semiconductor Field-Effect Transistors) to achieve bidirectional level shifting and signal buffering. The IC's internal circuitry ensures efficient voltage translation while maintaining signal integrity.

Detailed Application Field Plans

The 74AHCT245PW-Q100J finds applications in various electronic systems, including but not limited to:

1. Microcontrollers and microprocessors
2. Communication devices (e.g., routers, switches)
3. Industrial automation equipment
4. Automotive electronics
5. Consumer electronics (e.g., smartphones, tablets)
6. Test and measurement instruments
7. Robotics and control systems

Detailed and Complete Alternative Models

1. SN74LVC245A: Similar bidirectional level shifter with 8 channels, compatible with a wide range of voltage levels.
2. CD74HCT245E: Octal bus transceiver with 3-state outputs, suitable for interfacing between different logic families.
3. MC74VHC245DW: High-speed CMOS octal bus transceiver with 3-state outputs, ideal for voltage level conversion in demanding applications.

(Note: This list is not exhaustive and serves as an example of alternative models available in the market.)

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