74HC244DB,118

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Buffer/Line Driver
• Characteristics: High-speed, CMOS technology, 3-state outputs
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Logic gate with 8-bit buffer/line driver functionality
• Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

• Supply Voltage Range: 2.0V to 6.0V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Maximum Operating Frequency: 80 MHz
• Number of Inputs: 8
• Number of Outputs: 8
• Propagation Delay Time: 10 ns (typical)

Detailed Pin Configuration

1. GND (Ground)
2. A1 (Input 1)
3. A2 (Input 2)
4. A3 (Input 3)
5. A4 (Input 4)
6. A5 (Input 5)
7. A6 (Input 6)
8. A7 (Input 7)
9. A8 (Input 8)
10. OE (Output Enable)
11. Y1 (Output 1)
12. Y2 (Output 2)
13. Y3 (Output 3)
14. Y4 (Output 4)
15. Y5 (Output 5)
16. Y6 (Output 6)
17. Y7 (Output 7)
18. Y8 (Output 8)
19. VCC (Supply Voltage)

Functional Features

• 3-state outputs allow multiple devices to share a common bus
• High-speed operation suitable for applications requiring fast data transfer
• CMOS technology provides low power consumption and wide voltage range compatibility
• Buffer/line driver functionality ensures signal integrity and voltage level translation

Advantages

• Versatile buffer/line driver suitable for various applications
• High-speed operation enables efficient data transfer
• 3-state outputs allow for bus sharing and flexibility in system design
• CMOS technology provides low power consumption and wide voltage range compatibility

Disadvantages

• Limited number of inputs and outputs (8 each)
• Propagation delay time may affect timing-sensitive applications

Working Principles

The 74HC244DB,118 is a logic gate IC that functions as an 8-bit buffer/line driver. It operates using CMOS technology, which allows for high-speed operation and low power consumption. The inputs (A1-A8) are used to receive digital signals, while the outputs (Y1-Y8) provide buffered versions of the input signals. The output enable (OE) pin controls the state of the outputs, allowing them to be either active or in a high-impedance state.

When the OE pin is low, the outputs are enabled and mirror the input signals. This allows for data transfer between multiple devices connected to a common bus. When the OE pin is high, the outputs are in a high-impedance state, effectively disconnecting them from the bus.

Detailed Application Field Plans

The 74HC244DB,118 can be used in various applications, including: 1. Data communication systems 2. Microprocessor interfacing 3. Memory address decoding 4. Bus drivers 5. Level shifting circuits

Detailed and Complete Alternative Models

Some alternative models to the 74HC244DB,118 include: - SN74HC244N - CD74HC244E - MC74HC244AN - TC74HC244AF

These alternatives offer similar functionality and characteristics, but may differ in package type or manufacturer.

In conclusion, the 74HC244DB,118 is a versatile buffer/line driver IC that provides high-speed operation and 3-state outputs. It is commonly used in various applications requiring data transfer, microprocessor interfacing, and bus drivers. While it has limitations in terms of the number of inputs and outputs, its advantages include low power consumption and compatibility with a wide voltage range. Alternative models are available from different manufacturers to suit specific requirements.