SN74LV244ADWR

Product Overview

• Category: Integrated Circuit
• Use: Buffer/Line Driver
• Characteristics: Low-voltage, Octal Bus Buffer with 3-State Outputs
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Provides buffering and line driving capabilities for digital signals
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 1.65V to 5.5V
• High-Level Input Voltage: 2V to VCC + 0.5V
• Low-Level Input Voltage: -0.5V to 0.8V
• High-Level Output Voltage: 2.4V (min) at IOH = -12mA
• Low-Level Output Voltage: 0.4V (max) at IOL = 24mA
• Maximum Operating Frequency: 50MHz
• Number of Channels: 8
• Output Type: 3-State Non-Inverting

Detailed Pin Configuration

The SN74LV244ADWR has a total of 20 pins. The pin configuration is as follows:

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

Functional Features

• Octal bus buffer with 3-state outputs
• Provides non-inverting buffering and line driving capabilities
• Supports bidirectional data flow
• Allows multiple devices to be connected to a common bus
• Enables easy interfacing between different logic families

Advantages and Disadvantages

Advantages: - Low-voltage operation allows for compatibility with various systems - 3-state outputs provide flexibility in controlling the bus - High-speed operation supports fast data transfer - Compact SOIC package saves board space

Disadvantages: - Limited number of channels (8) - Not suitable for high-power applications

Working Principles

The SN74LV244ADWR is designed to buffer and drive digital signals on a bus. It operates by receiving input signals on the A1-A8 pins and providing corresponding output signals on the Y1-Y8 pins. The OE pin controls the output enable function, allowing the device to enter a high-impedance state when not actively driving the bus.

Detailed Application Field Plans

The SN74LV244ADWR is commonly used in various applications, including:

1. Microcontroller interfacing: It facilitates communication between microcontrollers and peripheral devices by providing buffering and line driving capabilities.
2. Memory systems: It can be used to interface memory modules with a central processing unit, ensuring reliable data transfer.
3. Communication systems: The device enables signal buffering and driving in communication protocols such as I2C, SPI, and UART.
4. Industrial automation: It finds application in control systems, PLCs, and motor drives, where it helps in signal conditioning and amplification.

Detailed and Complete Alternative Models

1. SN74LV245A: Similar to SN74LV244ADWR but with bidirectional data flow capability.
2. SN74LV541A: Octal buffer/line driver with 3-state outputs and increased output drive capability.
3. SN74LVC244A: Low-voltage CMOS octal buffer/line driver with 5V tolerant inputs.

These alternative models offer similar functionality to the SN74LV244ADWR but may have different specifications or package options.

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