SN74LV244ATDGVRE4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Buffer/Line Driver
• Characteristics: Low-voltage, Octal Bus Buffer with 3-State Outputs
• Package: TSSOP-20
• Essence: This IC is designed to provide buffering and line driving capabilities for digital signals in low-voltage applications.
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 1.65V to 5.5V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• High-Level Input Voltage: 0.7 x VCC to VCC
• Low-Level Input Voltage: 0V to 0.3 x VCC
• High-Level Output Voltage: 0.9 x VCC to VCC
• Low-Level Output Voltage: 0V to 0.1 x VCC
• Maximum Operating Frequency: 100MHz
• Number of Channels: 8
• Output Type: 3-State

Detailed Pin Configuration

The SN74LV244ATDGVRE4 has a TSSOP-20 package with the following pin configuration:

__ __ A1 | 1 20 | VCC B1 | 2 19 | OE# A2 | 3 18 | B2 B2 | 4 17 | A3 A3 | 5 16 | B3 B3 | 6 15 | A4 GND| 7 14 | B4 Y1 | 8 13 | A5 Y2 | 9 12 | B5 A5 |10 11 | Y3 ‾‾ ‾‾

Functional Features

• Octal buffer with 3-state outputs
• Provides non-inverting level shifting and line driving capabilities
• Enables bidirectional communication between different voltage domains
• Supports low-voltage applications with a wide supply voltage range
• Offers high-speed operation with a maximum frequency of 100MHz
• Allows for easy interfacing with microcontrollers, FPGAs, and other digital devices

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows for compatibility with various systems - High-speed operation enables efficient data transfer - 3-state outputs provide flexibility in controlling bus lines - Small package size saves board space

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

Working Principles

The SN74LV244ATDGVRE4 operates by receiving digital input signals on its A1-A5 and B1-B5 pins. These inputs are then buffered and amplified to drive the corresponding Y1-Y3 outputs. The OE# pin is used to enable or disable the outputs. When OE# is low, the outputs are active and reflect the input signals. When OE# is high, the outputs are in a high-impedance state, allowing other devices to control the bus lines.

Detailed Application Field Plans

The SN74LV244ATDGVRE4 is commonly used in various applications, including:

1. Microcontroller interfacing: It facilitates communication between microcontrollers operating at different voltage levels.
2. FPGA I/O expansion: It provides additional I/O lines for field-programmable gate arrays (FPGAs) to interface with external devices.
3. Level shifting: It converts logic levels between different voltage domains, enabling compatibility between incompatible systems.
4. Bus driving: It drives bus lines in digital systems, ensuring reliable signal transmission.

Detailed and Complete Alternative Models

1. SN74LV244A: Similar to SN74LV244ATDGVRE4 but with a different package (SOIC-20).
2. SN74LVC244A: Low-voltage octal buffer with 3-state outputs, compatible with 3.3V systems.
3. SN74HCT244: Octal buffer with 3-state outputs, suitable for high-speed applications.

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

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