SN74LVC244ADWRG4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Buffer/Line Driver
• Characteristics: Low Voltage, CMOS Logic, Octal Bus Buffer
• Package: SOIC-20
• Essence: High-speed, low-power buffer with 3-state outputs
• 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
• Maximum Operating Frequency: 80 MHz
• Number of Channels: 8
• Output Current: ±24mA
• Propagation Delay: 2.6ns (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The SN74LVC244ADWRG4 has a total of 20 pins, which are arranged as follows:

__ __ A1 | 1 20 | VCC B1 | 2 19 | OE# A2 | 3 18 | I/O1 B2 | 4 17 | I/O2 A3 | 5 16 | I/O3 B3 | 6 15 | I/O4 A4 | 7 14 | GND B4 | 8 13 | I/O5 A5 | 9 12 | I/O6 B5 |10 11 | I/O7 ‾‾ ‾‾

Functional Features

• Octal bus buffer with 3-state outputs
• Supports bidirectional data flow
• Provides high-speed signal buffering
• Low power consumption
• Compatible with TTL and CMOS logic levels
• Output enable (OE#) pin for controlling the outputs

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient data transfer - Low power consumption helps in reducing energy usage - 3-state outputs provide flexibility in bus control - Wide supply voltage range enables compatibility with various systems

Disadvantages: - Limited output current may restrict use in certain applications - Propagation delay may affect timing-sensitive operations - Only supports up to 8 channels, which may be insufficient for larger systems

Working Principles

The SN74LVC244ADWRG4 is a buffer/line driver IC that amplifies and buffers digital signals. It operates by receiving input signals on its data inputs (I/O1 to I/O7) and transmitting them to the corresponding outputs. The output enable (OE#) pin controls whether the outputs are active or in a high-impedance state.

When OE# is low, the outputs are enabled and mirror the input signals. When OE# is high, the outputs are disabled and enter a high-impedance state, allowing other devices to drive the bus. This feature is particularly useful in multi-master systems where multiple devices share a common bus.

Detailed Application Field Plans

The SN74LVC244ADWRG4 is commonly used in various applications, including:

1. Microprocessor-based systems: It can be used to interface microprocessors with external memory or peripheral devices.
2. Data communication systems: It can be employed in serial-to-parallel or parallel-to-serial converters, facilitating data transmission between different protocols.
3. Industrial automation: It can be utilized in control systems to buffer and amplify signals from sensors, actuators, and other devices.
4. Automotive electronics: It can be integrated into automotive control units to interface with sensors, switches, and other components.
5. Consumer electronics: It can be employed in devices such as printers, scanners, and audio/video equipment for signal buffering and level shifting.

Detailed and Complete Alternative Models

1. SN74LVC244APWR: Same functionality and package, but available in a different reel quantity (2000 units per reel).
2. SN74LVC244ADGVR: Same functionality and characteristics, but available in a smaller TVSOP-20 package.
3. SN74LVC244ARGYR: Same functionality and package, but RoHS compliant and suitable for lead-free assembly processes.

These alternative models provide similar features and performance, allowing users to choose the most suitable option based on their specific requirements.

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