SN74LVC244ADGVRG4

Product Overview

• Category: Integrated Circuit
• Use: Buffer/Line Driver
• Characteristics: Low Voltage, CMOS Logic, Octal Bus Buffer
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: High-speed, low-power buffer with 3-state outputs
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

The SN74LVC244ADGVRG4 is an octal bus buffer that operates at a low voltage and utilizes CMOS logic. It is designed to provide high-speed buffering and line driving capabilities for various digital systems. The device features 3-state outputs, allowing multiple devices to be connected to a common bus without any conflicts.

Key specifications of the SN74LVC244ADGVRG4 include:

• Supply Voltage Range: 1.65V to 5.5V
• High-Speed Operation: 20 ns maximum propagation delay
• Low Power Consumption: ICC = 4µA maximum
• Output Drive Capability: ±24mA
• ESD Protection: Human Body Model > 2000V

Pin Configuration

The SN74LVC244ADGVRG4 has a total of 20 pins, which are arranged in a TSSOP package. The pin configuration is as follows:

Pin 1: A1 Pin 2: Y1 Pin 3: A2 Pin 4: Y2 Pin 5: GND Pin 6: Y3 Pin 7: A3 Pin 8: Y4 Pin 9: VCC Pin 10: Y5 Pin 11: A4 Pin 12: Y6 Pin 13: A5 Pin 14: Y7 Pin 15: GND Pin 16: Y8 Pin 17: OE# Pin 18: GND Pin 19: A6 Pin 20: A7

Functional Features

The SN74LVC244ADGVRG4 offers the following functional features:

• Octal Buffer: Provides buffering for up to eight input lines.
• 3-State Outputs: Allows multiple devices to be connected to a common bus without any conflicts.
• Low Voltage Operation: Operates at a supply voltage as low as 1.65V, making it suitable for low-power applications.
• High-Speed Operation: Offers a maximum propagation delay of 20 ns, ensuring fast data transmission.
• ESD Protection: Incorporates ESD protection to safeguard against electrostatic discharge.

Advantages and Disadvantages

Advantages of the SN74LVC244ADGVRG4 include:

• Low power consumption
• High-speed operation
• 3-state outputs for bus sharing
• Wide supply voltage range

Disadvantages of the SN74LVC244ADGVRG4 include:

• Limited output drive capability
• TSSOP package may require careful handling during assembly

Working Principles

The SN74LVC244ADGVRG4 operates by receiving input signals on its eight input pins (A1-A7) and driving the corresponding output pins (Y1-Y8) based on the logic levels of the inputs. The OE# pin is used to enable or disable the outputs. When the OE# pin is high, the outputs are in the high-impedance state (disconnected from the bus), allowing other devices to drive the bus. When the OE# pin is low, the outputs are active and mirror the logic levels of the inputs.

Detailed Application Field Plans

The SN74LVC244ADGVRG4 is commonly used in various digital systems where buffering and line driving capabilities are required. Some specific application fields include:

1. Microcontrollers: The buffer can be used to interface microcontrollers with other devices, such as memory chips or peripheral modules.
2. Communication Systems: It can be employed in communication systems to amplify and drive signals between different components.
3. Industrial Automation: The buffer finds applications in industrial automation systems for signal conditioning and level shifting purposes.
4. Automotive Electronics: It can be utilized in automotive electronics for data bus buffering and signal isolation.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the SN74LVC244ADGVRG4 include:

1. 74HC244: This is a popular alternative that operates at a higher voltage range (2V to 6V) but offers comparable performance.
2. SN74LVCH244A: This model operates at a lower voltage range (1.65V to 3.6V) and provides improved ESD