SN74LVTH244ADW

Product Overview

• Category: Integrated Circuit (IC)
• Use: Buffer/Line Driver
• Characteristics:
  • Low-voltage, high-speed CMOS technology
  • 3-state outputs for bus-oriented applications
  • Schmitt-trigger inputs for noise immunity
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Provides buffering and line driving capabilities in various electronic systems
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Supply Voltage Range: 2.7V to 3.6V
• High-Level Input Voltage: 2.0V (min), 3.85V (max)
• Low-Level Input Voltage: 0.8V (min), 1.15V (max)
• High-Level Output Voltage: 2.4V (min), VCC (max)
• Low-Level Output Voltage: GND (min), 0.4V (max)
• Maximum Operating Frequency: 200MHz
• Number of Pins: 20

Pin Configuration

The SN74LVTH244ADW IC has a total of 20 pins, which are assigned as follows:

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

Functional Features

• Provides 8-bit buffer/line driver functionality
• 3-state outputs allow multiple devices to share a common bus
• Schmitt-trigger inputs ensure noise immunity and signal integrity
• High-speed operation suitable for bus-oriented applications

Advantages and Disadvantages

Advantages: - Low-voltage operation allows compatibility with various systems - High-speed CMOS technology enables fast data transmission - Schmitt-trigger inputs provide noise immunity, reducing errors

Disadvantages: - Limited operating frequency compared to some other ICs - Requires careful handling due to sensitivity to electrostatic discharge

Working Principles

The SN74LVTH244ADW operates by receiving input signals on the A1-A7 pins. These signals are then buffered and amplified before being transmitted to the corresponding Y1-Y8 output pins. The OE# pins control the output enable/disable functionality, allowing the device to be put into a high-impedance state when not in use.

Detailed Application Field Plans

The SN74LVTH244ADW is commonly used in various electronic systems where buffering and line driving capabilities are required. Some specific application fields include:

1. Microcontrollers: Used to interface microcontrollers with external devices such as LCD displays, memory modules, and sensors.
2. Communication Systems: Enables signal amplification and level shifting in communication interfaces like UART, SPI, and I2C.
3. Industrial Automation: Provides signal buffering in PLC (Programmable Logic Controller) systems for reliable data transmission.
4. Automotive Electronics: Used in automotive control units to drive signals between different subsystems.

Detailed and Complete Alternative Models

1. SN74LVC244A: Similar functionality but operates at a lower voltage range of 1.65V to 3.6V.
2. SN74HCT244: Higher operating frequency of up to 25MHz but requires a higher supply voltage of 4.5V to 5.5V.
3. SN74ACT244: Offers faster switching speeds but requires a higher supply voltage of 4.5V to 5.5V.

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