SN74LVC244APWT

Product Overview

• Category: Integrated Circuit (IC)
• 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

• Supply Voltage Range: 1.65V to 5.5V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Maximum Operating Frequency: 80MHz
• Number of Channels: 8
• Output Current: ±24mA
• Propagation Delay Time: 4.2ns (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The SN74LVC244APWT has a total of 20 pins, which are arranged as follows:

__ __ A1 |1 \__/ 20| VCC B1 |2 19| B2 A2 |3 18| A3 B3 |4 17| B4 A4 |5 16| A5 B5 |6 15| B6 A6 |7 14| A7 B7 |8 13| B8 GND |9 12| OE# Y1 |10 11| Y2 ----------

Functional Features

• High-speed operation allows for efficient data transfer.
• Low power consumption makes it suitable for battery-powered devices.
• 3-state outputs enable multiple devices to share a common bus.
• Wide supply voltage range allows for compatibility with various systems.
• ESD (Electrostatic Discharge) protection ensures reliability.

Advantages and Disadvantages

Advantages: - High-speed operation enables fast data transfer. - Low power consumption prolongs battery life in portable devices. - 3-state outputs facilitate bus sharing among multiple devices. - Wide supply voltage range enhances compatibility. - ESD protection ensures reliability in harsh environments.

Disadvantages: - Limited output current may restrict use in certain applications. - Propagation delay time may affect timing-sensitive operations. - TSSOP package may require careful handling during assembly.

Working Principles

The SN74LVC244APWT is an octal buffer with 3-state outputs. It operates using CMOS logic, which provides high-speed performance while consuming low power. The inputs are compatible with both TTL and CMOS voltage levels, allowing for easy integration into various systems. The 3-state outputs enable the device to be connected to a common bus, where multiple devices can share the same communication lines without interfering with each other.

Detailed Application Field Plans

The SN74LVC244APWT is commonly used in various electronic systems, including:

1. Microcontrollers: It acts as a buffer between the microcontroller and external devices, ensuring proper signal transmission and preventing damage to the microcontroller's output pins.
2. Memory Systems: It facilitates data transfer between memory modules and the memory controller, enabling efficient read and write operations.
3. Communication Interfaces: It serves as a line driver in UART (Universal Asynchronous Receiver-Transmitter) and SPI (Serial Peripheral Interface) interfaces, ensuring reliable data transmission over long distances.
4. Industrial Automation: It is utilized in control systems to interface between sensors, actuators, and the main controller, enabling efficient communication and control of industrial processes.

Detailed and Complete Alternative Models

1. SN74LVC244A: Similar to SN74LVC244APWT, but available in different package options such as SOIC (Small Outline Integrated Circuit) and PDIP (Plastic Dual In-Line Package).
2. SN74LVCH244A: Offers similar functionality with lower voltage operation (1.65V to 3.6V), making it suitable for low-power applications.
3. SN74HCT244: Provides compatibility with TTL logic levels, making it suitable for systems that use both CMOS and TTL devices.

These alternative models offer similar functionality to the SN74LVC244APWT, allowing users to choose the most suitable option based on their specific requirements.

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