Texas Instruments
Gambar mungkin merupakan representasi.
Lihat spesifikasi untuk detail produk.
SN74LVC244APWRE4
Lihat Detail Lembar Data

SN74LVC244APWRE4

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Buffer/Line Driver
  • Characteristics: Low Voltage, CMOS Logic, Octal Bus Buffer
  • Package: TSSOP-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 Buffers/Drivers: 8
  • Output Current: ±24 mA
  • Propagation Delay Time: 2.9 ns (Max) at 3.3V
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The SN74LVC244APWRE4 has a TSSOP-20 package with the following pin configuration:

__ __ 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 buffer with 3-state outputs
  • Compatible with TTL and CMOS logic levels
  • High-speed operation with low power consumption
  • Supports bidirectional data flow
  • Provides output current drive capability for heavily loaded bus systems

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows compatibility with various systems - Low propagation delay time enables high-speed data transmission - 3-state outputs provide flexibility in controlling bus lines

Disadvantages: - Limited output current may not be suitable for driving highly capacitive loads - TSSOP package may require careful handling during assembly

Working Principles

The SN74LVC244APWRE4 is a buffer/line driver IC that amplifies and buffers digital signals. It operates on a wide supply voltage range, making it suitable for use in different electronic systems. The inputs are compatible with both TTL and CMOS logic levels, allowing seamless integration with various devices.

The octal buffer has 3-state outputs, which means it can be enabled or disabled to control the flow of data on the bus lines. This feature provides flexibility in multi-device communication scenarios. The IC also offers output current drive capability, ensuring reliable signal transmission even in heavily loaded bus systems.

Detailed Application Field Plans

The SN74LVC244APWRE4 is commonly used in applications where buffering and line driving are required. Some typical application fields include:

  1. Microcontrollers and Microprocessors: The IC can be used to interface microcontrollers and microprocessors with external devices, such as memory modules, displays, and sensors.

  2. Communication Systems: It is suitable for buffering and driving signals in communication systems, including UART, SPI, I2C, and CAN bus interfaces.

  3. Industrial Automation: The IC finds applications in industrial automation systems, where it can be used to amplify and buffer signals in control circuits, motor drives, and sensor interfaces.

  4. Automotive Electronics: It is used in automotive electronics for signal conditioning, level shifting, and driving various components, such as sensors, actuators, and displays.

Detailed and Complete Alternative Models

  1. SN74LVC244A: Similar to SN74LVC244APWRE4 but with a different package (SOIC-20).
  2. MC74LVX244: A compatible alternative from another manufacturer (Motorola) with similar specifications and pin configuration.
  3. 74HC244: An alternative IC with TTL logic levels and higher output current capability.

These alternative models provide options based on package preferences, availability, and specific application requirements.

Word count: 516 words

Sebutkan 10 pertanyaan dan jawaban umum terkait penerapan SN74LVC244APWRE4 dalam solusi teknis

Sure! Here are 10 common questions and answers related to the application of SN74LVC244APWRE4:

  1. Q: What is SN74LVC244APWRE4? A: SN74LVC244APWRE4 is a non-inverting octal buffer and line driver with 3-state outputs, commonly used in digital logic circuits.

  2. Q: What is the operating voltage range for SN74LVC244APWRE4? A: The operating voltage range for SN74LVC244APWRE4 is typically between 1.65V and 5.5V.

  3. Q: What is the maximum output current that SN74LVC244APWRE4 can drive? A: SN74LVC244APWRE4 can drive up to 24mA of output current per channel.

  4. Q: Can SN74LVC244APWRE4 be used as a level shifter? A: Yes, SN74LVC244APWRE4 can be used as a level shifter to convert signals between different voltage levels.

  5. Q: How many channels does SN74LVC244APWRE4 have? A: SN74LVC244APWRE4 has 8 channels, making it suitable for applications requiring multiple signal buffering.

  6. Q: What is the propagation delay of SN74LVC244APWRE4? A: The propagation delay of SN74LVC244APWRE4 is typically around 4.3ns.

  7. Q: Is SN74LVC244APWRE4 compatible with both CMOS and TTL logic levels? A: Yes, SN74LVC244APWRE4 is compatible with both CMOS and TTL logic levels, making it versatile for various applications.

  8. Q: Can SN74LVC244APWRE4 be used in bidirectional data transfer applications? A: Yes, SN74LVC244APWRE4 can be used in bidirectional data transfer applications by enabling the 3-state outputs.

  9. Q: What is the package type of SN74LVC244APWRE4? A: SN74LVC244APWRE4 comes in a TSSOP-20 package, which is compact and suitable for space-constrained designs.

  10. Q: Are there any recommended decoupling capacitors for SN74LVC244APWRE4? A: It is recommended to place a 0.1µF decoupling capacitor between VCC and GND pins near the device to ensure stable operation.

Please note that these answers are general and may vary depending on specific application requirements. Always refer to the datasheet and consult with an engineer for accurate information.