Texas Instruments
Gambar mungkin merupakan representasi.
Lihat spesifikasi untuk detail produk.
SN74LVC245ADBRG4
Lihat Detail Lembar Data

SN74LVC245ADBRG4

Product Overview

Category

SN74LVC245ADBRG4 belongs to the category of integrated circuits (ICs).

Use

It is commonly used as a bidirectional voltage-level translator and signal buffer.

Characteristics

  • Low-voltage CMOS technology
  • 8-bit wide bus switching
  • Bidirectional data transfer capability
  • High-speed operation
  • Schmitt-trigger inputs for noise immunity
  • 3-state outputs for bus-oriented applications

Package

SN74LVC245ADBRG4 is available in a small-outline package (SOIC) with 20 pins.

Essence

The essence of SN74LVC245ADBRG4 lies in its ability to facilitate voltage level translation and buffering of signals in various electronic systems.

Packaging/Quantity

This product is typically packaged in reels, with each reel containing 2500 units of SN74LVC245ADBRG4.

Specifications

  • Supply Voltage: 1.65V to 5.5V
  • Input Voltage Range: 0V to VCC
  • Output Voltage Range: 0V to VCC
  • Operating Temperature Range: -40°C to +85°C
  • Propagation Delay Time: 2.7ns (typical)
  • Output Current: ±24mA

Detailed Pin Configuration

  1. A1 - Data Input/Output 1
  2. B1 - Data Input/Output 2
  3. A2 - Data Input/Output 3
  4. B2 - Data Input/Output 4
  5. A3 - Data Input/Output 5
  6. B3 - Data Input/Output 6
  7. A4 - Data Input/Output 7
  8. B4 - Data Input/Output 8
  9. GND - Ground
  10. OE - Output Enable
  11. DIR - Direction Control
  12. VCC - Supply Voltage
  13. B5 - Data Input/Output 9
  14. A5 - Data Input/Output 10
  15. B6 - Data Input/Output 11
  16. A6 - Data Input/Output 12
  17. B7 - Data Input/Output 13
  18. A7 - Data Input/Output 14
  19. B8 - Data Input/Output 15
  20. A8 - Data Input/Output 16

Functional Features

  • Bidirectional voltage-level translation between two different voltage domains.
  • Acts as a buffer to isolate and strengthen signals.
  • Supports high-speed data transfer.
  • Schmitt-trigger inputs provide noise immunity.
  • 3-state outputs allow for bus-oriented applications.

Advantages and Disadvantages

Advantages

  • Wide operating voltage range.
  • Fast propagation delay time.
  • Noise-immune inputs.
  • Suitable for bidirectional communication.

Disadvantages

  • Limited number of input/output channels (8-bit).

Working Principles

SN74LVC245ADBRG4 operates by receiving data from one voltage domain, translating it to the desired voltage level, and then transmitting it to another voltage domain. The direction of data transfer is controlled by the DIR pin. When the DIR pin is set to logic high, data flows from A-side to B-side, and when set to logic low, data flows in the opposite direction. The OE pin enables or disables the output buffers.

Detailed Application Field Plans

SN74LVC245ADBRG4 finds applications in various fields, including: 1. Microcontroller interfacing with different voltage peripherals. 2. Level shifting in mixed-voltage systems. 3. Communication interfaces between devices operating at different voltage levels. 4. Bus buffering in digital systems. 5. Signal isolation and strengthening in industrial automation.

Detailed and Complete Alternative Models

  1. SN74LVC245APW - TSSOP package, 20 pins
  2. SN74LVC245ARGYR - VQFN package, 20 pins
  3. SN74LVC245ADGVR - TVSOP package, 20 pins
  4. SN74LVC245ADGVRE4 - TVSOP package, 20 pins (RoHS compliant)

These alternative models offer similar functionality and characteristics to SN74LVC245ADBRG4 but may differ in package type or RoHS compliance.

Word count: 537 words

Sebutkan 10 pertanyaan dan jawaban umum terkait penerapan SN74LVC245ADBRG4 dalam solusi teknis

Sure! Here are 10 common questions and answers related to the application of SN74LVC245ADBRG4 in technical solutions:

  1. Q: What is SN74LVC245ADBRG4? A: SN74LVC245ADBRG4 is a bidirectional octal bus transceiver with 3-state outputs, commonly used for level shifting and voltage translation in digital systems.

  2. Q: What is the operating voltage range of SN74LVC245ADBRG4? A: SN74LVC245ADBRG4 operates within a voltage range of 1.65V to 5.5V.

  3. Q: How many bidirectional channels does SN74LVC245ADBRG4 have? A: SN74LVC245ADBRG4 has 8 bidirectional channels, allowing data transfer in both directions.

  4. Q: What is the maximum data transfer rate supported by SN74LVC245ADBRG4? A: SN74LVC245ADBRG4 supports data transfer rates up to 100 Mbps (megabits per second).

  5. Q: Can SN74LVC245ADBRG4 handle level shifting between different voltage domains? A: Yes, SN74LVC245ADBRG4 can be used for level shifting between different voltage domains, making it suitable for interfacing between devices with different logic levels.

  6. Q: Does SN74LVC245ADBRG4 have built-in ESD protection? A: Yes, SN74LVC245ADBRG4 has built-in ESD (electrostatic discharge) protection, providing robustness against electrostatic events.

  7. Q: What is the power supply current consumption of SN74LVC245ADBRG4? A: The power supply current consumption of SN74LVC245ADBRG4 depends on the operating conditions, but typically ranges from a few microamps to tens of milliamps.

  8. Q: Can SN74LVC245ADBRG4 be used in both 3.3V and 5V systems? A: Yes, SN74LVC245ADBRG4 is compatible with both 3.3V and 5V systems, making it versatile for various applications.

  9. Q: Does SN74LVC245ADBRG4 have any special features for bus isolation? A: Yes, SN74LVC245ADBRG4 has 3-state outputs that can be used for bus isolation, allowing multiple devices to share a common bus without interfering with each other.

  10. Q: What package options are available for SN74LVC245ADBRG4? A: SN74LVC245ADBRG4 is available in various package options, including SOIC (Small Outline Integrated Circuit) and TSSOP (Thin Shrink Small Outline Package).

Please note that these answers are general and may vary depending on specific datasheet specifications and application requirements.