ON Semiconductor
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74LCXR2245MTCX
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74LCXR2245MTCX

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Level Shifter and Bus Transceiver
  • Characteristics: Bi-directional voltage level translation, high-speed operation, low power consumption
  • Package: TSSOP-20
  • Essence: The 74LCXR2245MTCX is a level shifter and bus transceiver IC that allows for bi-directional voltage level translation between two different voltage domains. It is commonly used in applications where interfacing between devices operating at different voltage levels is required.
  • Packaging/Quantity: The 74LCXR2245MTCX is typically sold in reels or tubes containing multiple units.

Specifications

  • Supply Voltage Range: 1.65V to 3.6V
  • High-Level Input Voltage: 0.7 x VCC to VCC + 0.3V
  • Low-Level Input Voltage: -0.3V to 0.3 x VCC
  • Output Voltage Range: 0V to VCC
  • Maximum Operating Frequency: 100MHz
  • Number of Channels: 8

Detailed Pin Configuration

The 74LCXR2245MTCX has a total of 20 pins, which are assigned as follows:

  • Pin 1: A1
  • Pin 2: OE#
  • Pin 3: B1
  • Pin 4: B2
  • Pin 5: GND
  • Pin 6: B3
  • Pin 7: B4
  • Pin 8: B5
  • Pin 9: B6
  • Pin 10: VCC
  • Pin 11: A2
  • Pin 12: DIR
  • Pin 13: A3
  • Pin 14: A4
  • Pin 15: A5
  • Pin 16: A6
  • Pin 17: A7
  • Pin 18: A8
  • Pin 19: GND
  • Pin 20: B7

Functional Features

  • Bi-directional voltage level translation between two voltage domains.
  • High-speed operation, allowing for efficient data transfer.
  • Low power consumption, making it suitable for battery-powered devices.
  • Enable input (OE#) to control the direction of data flow.
  • DIR pin to select the direction of data transmission.

Advantages and Disadvantages

Advantages: - Allows interfacing between devices operating at different voltage levels. - Supports high-speed data transfer. - Low power consumption extends battery life in portable applications.

Disadvantages: - Limited to a maximum operating frequency of 100MHz. - May require additional external components for certain applications.

Working Principles

The 74LCXR2245MTCX operates by utilizing a combination of MOSFETs and CMOS logic to achieve bi-directional voltage level translation. The direction of data flow is controlled by the DIR pin, while the OE# pin enables or disables the device. When enabled, the IC translates the voltage levels of signals from one domain to another, allowing for seamless communication between devices operating at different voltage levels.

Detailed Application Field Plans

The 74LCXR2245MTCX finds application in various scenarios where voltage level translation is required. Some common application fields include:

  1. IoT Devices: Facilitating communication between low-power sensors and microcontrollers operating at different voltage levels.
  2. Mobile Devices: Enabling data transfer between different voltage domains within smartphones and tablets.
  3. Industrial Automation: Interfacing between control systems and peripheral devices operating at different voltage levels.
  4. Automotive Electronics: Level shifting between different voltage domains in automotive communication networks.

Detailed and Complete Alternative Models

  1. TXB0108PWR: 8-bit Bi-directional Voltage-Level Translator with Automatic Direction Sensing.
  2. SN74LVC4245APW: Octal Bus Transceiver with 3-State Outputs.
  3. PCA9306DCUR: Dual Bidirectional I2C-Bus and SMBus Voltage-Level Translator.

These alternative models offer similar functionality to the 74LCXR2245MTCX and can be considered as alternatives based on specific application requirements.

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Liste 10 almindelige spørgsmål og svar relateret til anvendelsen af 74LCXR2245MTCX i tekniske løsninger

Sure! Here are 10 common questions and answers related to the application of 74LCXR2245MTCX in technical solutions:

  1. Q: What is the purpose of the 74LCXR2245MTCX? A: The 74LCXR2245MTCX is a bidirectional voltage level translator used to convert signals between different voltage domains.

  2. Q: What voltage levels can the 74LCXR2245MTCX translate? A: It can translate signals between two voltage domains, typically between 1.2V and 3.6V.

  3. Q: How many channels does the 74LCXR2245MTCX have? A: It has 8 bidirectional channels, allowing for simultaneous translation of multiple signals.

  4. Q: Can the 74LCXR2245MTCX handle high-speed data transmission? A: Yes, it is designed to support high-speed data rates up to 100 Mbps.

  5. Q: Is the 74LCXR2245MTCX suitable for I2C or SPI interfaces? A: Yes, it can be used for translating signals in I2C or SPI communication protocols.

  6. Q: Does the 74LCXR2245MTCX require external power supply voltages? A: Yes, it requires separate VCCA and VCCB power supplies for each voltage domain.

  7. Q: Can the 74LCXR2245MTCX handle level shifting between different logic families? A: Yes, it can translate signals between various logic families such as CMOS, TTL, and LVCMOS.

  8. Q: What is the maximum current that the 74LCXR2245MTCX can source/sink? A: It can source/sink up to 24 mA of current per channel.

  9. Q: Can the 74LCXR2245MTCX be used in both 3.3V and 5V systems? A: Yes, it is compatible with both 3.3V and 5V systems, making it versatile for different applications.

  10. Q: Are there any special considerations when using the 74LCXR2245MTCX in a mixed-voltage system? A: It is important to ensure that the voltage levels of the input and output signals are within the specified range to avoid damaging the device or causing signal integrity issues.

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