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SN74AVC4T245DR
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SN74AVC4T245DR

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Level Shifter and Translator
  • Characteristics: Bidirectional Voltage-Level Translation, 4-Bit Bus Transceiver with 3-State Outputs
  • Package: SOIC (Small Outline Integrated Circuit)
  • Essence: This IC allows bidirectional voltage-level translation between different logic levels, making it suitable for interfacing between devices operating at different voltage levels.
  • Packaging/Quantity: Available in tape and reel packaging, with a quantity of 2500 units per reel.

Specifications

  • Supply Voltage Range: 1.2V to 3.6V
  • High-Level Input Voltage: 0.7 x Vcc
  • Low-Level Input Voltage: 0.3 x Vcc
  • High-Level Output Voltage: 0.9 x Vcc
  • Low-Level Output Voltage: 0.1 x Vcc
  • Maximum Operating Frequency: 100 MHz
  • Number of Channels: 4
  • Output Drive Capability: ±24 mA
  • ESD Protection: Human Body Model (HBM) ±2000V, Machine Model (MM) ±200V

Detailed Pin Configuration

The SN74AVC4T245DR has a total of 16 pins, which are assigned as follows:

  • Pin 1: OE (Output Enable)
  • Pin 2: A1 (Channel A Control Input)
  • Pin 3: I/O1 (Channel A Data Input/Output)
  • Pin 4: GND (Ground)
  • Pin 5: I/O2 (Channel B Data Input/Output)
  • Pin 6: A2 (Channel B Control Input)
  • Pin 7: VCC (Supply Voltage)
  • Pin 8: B1 (Channel C Control Input)
  • Pin 9: I/O3 (Channel C Data Input/Output)
  • Pin 10: GND (Ground)
  • Pin 11: I/O4 (Channel D Data Input/Output)
  • Pin 12: B2 (Channel D Control Input)
  • Pin 13: VCC (Supply Voltage)
  • Pin 14: DIR (Direction Control Input)
  • Pin 15: GND (Ground)
  • Pin 16: VCC (Supply Voltage)

Functional Features

  • Bidirectional voltage-level translation between different logic levels.
  • 3-state outputs allow multiple devices to share a common bus.
  • Automatic direction control based on the DIR input signal.
  • Low power consumption and high-speed operation.
  • ESD protection for robustness against electrostatic discharge.

Advantages and Disadvantages

Advantages: - Enables seamless communication between devices operating at different voltage levels. - Supports bidirectional data transfer. - Provides 3-state outputs for bus sharing. - Offers ESD protection for enhanced reliability.

Disadvantages: - Limited to 4-bit bus transceiver functionality. - Maximum operating frequency may not be sufficient for certain high-speed applications.

Working Principles

The SN74AVC4T245DR operates by receiving input signals from one logic level and translating them to another logic level. The direction of data flow is controlled by the DIR input pin. When DIR is set to a specific logic level, the corresponding channel is enabled for data transfer in that direction. The OE pin can be used to globally enable or disable all channels. The IC ensures bidirectional voltage-level translation while maintaining compatibility between different logic families.

Detailed Application Field Plans

The SN74AVC4T245DR is commonly used in various applications, including:

  1. IoT Devices: Facilitates communication between low-power microcontrollers and sensors operating at different voltage levels.
  2. Mobile Devices: Enables voltage-level translation between application processors and peripheral components.
  3. Industrial Automation: Allows interfacing between different logic families used in control systems and sensors.
  4. Automotive Electronics: Supports voltage-level translation between microcontrollers and various automotive modules.

Detailed and Complete Alternative Models

  1. SN74AVC4T245DCTR: Similar to SN74AVC4T245DR, but available in a smaller package (TSSOP) for space-constrained applications.
  2. SN74LVC4T245PW: Provides similar functionality with lower power consumption, suitable for battery-powered devices.
  3. SN74HCT245N: Offers bidirectional voltage-level translation with higher drive capability, ideal for industrial applications requiring robust signal transmission.

(Note: The above alternative models are just a few examples and not an exhaustive list.)

In conclusion, the SN74AVC4T245DR is a 4-bit bus transceiver IC that enables bidirectional voltage-level translation between different logic levels. It offers several functional features, advantages, and application possibilities, making it a versatile choice for various electronic systems.

Lista 10 Vanliga frågor och svar relaterade till tillämpningen av SN74AVC4T245DR i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of SN74AVC4T245DR in technical solutions:

  1. Q: What is SN74AVC4T245DR? A: SN74AVC4T245DR is a 4-bit dual-supply voltage level translator with configurable voltage translation and integrated ESD protection.

  2. Q: What is the purpose of SN74AVC4T245DR? A: SN74AVC4T245DR is used for bidirectional voltage level translation between different voltage domains in electronic circuits.

  3. Q: What voltage levels can SN74AVC4T245DR translate? A: SN74AVC4T245DR can translate voltage levels between 1.2V and 3.6V.

  4. Q: How many channels does SN74AVC4T245DR have? A: SN74AVC4T245DR has 4 bidirectional channels, allowing for simultaneous translation of up to 4 signals.

  5. Q: Can SN74AVC4T245DR handle high-speed data transmission? A: Yes, SN74AVC4T245DR supports high-speed data transmission up to 100 Mbps.

  6. Q: Is SN74AVC4T245DR suitable for I2C or SPI communication? A: Yes, SN74AVC4T245DR is commonly used for voltage level translation in I2C and SPI communication interfaces.

  7. Q: Does SN74AVC4T245DR require external pull-up or pull-down resistors? A: No, SN74AVC4T245DR has built-in weak pull-up and pull-down resistors for open-drain outputs.

  8. Q: Can SN74AVC4T245DR handle level shifting between different supply voltages? A: Yes, SN74AVC4T245DR can translate signals between different supply voltages, such as 3.3V and 1.8V.

  9. Q: Does SN74AVC4T245DR have any built-in protection features? A: Yes, SN74AVC4T245DR has integrated ESD protection to safeguard against electrostatic discharge events.

  10. Q: What package options are available for SN74AVC4T245DR? A: SN74AVC4T245DR is available in various package options, including SOIC, VQFN, and DSBGA, to suit different application requirements.

Please note that these answers are general and may vary depending on the specific implementation and datasheet of SN74AVC4T245DR.