MC74VHCT245ADTRG

Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Level Shifter
• Characteristics:
  • High-speed operation
  • Low power consumption
  • Wide voltage range compatibility
  • Bidirectional data transfer capability
• Package: TSSOP-20
• Essence: Logic Level Translator
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 2.0V to 5.5V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Maximum Input Clamp Current: ±20mA
• Maximum Continuous Output Current: ±25mA
• Propagation Delay Time: 6ns (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MC74VHCT245ADTRG has a total of 20 pins arranged as follows:

___________ OE --|1 20|-- VCC A1IN --|2 19|-- B1OUT A2IN --|3 18|-- B2OUT A3IN --|4 17|-- B3OUT A4IN --|5 16|-- B4OUT A5IN --|6 15|-- B5OUT GND --|7 14|-- B6OUT A6IN --|8 13|-- B7OUT A7IN --|9 12|-- B8OUT DIR/DIR --|10 11|-- A8IN -------------

Functional Features

• Bidirectional voltage level shifting between two logic levels
• Allows interfacing between devices operating at different voltage levels
• Enables seamless data transfer between systems with varying voltage requirements
• High-speed operation ensures efficient signal transmission
• Low power consumption for energy-efficient applications

Advantages and Disadvantages

Advantages

• Wide voltage range compatibility allows versatile usage scenarios
• Bidirectional data transfer capability simplifies system design
• High-speed operation enables fast data transmission
• Low power consumption prolongs battery life in portable devices

Disadvantages

• Limited to 8-bit bidirectional data transfer
• Requires careful consideration of voltage level compatibility

Working Principles

The MC74VHCT245ADTRG is a logic level translator that facilitates the bidirectional transfer of digital signals between two systems operating at different voltage levels. It utilizes a combination of CMOS and TTL technologies to achieve high-speed operation while maintaining low power consumption.

The device features eight input/output channels, allowing for the simultaneous translation of up to 8 bits of data. The DIR/DIR pin controls the direction of data flow, enabling both reading from and writing to the connected systems.

By providing a seamless interface between devices with varying voltage requirements, the MC74VHCT245ADTRG simplifies system design and enables efficient data exchange.

Detailed Application Field Plans

The MC74VHCT245ADTRG finds application in various fields where voltage level shifting is required. Some common use cases include:

1. Microcontroller interfacing: Facilitating communication between microcontrollers operating at different voltage levels.
2. Sensor integration: Enabling connectivity between sensors and microcontrollers with varying voltage requirements.
3. Communication protocols: Supporting voltage level translation in serial communication interfaces such as UART, SPI, and I2C.
4. Logic level conversion: Converting logic levels between different families of integrated circuits.

Detailed and Complete Alternative Models

1. SN74LVC245A: Similar bidirectional voltage level translator with 3-state outputs.
2. CD4504B: Hex voltage level shifter with non-inverting outputs.
3. TXS0108EPWR: 8-bit bidirectional voltage level translator with automatic direction sensing.

These alternative models offer similar functionality and can be considered based on specific application requirements.

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