Encyclopedia Entry: 74LVTH162245ZQLR

Product Overview

Category

The 74LVTH162245ZQLR belongs to the category of integrated circuits (ICs). Specifically, it falls under the category of bus transceivers.

Use

This IC is primarily used for bidirectional level shifting and voltage translation between two buses operating at different voltage levels. It enables seamless communication between devices with varying voltage requirements.

Characteristics

• Bidirectional voltage translation
• Supports voltage levels from 1.2V to 3.6V
• High-speed operation
• Low power consumption
• Schmitt-trigger inputs for noise immunity
• 16-bit wide transceiver with 3-state outputs

Package

The 74LVTH162245ZQLR is available in a Quad Flat No-Lead (QFN) package. This package offers a compact size and excellent thermal performance.

Essence

The essence of this IC lies in its ability to facilitate reliable data transfer between buses operating at different voltage levels. It ensures compatibility and seamless communication in mixed-voltage systems.

Packaging/Quantity

The 74LVTH162245ZQLR is typically sold in reels containing a specified quantity of ICs. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Supply Voltage Range: 1.2V to 3.6V
• Input Voltage Levels:
  • High-Level Input Voltage (VIH): 0.7 x VCC to VCC + 0.3V
  • Low-Level Input Voltage (VIL): -0.3V to 0.3 x VCC
• Output Voltage Levels:
  • High-Level Output Voltage (VOH): VCC - 0.4V
  • Low-Level Output Voltage (VOL): 0.4V
• Operating Temperature Range: -40°C to 85°C
• Maximum Propagation Delay: 4.5ns

Detailed Pin Configuration

The 74LVTH162245ZQLR has a total of 48 pins, which are organized as follows:

• Pins 1-8: Port A (Input/Output)
• Pins 9-16: Port B (Input/Output)
• Pins 17-24: Port C (Input/Output)
• Pins 25-32: Port D (Input/Output)
• Pins 33-40: Port OE (Output Enable)
• Pins 41-48: GND (Ground) and VCC (Power Supply)

Functional Features

• Bidirectional data transfer between two buses with different voltage levels
• Automatic direction control based on the direction of data flow
• 3-state outputs for high impedance when not actively transmitting data
• Schmitt-trigger inputs for improved noise immunity
• Supports high-speed operation for efficient data transfer

Advantages and Disadvantages

Advantages

• Enables seamless communication between devices with different voltage requirements
• Low power consumption
• High-speed operation
• Compact package size
• Noise-immune inputs for reliable data transmission

Disadvantages

• Limited to 16-bit wide bus transceiver functionality
• Requires careful consideration of voltage compatibility between connected devices

Working Principles

The 74LVTH162245ZQLR operates by monitoring the direction of data flow between two buses. It automatically adjusts its internal circuitry to ensure bidirectional data transfer while maintaining voltage compatibility. The IC utilizes Schmitt-trigger inputs to improve noise immunity and minimize errors during data transmission.

Detailed Application Field Plans

The 74LVTH162245ZQLR finds applications in various fields where voltage translation and level shifting are required. Some potential application areas include: - Mixed-voltage systems in consumer electronics - Industrial automation and control systems - Communication equipment and networking devices - Automotive electronics - Medical devices

Detailed and Complete Alternative Models

While the 74LVTH162245ZQLR offers specific features and characteristics, there are alternative models available in the market that serve similar purposes. Some notable alternatives include: - SN74LVC245A: 8-bit bus transceiver with similar voltage translation capabilities - MC74VHC245: 8-bit high-speed CMOS bus transceiver - CD74HCT245: Octal bus transceiver with 3-state outputs

These alternative models provide flexibility in choosing the most suitable IC based on specific requirements and system constraints.

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