74LVTH16646MEA

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Logic Level Translator
• Characteristics:
  • High-speed operation
  • Low power consumption
  • Wide voltage range compatibility
• Package: 48-pin TSSOP (Thin Shrink Small Outline Package)
• Essence: Logic level translation between different voltage domains
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Supply Voltage Range: 1.2V to 3.6V
• Input Voltage Range (Vref): GND to VCC
• Output Voltage Range (A/B/Y): GND to VCC
• Maximum Input Current: ±10mA
• Maximum Output Current: ±32mA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The 74LVTH16646MEA has a total of 48 pins, which are divided into four groups: A, B, Y, and control pins. The pin configuration is as follows:

• Group A (pins 1-12):

  • A1-A6: Data inputs for Port A
  • OEAB: Output Enable for Port A
  • CLKAB: Clock input for Port A

• Group B (pins 13-24):

  • B1-B6: Data inputs for Port B
  • OEBB: Output Enable for Port B
  • CLKBB: Clock input for Port B

• Group Y (pins 25-36):

  • Y1-Y6: Data outputs for Port Y
  • OEY: Output Enable for Port Y
  • CLKY: Clock input for Port Y

• Control Pins (pins 37-48):

  • GND: Ground
  • VCC: Power supply voltage
  • OEAB/OEBB: Output Enable for Ports A and B
  • CLKAB/CLKBB: Clock inputs for Ports A and B
  • OEY: Output Enable for Port Y
  • CLKY: Clock input for Port Y

Functional Features

• Logic Level Translation: The 74LVTH16646MEA is designed to translate logic levels between different voltage domains, allowing communication between devices operating at different voltage levels.
• Bidirectional Data Flow: It supports bidirectional data transfer between Ports A and B, with Port Y serving as the output port.
• High-Speed Operation: The IC operates at high speeds, making it suitable for applications requiring fast data transmission.
• Low Power Consumption: It consumes low power, making it energy-efficient and suitable for battery-powered devices.
• Wide Voltage Range Compatibility: The IC can handle a wide range of supply voltages, from 1.2V to 3.6V, providing flexibility in various applications.

Advantages

• Efficient Logic Level Translation: Enables seamless communication between devices operating at different voltage levels.
• Fast Data Transfer: High-speed operation allows for quick data transmission.
• Low Power Consumption: Helps conserve energy, making it suitable for portable and battery-powered devices.
• Wide Voltage Range Compatibility: Provides flexibility in designing systems with varying voltage requirements.

Disadvantages

• Limited Pin Count: The 48-pin package may be insufficient for complex systems requiring a larger number of I/O pins.
• Not Suitable for High-Voltage Applications: The IC's voltage range is limited to 1.2V to 3.6V, making it unsuitable for high-voltage applications.

Working Principles

The 74LVTH16646MEA utilizes a combination of CMOS (Complementary Metal-Oxide-Semiconductor) and TTL (Transistor-Transistor Logic) technologies to achieve logic level translation. It employs a voltage level shifting technique to ensure proper signal transfer between different voltage domains. The control pins allow for enabling/disabling the data flow and clock synchronization.

Detailed Application Field Plans

The 74LVTH16646MEA is commonly used in various applications, including: - Microcontroller interfacing - Communication systems - Data acquisition systems - Industrial automation - Automotive electronics

Detailed and Complete Alternative Models

• SN74LVC4245A: Octal Bus Transceiver with Voltage-Level Shifting
• CD4504B: Hex Voltage-Level Shifter for TTL-to-CMOS/CMOS-to-TTL Applications
• TXS0108EPWR: 8-Bit Bidirectional Voltage-Level Translator with Automatic Direction Control

These alternative models offer similar functionality and can be considered as substitutes for the 74LVTH16646MEA in specific applications.

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