74LCXH16245G

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Logic Level Translator
• Characteristics:
  • Low voltage operation
  • Bidirectional translation capability
  • High-speed operation
  • Wide operating temperature range
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: Logic level translation between different voltage domains
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 1.65V to 3.6V
• Input Voltage Range (A Port): 0V to VCC_A
• Input Voltage Range (B Port): 0V to VCC_B
• Output Voltage Range (A/B Ports): 0V to VCCA/VCCB
• Maximum Input Current: ±50mA
• Maximum Output Current: ±50mA
• Propagation Delay Time: 2.5ns (Max) at 3.3V supply
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The 74LCXH16245G has a total of 48 pins arranged in a TSSOP package. The pin configuration is as follows:

A1 ─────────────── B1 A2 ─────────────── B2 A3 ─────────────── B3 . . . . . . A24 ─────────────── B24 GND ───────────────────── VCC

Functional Features

• Bidirectional Translation: Allows for seamless translation of logic levels between two voltage domains.
• Automatic Direction Control: Eliminates the need for additional control signals by automatically determining the direction of translation based on the input voltage levels.
• High-Speed Operation: Enables fast data transfer between different voltage domains.
• Low Voltage Operation: Supports operation at low supply voltages, making it suitable for battery-powered applications.
• ESD Protection: Provides built-in protection against electrostatic discharge, enhancing reliability.

Advantages

• Wide Operating Temperature Range: Can operate reliably in extreme temperature conditions.
• Small Package Size: The TSSOP package offers a compact form factor, saving board space.
• Easy Integration: Compatible with standard logic families, facilitating seamless integration into existing designs.
• Low Power Consumption: Consumes minimal power, making it energy-efficient.

Disadvantages

• Limited Voltage Range: The 74LCXH16245G is designed for voltage translation within a specific range and may not be suitable for applications requiring translation across a wide range of voltages.
• Sensitivity to Noise: High-speed operation makes it susceptible to noise interference, necessitating proper signal conditioning techniques.

Working Principles

The 74LCXH16245G utilizes a combination of MOSFETs and level-shifting circuitry to achieve bidirectional voltage translation. It automatically detects the input voltage levels and determines the direction of translation. When the input voltage on one side is higher than the other, the IC translates the logic levels from the high-voltage domain to the low-voltage domain and vice versa.

Detailed Application Field Plans

The 74LCXH16245G finds application in various scenarios where logic level translation is required between different voltage domains. Some common application areas include: - Communication systems - Microcontroller interfacing - Memory interfaces - Industrial automation - Consumer electronics

Detailed and Complete Alternative Models

• SN74LVC1T45: Single-bit level translator with similar characteristics and functionality.
• TXB0108: Eight-channel bidirectional level shifter with automatic direction control.
• PCA9306: Dual bidirectional I2C-bus and SMBus voltage-level translator.

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