Encyclopedia Entry: 74LCX162244MEAX

Product Overview

• Category: Integrated Circuit (IC)
• Use: Logic Level Translator
• Characteristics: Low Voltage, High-Speed, Bidirectional
• Package: 48-pin TSSOP (Thin Shrink Small Outline Package)
• Essence: Translates logic levels between different voltage domains
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Logic Family: LCX
• Number of Channels: 16
• Input Voltage Range: 1.65V to 3.6V
• Output Voltage Range: 1.65V to 3.6V
• Propagation Delay: 2.5ns (max)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The 74LCX162244MEAX IC has a total of 48 pins, which are divided into four groups of 12 pins each. The pin configuration is as follows:

Group A (Pins 1-12)

• Pin 1: Output Enable (OE) for channels 1-8
• Pin 2: Channel 1 Input/Output (I/O)
• Pin 3: Channel 2 I/O
• Pin 4: Channel 3 I/O
• Pin 5: Channel 4 I/O
• Pin 6: Channel 5 I/O
• Pin 7: Channel 6 I/O
• Pin 8: Channel 7 I/O
• Pin 9: Channel 8 I/O
• Pin 10: GND (Ground)
• Pin 11: VCC (Power Supply)
• Pin 12: OE for channels 9-16

Group B (Pins 13-24)

• Pins 13-24: Same configuration as Group A, but for channels 9-16

Group C (Pins 25-36)

• Pin 25: Output Enable (OE) for channels 17-24
• Pins 26-36: Same configuration as Group A, but for channels 17-24

Group D (Pins 37-48)

• Pin 37: Output Enable (OE) for channels 25-32
• Pins 38-48: Same configuration as Group A, but for channels 25-32

Functional Features

• Bidirectional voltage level translation between different logic families
• Supports voltage translation from 1.65V to 3.6V
• High-speed operation with a maximum propagation delay of 2.5ns
• Enables interfacing between devices operating at different voltage levels
• Provides signal buffering and isolation between input and output domains

Advantages and Disadvantages

Advantages: - Wide input/output voltage range allows compatibility with various logic families - Fast propagation delay ensures minimal signal distortion during translation - Bidirectional functionality simplifies circuit design and reduces component count - Compact TSSOP package offers space-saving benefits - RoHS compliant and lead-free package

Disadvantages: - Limited to voltage translation within the specified range - Requires careful consideration of power supply requirements for proper operation - May not be suitable for applications requiring higher voltage translation capabilities

Working Principles

The 74LCX162244MEAX is designed to translate logic levels between different voltage domains. It utilizes a combination of CMOS technology and level-shifting circuitry to achieve bidirectional voltage translation. The IC operates by monitoring the input logic levels and translating them to the corresponding output levels based on the specified voltage range. The output enable pins allow individual channel control, enabling selective translation as per the application requirements.

Detailed Application Field Plans

The 74LCX162244MEAX is commonly used in various applications that require voltage level translation between different logic families. Some of the typical application fields include: - Microcontroller interfacing with different peripheral devices - Communication systems involving multiple voltage domains - Data transmission between devices operating at different voltage levels - Mixed-signal circuit designs requiring signal isolation and buffering

Alternative Models

For users seeking alternative options, the following ICs provide similar functionality to the 74LCX162244MEAX: - SN74LVC4245A: Bidirectional voltage-level translator with 8 channels - TXB0108: 8-bit bidirectional voltage-level translator with automatic direction sensing - PCA9306: Dual bidirectional I2C-bus and SMBus voltage-level translator

These alternative models offer comparable features and can be considered based on specific application requirements.

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