MC74LCX244DTR2G

Product Overview

• Category: Integrated Circuit (IC)
• Use: Logic Level Translator
• Characteristics: Low Voltage, High-Speed, Non-Inverting
• Package: TSSOP-20
• Essence: Logic Level Translation between 5V and 3.3V Systems
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Supply Voltage Range: 1.65V to 3.6V
• Logic Voltage Levels: 5V and 3.3V
• Number of Channels: 8
• Input/Output Type: Non-Inverting
• Maximum Propagation Delay: 4.5ns
• Maximum Operating Frequency: 100MHz
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MC74LCX244DTR2G has a TSSOP-20 package with the following pin configuration:

__ __ A1 | 1 20 | VCC A2 | 2 19 | OE# B1 | 3 18 | I/O1 B2 | 4 17 | I/O2 C1 | 5 16 | I/O3 C2 | 6 15 | I/O4 D1 | 7 14 | GND D2 | 8 13 | I/O5 E1 | 9 12 | I/O6 E2 |10 11 | I/O7 ‾‾ ‾‾

Functional Features

• Logic level translation between 5V and 3.3V systems
• Non-inverting operation preserves signal integrity
• High-speed operation with low propagation delay
• Wide supply voltage range allows compatibility with various systems
• 8 channels for simultaneous translation of multiple signals

Advantages and Disadvantages

Advantages

• Enables seamless communication between 5V and 3.3V devices
• Non-inverting operation avoids signal distortion
• Fast propagation delay ensures minimal signal latency
• Compact TSSOP-20 package saves board space
• Wide operating temperature range for versatile applications

Disadvantages

• Limited to 8 channels, may not be suitable for applications requiring more channels
• Requires external power supply for operation

Working Principles

The MC74LCX244DTR2G is a logic level translator designed to interface between 5V and 3.3V systems. It utilizes non-inverting buffers to convert logic levels while preserving signal integrity. The device operates by receiving input signals from the 5V system and translating them to 3.3V logic levels. Similarly, it can also translate 3.3V signals to 5V logic levels when interfacing with a 3.3V system. The translation process is achieved through the use of internal circuitry that adjusts the voltage levels accordingly.

Detailed Application Field Plans

The MC74LCX244DTR2G finds applications in various fields where logic level translation between 5V and 3.3V systems is required. Some potential application areas include:

1. Microcontroller interfacing: Allows communication between microcontrollers operating at different voltage levels.
2. Sensor networks: Facilitates integration of sensors with different voltage requirements into a single network.
3. Industrial automation: Enables compatibility between different control systems operating at different voltage levels.
4. Communication interfaces: Provides level shifting capabilities for UART, SPI, or I2C interfaces between devices with varying voltage levels.
5. Battery-powered devices: Allows integration of low-power 3.3V components with higher voltage systems.

Detailed and Complete Alternative Models

1. SN74LVC244A: Logic level translator with similar characteristics and pin configuration.
2. 74HCT244: Non-inverting octal buffer/line driver with 5V logic levels.
3. TXB0108: Bi-directional level shifter supporting voltage translation between various logic levels.
4. PCA9306: I2C bus voltage level translator for bidirectional communication between different voltage systems.
5. CD4050B: Hex non-inverting buffer with voltage level shifting capabilities.

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

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