MC74LCX244DTR2

Product Overview

• Category: Integrated Circuit (IC)
• Use: Logic Level Translator
• Characteristics: High-Speed, Low-Voltage, Octal Buffer/Line Driver
• Package: TSSOP-20
• Essence: This IC is designed to provide logic level translation between different voltage domains.
• Packaging/Quantity: The MC74LCX244DTR2 is typically sold in reels of 2500 units.

Specifications

• Supply Voltage: 1.65V to 3.6V
• Logic Family: LCX
• Number of Channels: 8
• Input/Output Compatibility: TTL, LVTTL, LVCMOS
• Propagation Delay: 4.5ns (max) at VCC = 3.3V
• Output Drive Capability: ±24mA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MC74LCX244DTR2 has a TSSOP-20 package with the following pin configuration:

+---+--+---+ OE --|1 +--+ 20|-- VCC A1 --|2 19|-- A2 B1 --|3 18|-- B2 A3 --|4 17|-- A4 B3 --|5 16|-- B4 A5 --|6 15|-- A6 B5 --|7 14|-- B6 A7 --|8 13|-- A8 B7 --|9 12|-- B8 GND -|10 11|-- OE# +----------+

Functional Features

• Provides bidirectional voltage level translation between 1.8V, 2.5V, 3.3V, and 5V logic families.
• Supports high-speed data transmission with a maximum propagation delay of 4.5ns.
• Offers 8 channels for buffering or line driving signals.
• Features a wide operating voltage range from 1.65V to 3.6V.
• Low power consumption and compatibility with various logic standards make it versatile.

Advantages and Disadvantages

Advantages: - Enables seamless communication between different voltage domains. - High-speed operation allows for efficient data transfer. - Compact TSSOP-20 package saves board space. - Wide operating voltage range provides flexibility in system design.

Disadvantages: - Limited number of channels may not be suitable for applications requiring more than 8 signal lines. - Propagation delay may impact timing-sensitive applications.

Working Principles

The MC74LCX244DTR2 utilizes a combination of MOSFETs and CMOS technology to achieve voltage level translation. It employs a voltage divider network to shift the logic levels between input and output pins, ensuring compatibility between different voltage domains.

Detailed Application Field Plans

The MC74LCX244DTR2 finds applications in various fields, including:

1. Embedded Systems: Used for interfacing microcontrollers with different voltage peripherals.
2. Communication Systems: Facilitates level translation between different communication protocols.
3. Industrial Automation: Enables communication between devices operating at different voltage levels.
4. Consumer Electronics: Allows integration of components with varying logic voltage requirements.
5. Automotive Electronics: Used for level shifting in automotive control systems.

Detailed and Complete Alternative Models

1. SN74LVC244A: Octal Buffer/Line Driver with 3-State Outputs
2. 74HC244: Octal Buffer/Line Driver with 3-State Outputs
3. CD74HCT244: High-Speed CMOS Logic Octal Buffer/Line Driver

These alternative models offer similar functionality and can be considered as substitutes for the MC74LCX244DTR2 in various applications.

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