MC74LVX4245DT

Overview

Category: Integrated Circuit (IC)

Use: Level Shifter and Voltage Translator

Characteristics: - Low-voltage CMOS technology - Bidirectional voltage translation - Wide operating voltage range - High-speed operation - 8-bit wide data bus - Non-inverting outputs - 3-state outputs - ESD protection

Package: SOIC-20

Essence: The MC74LVX4245DT is an integrated circuit that provides bidirectional voltage translation between two different voltage levels. It is commonly used to interface between devices operating at different voltage levels, ensuring proper signal transfer.

Packaging/Quantity: The MC74LVX4245DT is available in a standard SOIC-20 package. Each package contains one IC.

Specifications

• Supply Voltage Range: 1.65V to 5.5V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Maximum Operating Frequency: 100MHz
• Number of Channels: 8
• Input/Output Type: Non-Inverting
• Output Drive Capability: ±24mA
• ESD Protection: Human Body Model > 2000V

Pin Configuration

The MC74LVX4245DT has a total of 20 pins arranged as follows:

+-------------------+ OE1 |1 20| VCC A1 |2 19| B1 A2 |3 18| B2 A3 |4 17| B3 A4 |5 MC74LVX4245DT | B4 A5 |6 15| B5 A6 |7 14| B6 A7 |8 13| B7 A8 |9 12| B8 GND |10 11| OE2 +-------------------+

Functional Features

• Bidirectional voltage translation: Allows for seamless communication between devices operating at different voltage levels.
• Non-inverting outputs: Ensures that the output signal maintains the same logic level as the input signal.
• 3-state outputs: Provides the ability to disable the outputs, allowing multiple devices to share a common bus.
• ESD protection: Protects the IC from damage due to electrostatic discharge.

Advantages and Disadvantages

Advantages: - Wide operating voltage range allows for compatibility with various systems. - High-speed operation enables fast data transfer. - Non-inverting outputs ensure accurate signal transmission. - ESD protection enhances reliability and durability.

Disadvantages: - Limited number of channels (8) may not be sufficient for complex applications requiring more connections. - The SOIC-20 package may not be suitable for space-constrained designs.

Working Principles

The MC74LVX4245DT utilizes low-voltage CMOS technology to achieve bidirectional voltage translation. It consists of eight channels, each capable of translating signals between two voltage domains. The direction of translation is controlled by the OE1 and OE2 pins. When OE1 is high, the A-side inputs are enabled, and the B-side outputs reflect the logic levels of the A-side inputs. Conversely, when OE2 is high, the B-side inputs are enabled, and the A-side outputs reflect the logic levels of the B-side inputs. The non-inverting nature of the outputs ensures that the logic levels are preserved during translation.

Detailed Application Field Plans

The MC74LVX4245DT finds applications in various fields, including:

1. Embedded Systems: Used to interface between microcontrollers operating at different voltage levels.
2. Communication Systems: Facilitates voltage translation between different communication protocols and standards.
3. Industrial Automation: Enables communication between devices with varying voltage requirements in industrial control systems.
4. Consumer Electronics: Allows for level shifting between different components, such as sensors, displays, and memory modules.

Detailed and Complete Alternative Models

1. SN74LVX4245: Similar functionality and specifications, available in a TSSOP-20 package.
2. 74LVC245: Bi-directional octal bus transceiver with similar characteristics, available in various packages including SOIC-20 and TSSOP-20.
3. CD4504B: Hex non-inverting level shifter with similar features, available in a DIP-16 package.

These alternative models can be considered based on specific application requirements and availability.

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