Encyclopedia Entry: 74ALVCHR16245GRE4

Product Information Overview

Category: Integrated Circuit (IC)

Use: The 74ALVCHR16245GRE4 is a high-performance, low-voltage, 16-bit bus transceiver with 3-state outputs. It is designed for use in various digital systems where data transfer between buses of different voltage levels is required.

Characteristics: This IC operates at a low voltage level, making it suitable for battery-powered devices and other low-power applications. It features 16 bidirectional data lines with 3-state outputs, allowing for efficient data transmission. The device also has built-in protection against electrostatic discharge (ESD), ensuring reliability in demanding environments.

Package: The 74ALVCHR16245GRE4 is available in a 48-pin TSSOP (Thin Shrink Small Outline Package) package. This compact package offers excellent thermal performance and ease of integration into circuit boards.

Essence: The essence of the 74ALVCHR16245GRE4 lies in its ability to facilitate bidirectional data transfer between buses operating at different voltage levels, while providing protection against ESD and maintaining low power consumption.

Packaging/Quantity: The IC is typically sold in reels or tubes containing multiple units, with each reel or tube containing a specific quantity of the 74ALVCHR16245GRE4. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Supply Voltage Range: 1.65V to 3.6V
• High-Level Input Voltage: 2.0V to VCC + 0.5V
• Low-Level Input Voltage: -0.5V to 0.8V
• Output Voltage Range: 0V to VCC
• Maximum Operating Frequency: 200MHz
• Propagation Delay Time: 2.5ns (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The 74ALVCHR16245GRE4 has a total of 48 pins, which are assigned specific functions. The pin configuration is as follows:

(Please refer to the datasheet or manufacturer's documentation for the detailed pin diagram.)

Functional Features

1. Bidirectional Data Transfer: The IC enables seamless data transfer between buses operating at different voltage levels.
2. 3-State Outputs: The 74ALVCHR16245GRE4 supports 3-state outputs, allowing multiple devices to share a common bus without interference.
3. ESD Protection: Built-in protection guards against electrostatic discharge, enhancing the reliability of the device.
4. Low Power Consumption: The IC operates at a low voltage level, making it suitable for power-sensitive applications.

Advantages and Disadvantages

Advantages: - Enables data transfer between buses with different voltage levels - Supports bidirectional communication - Provides ESD protection - Low power consumption

Disadvantages: - Limited maximum operating frequency compared to some other transceiver ICs - Requires careful consideration of voltage compatibility when integrating into existing systems

Working Principles

The 74ALVCHR16245GRE4 utilizes a combination of internal circuitry and logic gates to facilitate bidirectional data transfer between buses operating at different voltage levels. It employs level-shifting techniques to ensure proper signal translation while maintaining data integrity. The IC also incorporates ESD protection circuitry to safeguard against electrostatic discharge events.

Detailed Application Field Plans

The 74ALVCHR16245GRE4 finds applications in various digital systems where data transfer between buses with different voltage levels is required. Some potential application fields include:

1. Mobile Devices: Facilitating communication between low-voltage components and higher-voltage peripherals.
2. Industrial Automation: Enabling data exchange between different voltage-level control systems.
3. Automotive Electronics: Supporting communication between various vehicle subsystems operating at different voltage levels.
4. Consumer Electronics: Allowing for seamless data transfer between different voltage domains within multimedia devices.

Detailed and Complete Alternative Models

1. SN74LVC16245A: A similar 16-bit bus transceiver with 3-state outputs, compatible with a wider supply voltage range.
2. MC74LVX245: Another 16-bit bidirectional transceiver IC suitable for low-voltage applications.
3. 74HCT245: A popular octal bus transceiver IC with 3-state outputs, compatible with higher voltage levels.

(Note: The list above provides only a few alternative models. Please refer to the manufacturer's documentation or consult with an electronics specialist for a comprehensive list of alternatives.)

In conclusion, the 74ALVCHR16245GRE4 is a versatile integrated circuit designed for bidirectional data transfer between buses operating at different voltage levels. Its low power consumption, ESD protection, and compact package make it suitable for various digital systems. However, its maximum operating frequency is