Encyclopedia Entry: 74ABT2245D,112

Product Information Overview

Category: Integrated Circuit (IC)

Use: The 74ABT2245D,112 is a bidirectional octal bus transceiver designed for asynchronous communication between two data buses. It allows bidirectional transfer of data between the A and B buses with separate output-enable (OE) and direction-control (DIR) inputs.

Characteristics: - High-speed operation: The 74ABT2245D,112 operates at high speeds, making it suitable for applications that require fast data transfer. - Bidirectional functionality: It enables data transmission in both directions, allowing seamless communication between two data buses. - Low power consumption: This IC is designed to consume low power, making it energy-efficient. - Wide operating voltage range: The 74ABT2245D,112 can operate within a wide voltage range, providing flexibility in various applications.

Package: The 74ABT2245D,112 is available in a standard 20-pin SSOP (Shrink Small Outline Package) package.

Essence: The essence of the 74ABT2245D,112 lies in its ability to facilitate bidirectional data transfer between two data buses, enabling efficient communication in electronic systems.

Packaging/Quantity: The 74ABT2245D,112 is typically sold in reels containing multiple units. The exact quantity may vary depending on the supplier.

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Maximum Propagation Delay: 6 ns
• Maximum Quiescent Current: 80 μA

Detailed Pin Configuration

The 74ABT2245D,112 has a total of 20 pins. The pin configuration is as follows:

+---\/---+ DIR |1 20| VCC OE |2 19| B7 A0 |3 18| B6 A1 |4 17| B5 A2 |5 16| B4 A3 |6 15| B3 A4 |7 14| B2 A5 |8 13| B1 A6 |9 12| B0 A7 |10 11| GND +--------+

Functional Features

• Bidirectional Data Transfer: The 74ABT2245D,112 allows data to be transmitted bidirectionally between two buses, A and B.
• Separate Control Inputs: The IC features separate inputs for output enable (OE) and direction control (DIR), providing flexibility in controlling the data flow.
• High-Speed Operation: With a maximum propagation delay of 6 ns, the 74ABT2245D,112 ensures fast data transfer, suitable for time-critical applications.
• ESD Protection: This IC incorporates Electrostatic Discharge (ESD) protection, safeguarding it against potential damage during handling or operation.

Advantages and Disadvantages

Advantages: - Fast data transfer speeds - Bidirectional functionality - Low power consumption - Wide operating voltage range - ESD protection

Disadvantages: - Limited number of input/output pins (8 each)

Working Principles

The 74ABT2245D,112 operates based on the principles of digital logic. It uses control signals from the OE and DIR inputs to determine the direction of data flow between the A and B buses. When the DIR input is set to a specific logic level, the IC allows data transmission from the corresponding bus (A or B) to the other bus. The OE input enables or disables the output drivers, controlling the data transfer.

Detailed Application Field Plans

The 74ABT2245D,112 finds applications in various fields where bidirectional data communication between two buses is required. Some potential application areas include: - Microprocessor systems - Data acquisition systems - Industrial automation - Communication equipment - Automotive electronics

Detailed and Complete Alternative Models

• SN74ABT2245: This is a similar octal bus transceiver manufactured by Texas Instruments.
• MC74ABT2245: Another alternative model produced by ON Semiconductor.
• CD74ABT2245: A compatible octal bus transceiver offered by Texas Instruments.

These alternative models provide similar functionality to the 74ABT2245D,112 and can be considered as alternatives based on specific requirements and availability.

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