Encyclopedia Entry: 74AC16245DLR

Product Information Overview

• Category: Integrated Circuit (IC)
• Use: Signal Buffer/Transceiver
• Characteristics: High-speed, low-power, bidirectional data transfer
• Package: Dual-In-Line (DIP)
• Essence: The 74AC16245DLR is a 16-bit bus transceiver with tri-state outputs. It allows bidirectional data flow between two buses and provides isolation when the output enable (OE) input is high.
• Packaging/Quantity: The 74AC16245DLR is typically sold in reels or tubes containing multiple units.

Specifications

• Number of Bits: 16
• Logic Family: Advanced CMOS (AC)
• Operating Voltage: 2V to 6V
• Output Drive Capability: ±24mA
• Propagation Delay: 5ns (max)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The 74AC16245DLR has a total of 48 pins, which are divided into four groups: - Group A: Pins 1-12 (Input/Output Ports A) - Group B: Pins 13-24 (Input/Output Ports B) - Group C: Pins 25-36 (Control Inputs) - Group D: Pins 37-48 (Control Outputs)

For a detailed pin configuration diagram, please refer to the datasheet provided by the manufacturer.

Functional Features

• Bidirectional Data Transfer: The 74AC16245DLR enables data transmission in both directions, allowing seamless communication between two buses.
• Tri-State Outputs: The tri-state outputs provide isolation when the OE input is high, preventing conflicts on the connected buses.
• High-Speed Operation: With a propagation delay of only 5ns, the IC ensures fast data transfer.
• Low Power Consumption: The advanced CMOS technology used in the 74AC16245DLR minimizes power consumption.

Advantages and Disadvantages

Advantages: - Bidirectional data transfer simplifies bus communication. - Tri-state outputs prevent bus conflicts. - High-speed operation enables efficient data transmission. - Low power consumption reduces energy usage.

Disadvantages: - Limited number of bits (16) may not be suitable for larger data buses. - Requires careful consideration of control signals to avoid data corruption.

Working Principles

The 74AC16245DLR operates based on the principles of digital logic. It uses a combination of transistors and gates to enable bidirectional data flow between two buses. The control inputs determine the direction of data transfer, while the OE input controls the tri-state outputs, providing isolation when necessary.

Detailed Application Field Plans

The 74AC16245DLR is commonly used in various applications that require bidirectional data transfer, such as: - Microprocessor systems - Data communication networks - Industrial automation - Automotive electronics

Detailed and Complete Alternative Models

• 74HC16245: Similar to the 74AC16245DLR but operates at a lower voltage range (2V to 5.5V).
• SN74LV245A: Another 16-bit bus transceiver with similar functionality but operates at a lower voltage range (1.65V to 5.5V).
• CD74HCT245: A 16-bit octal bus transceiver with similar features but operates at a higher voltage range (4.5V to 5.5V).

These alternative models offer similar functionality and can be considered depending on specific requirements and compatibility with existing systems.

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