74LCX646TTR

Product Overview

Category

The 74LCX646TTR belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used for data bus exchange and translation in digital systems.

Characteristics

• Low voltage operation: The 74LCX646TTR operates at a low voltage, typically between 1.65V and 3.6V.
• High-speed performance: It offers fast data transmission rates, making it suitable for high-speed applications.
• Bidirectional data flow: This IC allows data to be transferred bidirectionally between two buses.
• Wide operating temperature range: The 74LCX646TTR can operate reliably within a wide temperature range, typically from -40°C to 85°C.

Package

The 74LCX646TTR is available in a small-outline transistor (SOT) package.

Essence

The essence of the 74LCX646TTR lies in its ability to facilitate efficient data exchange between different buses in digital systems.

Packaging/Quantity

This IC is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Supply Voltage Range: 1.65V to 3.6V
• Input/Output Voltage Range: 0V to VCC
• Maximum Operating Frequency: 200MHz
• Number of Pins: 24
• Logic Family: LCX

Detailed Pin Configuration

The 74LCX646TTR has a total of 24 pins, each serving a specific function. Here is the detailed pin configuration:

1. OE (Output Enable)
2. A0-A2 (Address Inputs)
3. DIR (Direction Control)
4. GND (Ground)
5. B0-B7 (Data Bus B Inputs/Outputs)
6. VCC (Power Supply)
7. BDIR (Direction Control for Bus B)
8. BCLK (Clock Input for Bus B)
9. B1OE (Output Enable for Bus B)
10. B2OE (Output Enable for Bus B)
11. B3OE (Output Enable for Bus B)
12. B4OE (Output Enable for Bus B)
13. B5OE (Output Enable for Bus B)
14. B6OE (Output Enable for Bus B)
15. B7OE (Output Enable for Bus B)
16. A3-A10 (Address Inputs)
17. ALE (Address Latch Enable)
18. CLK (Clock Input)
19. BDIR (Direction Control for Bus A)
20. A1OE (Output Enable for Bus A)
21. A2OE (Output Enable for Bus A)
22. A3OE (Output Enable for Bus A)
23. A4OE (Output Enable for Bus A)
24. A5OE (Output Enable for Bus A)

Functional Features

The 74LCX646TTR offers the following functional features:

• Bidirectional data transfer: It allows data to be exchanged bidirectionally between two buses.
• Address decoding: The IC decodes the address inputs to determine the source and destination of the data.
• Output enable control: Each bus has individual output enable pins, allowing selective data transfer.
• Direction control: The direction control pin determines the direction of data flow between the buses.

Advantages and Disadvantages

Advantages

• Low voltage operation enables compatibility with modern digital systems.
• High-speed performance allows for efficient data exchange.
• Bidirectional data flow simplifies system design.
• Wide operating temperature range ensures reliability in various environments.

Disadvantages

• Limited number of address inputs may restrict the size of the addressable memory space.
• SOT package may not be suitable for applications requiring higher power dissipation.

Working Principles

The 74LCX646TTR operates based on the principles of digital logic. It uses address decoding and direction control to determine the source and destination of data. The bidirectional data flow is facilitated by the internal circuitry, which allows data to be transferred between two buses in either direction. The output enable pins provide control over the data transfer, allowing selective activation of specific buses.

Detailed Application Field Plans

The 74LCX646TTR finds application in various digital systems where data bus exchange and translation are required. Some specific application field plans include:

1. Microprocessor-based systems: The IC can be used to interface different buses within a microprocessor-based system, enabling efficient data transfer between components.
2. Communication systems: It can facilitate data exchange between different communication interfaces, such as UART, SPI, or I2C, allowing seamless communication between devices.
3. Memory systems: The 74LCX646TTR can be utilized in memory systems to enable data transfer between different memory modules, enhancing overall system performance.

Detailed and Complete Alternative Models