SN74LS641-1N

Product Overview

Category

The SN74LS641-1N belongs to the category of integrated circuits (ICs), specifically a type of digital logic chip.

Use

This IC is commonly used in electronic devices for data bus applications, such as computers, microcontrollers, and other digital systems.

Characteristics

• The SN74LS641-1N is a 8-bit transceiver with tri-state outputs.
• It operates on a supply voltage range of 4.75V to 5.25V.
• This IC has a high-speed performance, making it suitable for applications requiring fast data transfer.
• It features a low power consumption, ensuring efficient operation.

Package

The SN74LS641-1N is available in a standard 20-pin DIP (Dual In-line Package) format.

Essence

The essence of this IC lies in its ability to facilitate bidirectional data transfer between two separate data buses.

Packaging/Quantity

The SN74LS641-1N is typically packaged in tubes or reels, with each package containing a specific quantity of ICs. The exact quantity may vary depending on the manufacturer and supplier.

Specifications

• Supply Voltage Range: 4.75V to 5.25V
• Logic Family: LS-TTL (Low Power Schottky Transistor-Transistor Logic)
• Number of Bits: 8
• Output Type: Tri-state
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay Time: 9 ns (max)
• Input/Output Capacitance: 10 pF (typ)

Detailed Pin Configuration

The SN74LS641-1N has a total of 20 pins, which are assigned specific functions. Here is the detailed pin configuration:

1. A0: Data Bus A Bit 0
2. A1: Data Bus A Bit 1
3. A2: Data Bus A Bit 2
4. A3: Data Bus A Bit 3
5. A4: Data Bus A Bit 4
6. A5: Data Bus A Bit 5
7. A6: Data Bus A Bit 6
8. A7: Data Bus A Bit 7
9. OE*: Output Enable (Active Low)
10. DIR: Direction Control
11. GND: Ground
12. B7: Data Bus B Bit 7
13. B6: Data Bus B Bit 6
14. B5: Data Bus B Bit 5
15. B4: Data Bus B Bit 4
16. B3: Data Bus B Bit 3
17. B2: Data Bus B Bit 2
18. B1: Data Bus B Bit 1
19. B0: Data Bus B Bit 0
20. VCC: Supply Voltage

Functional Features

The SN74LS641-1N offers the following functional features:

• Bidirectional data transfer between two separate data buses (A and B).
• Tri-state outputs allow for high impedance state when not enabled.
• Direction control pin (DIR) determines the direction of data flow.
• Output enable pin (OE*) enables or disables the outputs.

Advantages and Disadvantages

Advantages

• High-speed performance allows for efficient data transfer.
• Low power consumption ensures energy efficiency.
• Tri-state outputs provide flexibility in bus sharing applications.
• Wide operating temperature range makes it suitable for various environments.

Disadvantages

• Limited to 8-bit data bus applications.
• Requires external control signals for proper operation.
• Not suitable for applications requiring higher bit capacity.

Working Principles

The SN74LS641-1N operates based on the principles of digital logic. It uses internal circuitry to control the bidirectional data transfer between two separate data buses. The direction control pin (DIR) determines whether the data flows from bus A to bus B or vice versa. The output enable pin (OE*) enables or disables the outputs, allowing for high impedance state when not enabled.

Detailed Application Field Plans

The SN74LS641-1N finds applications in various fields where bidirectional data transfer is required. Some of the detailed application field plans include:

1. Computer Systems: Used in data buses for efficient communication between different components, such as memory modules and peripherals.
2. Microcontrollers: Enables data exchange between microcontroller units and external devices, facilitating input/output operations.
3. Digital Communication Systems: Utilized in data transmission circuits for reliable and fast data transfer between different network nodes.
4. Industrial Automation: Enables data exchange between control systems and various sensors/actuators, facilitating automation processes.
5. Embedded Systems: Used in embedded devices for efficient data transfer between different subsystems, ensuring smooth operation.

Detailed and Complete Alternative Models

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