74LVC240ADB,118

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Logic Level Converter
• Characteristics: Low Voltage CMOS Octal Buffer/Line Driver with 5V Tolerant Inputs and Outputs
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: This IC is designed to convert logic level signals between different voltage levels, making it suitable for interfacing between devices operating at different voltage levels.
• Packaging/Quantity: Available in tape and reel packaging, with a quantity of 2500 units per reel.

Specifications

• Supply Voltage Range: 1.2V to 3.6V
• High-Level Input Voltage: 0.7 x VCC
• Low-Level Input Voltage: 0.3 x VCC
• High-Level Output Voltage: 0.9 x VCC
• Low-Level Output Voltage: 0.1 x VCC
• Maximum Operating Frequency: 80 MHz
• Number of Pins: 20
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

1. GND (Ground)
2. A1 (Input/Output)
3. Y1 (Output)
4. A2 (Input/Output)
5. Y2 (Output)
6. A3 (Input/Output)
7. Y3 (Output)
8. A4 (Input/Output)
9. Y4 (Output)
10. A5 (Input/Output)
11. Y5 (Output)
12. A6 (Input/Output)
13. Y6 (Output)
14. A7 (Input/Output)
15. Y7 (Output)
16. A8 (Input/Output)
17. Y8 (Output)
18. OE (Output Enable)
19. VCC (Supply Voltage)
20. GND (Ground)

Functional Features

• 8-bit buffer/line driver with 3-state outputs
• Inputs and outputs are 5V tolerant, allowing for direct interfacing with devices operating at higher voltage levels
• Provides bidirectional level shifting between low voltage and higher voltage systems
• Supports mixed-mode signal operation on all ports

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows compatibility with various systems - 5V tolerance on inputs and outputs simplifies interfacing with different voltage level devices - High-speed operation up to 80 MHz enables efficient data transfer - 3-state outputs provide flexibility in controlling signal flow

Disadvantages: - Limited number of input/output pins may restrict the number of devices that can be connected simultaneously - Not suitable for applications requiring higher voltage level shifting beyond 5V

Working Principles

The 74LVC240ADB,118 is based on CMOS technology and utilizes a combination of MOSFETs to perform logic level conversion. The inputs and outputs are designed to tolerate both low voltage (1.2V to 3.6V) and higher voltage (up to 5V) signals. When the output enable (OE) pin is active, the IC functions as a buffer, passing the input signals to the corresponding output pins. When the OE pin is inactive, the outputs are in a high-impedance state, effectively disconnecting them from the circuit.

Detailed Application Field Plans

• Interfacing between microcontrollers operating at different voltage levels
• Level shifting in communication protocols such as I2C, SPI, or UART
• Signal translation in mixed-voltage systems
• Logic level conversion in battery-powered devices with low voltage requirements

Detailed and Complete Alternative Models

• SN74LVC240A: Similar octal buffer/line driver with 3-state outputs, available in different package options
• 74HC240: Octal buffer/line driver with non-inverting outputs, suitable for higher voltage level shifting
• CD4050: Hex non-inverting buffer/converter, capable of level shifting between different voltage levels

(Note: The alternative models mentioned above are just a few examples and not an exhaustive list.)

This entry provides comprehensive information about the 74LVC240ADB,118 integrated circuit. It covers its basic overview, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.