Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package / Case | Tube |
| Series | 74LS |
| Part Status | Active |
| Logic Type | Buffer, Inverting |
| Number of Elements | 2 |
| Number of Bits per Element | 4 |
| Output Type | 3-State |
| Current - Output High Low | 15mA, 24mA |
| Voltage - Supply | 4.75V ~ 5.25V |
| Operating Temperature | 0°C ~ 70°C (TA) |
| Mounting Type | Through Hole |
Tổng quan
Description
The SN74LS240N is an octal buffer and line driver with 3-state outputs, designed for use in memory address driving, clock driver circuits, and bus-oriented applications. Manufactured by Texas Instruments, it is part of the 74LS series of TTL logic integrated circuits. The SN74LS240N features two enable inputs for easy cascading and has eight inverting buffers to ensure signal integrity over long distances or large loads.
This IC provides a high-performance solution with low power consumption and fast switching times. It operates at a power supply voltage of 4.75V to 5.25V and is typically housed in a 20-pin DIP (Dual In-line Package). The three-state outputs allow for connection to a common bus line, reducing the risk of contention conflicts when multiple devices are connected. These features make it suitable for applications requiring high-speed data transmission or isolation between components.
Overall, the SN74LS240N is an essential component in digital circuits, offering reliable performance for various interfacing needs in both industrial and commercial environments.
This IC provides a high-performance solution with low power consumption and fast switching times. It operates at a power supply voltage of 4.75V to 5.25V and is typically housed in a 20-pin DIP (Dual In-line Package). The three-state outputs allow for connection to a common bus line, reducing the risk of contention conflicts when multiple devices are connected. These features make it suitable for applications requiring high-speed data transmission or isolation between components.
Overall, the SN74LS240N is an essential component in digital circuits, offering reliable performance for various interfacing needs in both industrial and commercial environments.
Equivalent
The SN74LS240N is an octal buffer/line driver with 3-state outputs. Equivalent products include:
1. 74HC240 - High-speed CMOS version.
2. 74HCT240 - High-speed CMOS with TTL compatibility.
3. 74F240 - Faster version with improved switching performance.
4. 74ALS240 - Advanced low-power Schottky version.
These equivalents differ in speed, power consumption, and technology but perform similar functions. Always verify pin compatibility and electrical characteristics when substituting components.
1. 74HC240 - High-speed CMOS version.
2. 74HCT240 - High-speed CMOS with TTL compatibility.
3. 74F240 - Faster version with improved switching performance.
4. 74ALS240 - Advanced low-power Schottky version.
These equivalents differ in speed, power consumption, and technology but perform similar functions. Always verify pin compatibility and electrical characteristics when substituting components.
Features
The SN74LS240N is an octal buffer/line driver with 3-state outputs, commonly used in digital circuits for driving bus lines or buffering memory address registers. Key features include:
1. High-Speed Operation: It supports high-speed data transfer with typical propagation delay times.
2. 3-State Outputs: Allows multiple circuits to share the same output line or bus by enabling or disabling the outputs.
3. Inverted Outputs: The outputs are inverted, meaning the output is the logical NOT of the input.
4. High Noise Immunity: Designed for high noise immunity, ensuring reliable operation in noisy environments.
5. TTL Compatible: Inputs and outputs are compatible with standard TTL voltage levels.
6. Low Power Consumption: Employs low power Schottky technology to reduce power consumption.
7. Wide Operating Voltage: Operates within a standard voltage range, typically around 5V.
8. Input Clamping Diodes: Includes input clamping diodes to protect inputs from voltage spikes.
These features make the SN74LS240N suitable for a variety of buffering and driving applications in digital systems.
1. High-Speed Operation: It supports high-speed data transfer with typical propagation delay times.
2. 3-State Outputs: Allows multiple circuits to share the same output line or bus by enabling or disabling the outputs.
3. Inverted Outputs: The outputs are inverted, meaning the output is the logical NOT of the input.
4. High Noise Immunity: Designed for high noise immunity, ensuring reliable operation in noisy environments.
5. TTL Compatible: Inputs and outputs are compatible with standard TTL voltage levels.
6. Low Power Consumption: Employs low power Schottky technology to reduce power consumption.
7. Wide Operating Voltage: Operates within a standard voltage range, typically around 5V.
8. Input Clamping Diodes: Includes input clamping diodes to protect inputs from voltage spikes.
These features make the SN74LS240N suitable for a variety of buffering and driving applications in digital systems.
Manufacturer
The SN74LS240N is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and manufactures a wide range of analog and embedded processing chips. TI is known for its innovation in developing electronics that play a vital role in the advancement of technology in sectors such as industrial, automotive, personal electronics, communications equipment, and enterprise systems. With a focus on developing high-performance and energy-efficient products, Texas Instruments is a key player in the semiconductor industry, serving a diverse set of customers worldwide.
Application
The SN74LS240N is an octal buffer/line driver with 3-state outputs, commonly used in digital circuits. It finds application in:
1. Bus Driving: Facilitates data transfer between different parts of a system by driving data buses.
2. Signal Isolation: Offers isolation between different components, minimizing signal reflection and noise.
3. Data Synchronization: Helps in timing management by buffering data paths to align signals.
4. Memory Addressing: Used in memory systems for address decoding and driving signals to memory locations.
5. Peripheral Interfacing: Interfaces microcontrollers or processors with peripheral devices by matching signal levels and providing drive capability.
Its ability to control data flow and maintain signal integrity makes it ideal for embedded systems, computer architecture, and communication equipment.
1. Bus Driving: Facilitates data transfer between different parts of a system by driving data buses.
2. Signal Isolation: Offers isolation between different components, minimizing signal reflection and noise.
3. Data Synchronization: Helps in timing management by buffering data paths to align signals.
4. Memory Addressing: Used in memory systems for address decoding and driving signals to memory locations.
5. Peripheral Interfacing: Interfaces microcontrollers or processors with peripheral devices by matching signal levels and providing drive capability.
Its ability to control data flow and maintain signal integrity makes it ideal for embedded systems, computer architecture, and communication equipment.
Package
The SN74LS240N is a part of the 74LS series of TTL logic integrated circuits and comes in a Dual In-line Package (DIP) with 20 pins.
