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SN74LS645-1NS
+StücklisteIC BUS TRANSCEIVER 8BIT 20SO
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HerstellerTexas Instruments
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Herstellerteil #SN74LS645-1NS
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Auf Lager5741
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Übersicht
Description
The SN74LS645-1NS is an octal bus transceiver from Texas Instruments, designed for asynchronous two-way communication between data buses. It features 3-state outputs that can be enabled or disabled depending on the direction control and output enable inputs. This allows for bidirectional data flow, making it suitable for situations where data needs to be transferred between two buses in both directions. The device operates with TTL logic levels and is compatible with LS-TTL families, ensuring reliable performance in various digital applications.
Key features include a low power consumption due to the Schottky-clamped TTL technology and a wide range of operating conditions, making it versatile for different environments. It's packaged in a narrow SOIC (Small Outline Integrated Circuit), providing a compact form factor for space-constrained applications. The SN74LS645-1NS is commonly used in microprocessor systems, data communication, and peripheral interfacing where efficient data transfer and bus control are critical.
Key features include a low power consumption due to the Schottky-clamped TTL technology and a wide range of operating conditions, making it versatile for different environments. It's packaged in a narrow SOIC (Small Outline Integrated Circuit), providing a compact form factor for space-constrained applications. The SN74LS645-1NS is commonly used in microprocessor systems, data communication, and peripheral interfacing where efficient data transfer and bus control are critical.
Equivalent
The SN74LS645-1NS is a bus transceiver with 3-state outputs. Equivalent products include:
1. 74LS645 by various manufacturers like Texas Instruments and Fairchild
2. SN74ALS645 - similar logic family with slightly different electrical characteristics
3. 74HC645 - CMOS variant with similar functionality
When considering equivalents, ensure pin compatibility and check electrical specifications like voltage and current ratings. Always refer to component datasheets for precise details to ensure compatibility in your application.
1. 74LS645 by various manufacturers like Texas Instruments and Fairchild
2. SN74ALS645 - similar logic family with slightly different electrical characteristics
3. 74HC645 - CMOS variant with similar functionality
When considering equivalents, ensure pin compatibility and check electrical specifications like voltage and current ratings. Always refer to component datasheets for precise details to ensure compatibility in your application.
Features
The SN74LS645-1NS is a member of the 74LS family of logic devices, specifically designed as an octal bus transceiver with 3-state outputs. Key features include:
1. Bidirectional Data Flow: It allows data transmission in both directions between buses, making it suitable for interfacing with microprocessors or other digital systems.
2. 3-State Outputs: The outputs can be in one of three states: high, low, or high-impedance, offering flexibility in bus communication by preventing bus contention.
3. TTL Compatibility: The device is compatible with TTL (Transistor-Transistor Logic) levels, ensuring seamless integration with other TTL devices.
4. Low Power Consumption: As part of the LS (Low-power Schottky) series, it is designed to consume less power, making it efficient for use in various electronic applications.
5. Standard Pin Configuration: It follows a conventional pin layout for easy implementation and replacement in existing designs.
These features make the SN74LS645-1NS suitable for use in a variety of digital circuits requiring efficient data handling and minimal power consumption.
1. Bidirectional Data Flow: It allows data transmission in both directions between buses, making it suitable for interfacing with microprocessors or other digital systems.
2. 3-State Outputs: The outputs can be in one of three states: high, low, or high-impedance, offering flexibility in bus communication by preventing bus contention.
3. TTL Compatibility: The device is compatible with TTL (Transistor-Transistor Logic) levels, ensuring seamless integration with other TTL devices.
4. Low Power Consumption: As part of the LS (Low-power Schottky) series, it is designed to consume less power, making it efficient for use in various electronic applications.
5. Standard Pin Configuration: It follows a conventional pin layout for easy implementation and replacement in existing designs.
These features make the SN74LS645-1NS suitable for use in a variety of digital circuits requiring efficient data handling and minimal power consumption.
Pinout
The SN74LS645-1NS is an octal bus transceiver part of the 74LS series of TTL logic integrated circuits. It is designed to provide bidirectional data communication on buses, allowing data flow in both directions between the A and B bus lines.
The IC features 20 pins in a small-outline (SO) package. Here's a brief description of its key functions:
- Pins 1 to 8: A1 through A8 - Data inputs/outputs for the A bus.
- Pins 9, 10, 19, 20: Ground and VCC - Power supply pins (typically GND on pin 10 and VCC on pin 20).
- Pins 11 to 18: B1 through B8 - Data inputs/outputs for the B bus.
- Pin 19: Enable (G) - This pin controls the direction of data flow and whether the transceiver is active or in a high-impedance state.
The device allows for data to be transceived between two buses in either direction, making it versatile for various applications requiring bus interfacing in digital circuits.
The IC features 20 pins in a small-outline (SO) package. Here's a brief description of its key functions:
- Pins 1 to 8: A1 through A8 - Data inputs/outputs for the A bus.
- Pins 9, 10, 19, 20: Ground and VCC - Power supply pins (typically GND on pin 10 and VCC on pin 20).
- Pins 11 to 18: B1 through B8 - Data inputs/outputs for the B bus.
- Pin 19: Enable (G) - This pin controls the direction of data flow and whether the transceiver is active or in a high-impedance state.
The device allows for data to be transceived between two buses in either direction, making it versatile for various applications requiring bus interfacing in digital circuits.
Manufacturer
The SN74LS645-1NS is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and manufactures a wide range of integrated circuits (ICs) and other electronics components. Known for its innovation and industry leadership, TI serves various sectors, including industrial, automotive, personal electronics, and communications. The company is especially recognized for its analog and embedded processing products, and it has a significant role in advancing technology to meet the needs of its diverse customer base.
Application
The SN74LS645-1NS is a high-speed octal bus transceiver often used in digital systems where bidirectional data transfer is required. Common application areas include:
1. Microprocessor and Microcontroller Interfacing: Facilitates data exchange between processors and peripheral devices.
2. Memory Systems: Ensures efficient data transfer between memory units and processing units.
3. Data Acquisition Systems: Used to manage data flow in systems collecting and processing real-time data.
4. Communication Systems: Supports data transmission between different communication modules.
5. Industrial Control Systems: Enables reliable data exchange in automation and control systems.
Its ability to manage bidirectional data flow makes it essential in systems requiring efficient data bus management.
1. Microprocessor and Microcontroller Interfacing: Facilitates data exchange between processors and peripheral devices.
2. Memory Systems: Ensures efficient data transfer between memory units and processing units.
3. Data Acquisition Systems: Used to manage data flow in systems collecting and processing real-time data.
4. Communication Systems: Supports data transmission between different communication modules.
5. Industrial Control Systems: Enables reliable data exchange in automation and control systems.
Its ability to manage bidirectional data flow makes it essential in systems requiring efficient data bus management.
Package
The package type for the SN74LS645-1NS is a SOIC (Small Outline Integrated Circuit). Specifically, it is an 8-pin SOIC package, which is a surface-mount component commonly used for compact and efficient PCB layouts.
