STMicroelectronics

M74HC148TTR

M74HC148TTR Description

The M74HC148TTR is a priority encoder integrated circuit (IC) from the 74HC series, manufactured by STMicroelectronics. This IC is designed to encode an 8-bit input into a 3-bit output, prioritizing the highest-order active input. It features a single supply voltage range of 2V to 6V, making it suitable for a variety of power supply configurations. The M74HC148TTR is housed in a 16-pin TSSOP package and is available in tape and reel (TR) format, facilitating surface mount assembly processes.

M74HC148TTR Features

• Priority Encoding: The M74HC148TTR efficiently encodes an 8-bit input into a 3-bit output, prioritizing the highest-order active input. This feature is particularly useful in applications where multiple inputs need to be processed in a hierarchical manner.
• Single Supply Operation: With a supply voltage range of 2V to 6V, the M74HC148TTR offers flexibility in power supply design, accommodating a wide range of voltage levels.
• Surface Mount Compatibility: The 16-pin TSSOP package is ideal for surface mount technology (SMT), enabling compact and reliable integration into modern electronic assemblies.
• High Output Current Capability: The IC supports an output current of 5.2mA for both high and low states, ensuring robust signal handling and compatibility with various downstream components.
• Moisture Sensitivity Level 1: The M74HC148TTR is rated at MSL 1 (unlimited), indicating that it is not sensitive to moisture, which enhances its reliability in various environmental conditions.
• Compliance and Status: The M74HC148TTR is REACH unaffected and RoHS3 compliant, ensuring it meets environmental and regulatory standards. However, it is important to note that this product is currently obsolete, which may impact future availability.

M74HC148TTR Applications

The M74HC148TTR is well-suited for applications requiring efficient data prioritization and encoding. Some specific use cases include:

• Digital Systems: In digital circuits where multiple input signals need to be prioritized and encoded, the M74HC148TTR provides a compact and reliable solution.
• Microcontroller Interfaces: When interfacing with microcontrollers, the priority encoder can help manage multiple interrupt requests by prioritizing them based on their significance.
• Data Processing: In systems where data from multiple sources needs to be encoded and transmitted, the M74HC148TTR can streamline the process by converting 8-bit inputs into a more manageable 3-bit format.
• Priority Interrupt Handling: In embedded systems, the M74HC148TTR can be used to handle multiple interrupt requests, ensuring that the highest priority interrupt is processed first.

Conclusion of M74HC148TTR

The M74HC148TTR from STMicroelectronics is a versatile priority encoder IC with a wide supply voltage range and high output current capability. Its surface mount package and moisture sensitivity level 1 rating make it suitable for a variety of applications in the electronics industry. While the product is currently obsolete, its unique features and performance benefits make it a valuable component for applications requiring efficient data prioritization and encoding.