What This Document Is
This is a detailed specification sheet for the DM74LS165, an 8-bit parallel in/serial output shift register. It’s a foundational component frequently used in digital logic and embedded systems design. This document originates from Fairchild Semiconductor and provides comprehensive technical information for engineers and students working with this specific integrated circuit. It delves into the functional characteristics, electrical properties, and physical attributes of the DM74LS165.
Why This Document Matters
This specification is crucial for anyone designing, building, or troubleshooting circuits that utilize the DM74LS165 shift register. It’s particularly valuable for students in embedded systems courses, digital logic design classes, or related electrical engineering disciplines. Professionals needing to integrate this component into larger systems will also find this information essential. Understanding the detailed parameters outlined within allows for correct implementation, optimal performance, and reliable operation of circuits employing this device. It’s a key resource during the prototyping and testing phases of a project.
Common Limitations or Challenges
This document focuses *solely* on the DM74LS165. It does not provide broader tutorials on shift registers in general, or detailed circuit design examples. It assumes a foundational understanding of digital logic principles. While it outlines performance characteristics, it doesn’t include application-specific guidance or code examples for interfacing with microcontrollers or other systems. It also doesn’t cover alternative shift register options or comparative analyses.
What This Document Provides
* Detailed functional descriptions of the shift register’s operation.
* A comprehensive connection diagram illustrating pin assignments.
* Logic diagrams representing the internal circuitry.
* Timing diagrams illustrating signal behavior during various operations.
* Absolute maximum ratings and recommended operating conditions.
* Electrical characteristics outlining voltage and current parameters.
* Switching characteristics defining propagation delays.
* Physical dimension details for the component package.
* A function table detailing input and output relationships.
