SN74LS165MR1 Parallel-Load 8-Bit Shift Register

The SN74LS165MR1 is a high-performance, parallel-load 8-bit shift register designed and manufactured by ON Semiconductor, a leader in energy-efficient innovations. This integrated circuit is part of the 74LS series, known for its low-power Schottky technology, which offers a balance between speed and power consumption, making it suitable for a wide range of applications in digital systems.

With its parallel-load capability, the SN74LS165MR1 allows for the simultaneous loading of data bits directly into the register in parallel format. The data is then serially shifted out of the register under the control of a clock input, making it an ideal choice for interfacing with microprocessors or microcontrollers where parallel-to-serial data conversion is required.

The device features a clear function, which resets the internal register to the low state when applied, ensuring that the shift register starts from a known state. Additionally, the SN74LS165MR1 is equipped with two serial outputs, one for standard operation and another that provides the complementary output, allowing for increased flexibility in interfacing with subsequent logic circuits.

The SN74LS165MR1 operates over a broad voltage range and has a clock input that is compatible with standard TTL logic levels. This makes the device easily integrable with existing digital systems without the need for additional level-shifting hardware. The shift register is available in a compact surface-mount package, which is ideal for space-constrained applications.

Key features of the SN74LS165MR1 include:

• 8-bit serial or parallel input/output
• Shift register with direct clear
• Wide operating voltage range
• Low power consumption
• Complementary outputs
• High-speed performance
• Compatible with TTL logic levels
• Surface-mount packaging for space-saving installation

Whether used in data acquisition systems, digital signal processing, or general-purpose digital logic environments, the SN74LS165MR1 from ON Semiconductor is a versatile and reliable choice for designers looking to implement efficient parallel-to-serial data conversion in their projects.