SN74LS164DRE4 - 8-Bit Parallel-Out Serial Shift Registers

The SN74LS164DRE4 from Texas Instruments is a high-performance, 8-bit serial-in, parallel-out shift register designed to provide efficient data manipulation and interfacing in digital circuitry. This integrated circuit is part of the 74LS family, known for its low-power Schottky technology, which offers a good balance between speed and power consumption.

This device features two serial data inputs (A and B) that allow for either single or dual-input modes of operation, making it highly flexible for various applications. The SN74LS164DRE4 operates with a typical shift frequency of 25MHz, enabling fast data processing and transfer, which is essential for high-speed data acquisition systems, digital signal processing, and other time-critical applications.

The shift register comes in a compact 14-pin SOIC package, which is suitable for surface-mount technology (SMT) and occupies minimal space on a printed circuit board (PCB). This makes it an ideal choice for space-constrained applications such as portable electronics, embedded systems, and compact industrial controls.

With a wide operating voltage range of 4.75V to 5.25V, the SN74LS164DRE4 provides excellent compatibility with standard 5V digital systems. Its low power consumption and high noise immunity are characteristics that make it well-suited for use in noisy environments and battery-powered devices.

Furthermore, the device includes a clear function, which resets the internal registers to a low state, ensuring that the system can be quickly initialized or reset as needed. This feature is particularly useful for maintaining data integrity and for use in systems that require a predictable startup state.

In summary, the SN74LS164DRE4 from Texas Instruments is a versatile and reliable component for digital systems requiring serial-to-parallel data conversion. Its high-speed operation, low power requirements, and robust functionality make it an excellent choice for designers looking to optimize their digital applications.