ON Semiconductor 74LS164 8-Bit Serial-In Parallel-Out Shift Register

The ON Semiconductor 74LS164 is a high-performance, 8-bit serial-in parallel-out shift register designed to offer a compact and efficient solution for expanding the data handling capabilities of digital systems. This integrated circuit is part of the 74LS logic family, known for its low power consumption and high speed, making it ideal for a wide range of applications, including microprocessor expansion, data transmission, and digital signal processing.

The 74LS164 features two serial data inputs (A and B), eight parallel outputs (Q0 to Q7), a direct clear input, and a clock input. The device operates on a typical 5V power supply, which is standard for TTL (Transistor-Transistor Logic) devices. The clock input is used to sequentially shift the data present at the A or B inputs into the register on the rising edge of the clock signal. The clear input can be used to reset the register, setting all outputs to a low state when a low voltage is applied.

With its simple interface and easy-to-use control signals, the 74LS164 is particularly useful for serial-to-parallel data conversion. Data is entered serially and then made available on the parallel outputs after eight clock pulses, allowing for the expansion of input/output ports without increasing the number of data lines. The outputs can drive up to 10 LS-TTL loads, providing sufficient current for most applications.

ON Semiconductor's 74LS164 is housed in a compact DIP (Dual Inline Package) or SOP (Small Outline Package), which makes it suitable for both prototyping and mass production. Its robust design ensures reliable operation over a wide range of environmental conditions, with an operating temperature range from 0°C to +70°C.

Whether you are designing consumer electronics, communication systems, or complex automation processes, the 74LS164 from ON Semiconductor provides a reliable and efficient way to manage data flow within your digital circuitry. Its ease of use, combined with the reputation of ON Semiconductor for quality and durability, makes it an excellent choice for your digital design needs.