ON Semiconductor MC74HC165ADTR2 8-Bit Parallel-Load Shift Registers

The ON Semiconductor MC74HC165ADTR2 is a high-performance CMOS 8-bit parallel-load shift register designed to offer a compact and efficient solution for expanding the input capabilities of microprocessors and microcontrollers. With its ability to convert parallel data to serial format, this device is perfect for applications that require data acquisition, control systems, and communication between various digital systems.

Constructed with silicon gate CMOS technology, the MC74HC165ADTR2 boasts a significant advantage in terms of speed and power consumption over its TTL counterparts. This shift register operates at a voltage range from 2V to 6V, making it ideal for low-power applications and compatible with a wide range of other logic families.

Featuring a direct overriding clear (CLR) input, a clock (CP) input, and a clock inhibit (CLK INH) input, the MC74HC165ADTR2 provides users with multiple control features for enhanced flexibility in operation. The parallel inputs can be placed into eight different states, which are then serially shifted out at the QH' output in synchronous operation with the rising edge of the clock pulse when CLK INH is held low.

The serial output feature of the MC74HC165ADTR2 allows for cascading of multiple devices without the need for additional gating. This daisy-chaining capability is particularly useful in applications with a high number of input signals that need to be read by a single microprocessor input pin. Furthermore, the shift register is equipped with two complementary outputs (QH and QH') to provide both in-phase and out-of-phase serial outputs.

ON Semiconductor's MC74HC165ADTR2 is available in a TSSOP package, offering a space-saving design for high-density applications. The device's robust construction ensures reliable performance in a broad range of industrial and commercial environments. Whether it's for data collection, system control, or communication interfacing, this shift register is an excellent choice for designers looking for a dependable and versatile component.

Overall, the MC74HC165ADTR2 from ON Semiconductor is a testament to the company's commitment to providing high-quality, innovative semiconductor solutions that meet the evolving needs of the electronics industry.