MC74HC589ADR2G

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Introduction

The MC74HC589ADR2G is a type of 8-bit Serial-in/Serial-out Shift Register and operates from a single 1.65 to 5.5V power supply. It is also multivibrator compatible, allowing for a wide range of applications. This product is ideal for handling time-critical data and can be used for logic functions, memory storage and data communication. By utilizing the device\'s capabilities, it can help reduce system power consumption, improve product flexibility and performance, and reduce circuit complexity.

Application Field

The MC74HC589ADR2G is generally used in many applications, including data and address transmission, memory storage and memory reading. It is also often used in communication systems and video displays, due to its ability to handle data in a faster and more efficient manner than traditional logic functions.

In various applications, the device is used for data transmission such as in digital pulse transmissions. It is also used in synchronous communication and address decoding. Additionally, it is used as serial-to-parallel converter, or in buffering or storing 8-bits of data. Further, the device performs clock regeneration, and provides a delay line.

Working Principle

The device has eight data input pins, eight outputs, and two control input pins. The eight data inputs accommodate both the asynchronous serial-in (SI) and synchronous serial-in (SSI) formats. Each of the data pins, or bits, can be individually loaded with a logic 0 or a logic 1. When an active-low clock (CLK) is applied low, the data is shifted into a 1-bit register in which the state of the second bit is transferred into the first bit, the third into the second, and so on.

The device also has a CLEAR pin for resetting all its internal registers. This input sets all the output lines in a logic low state, regardless of any other levels that may be applied to the control inputs. The CLEAR pin is inversely affected by a VDD (logic low) or GND (logic high). The CLEAR pin also has an internal pull-up resistor that brings the pin to VDD when not in use.

The data output (DO) is shifted in the same order as the inputs. The MSB (Most Significant Bit) of the data is shifted out after the last bit (Least Significant Bit) is stored in the register. The device also has an active-low clock enable input (CE) to prevent data loading when it is left open.

Conclusion

The MC74HC589ADR2G is a type of 8-bit serial-in/serial-out shift register. It is widely used for data and address transmission, memory storage and memory reading, communication systems and video displays. The device has eight data input pins, eight outputs, and two control input pins. Its CLEAR pin is used for resetting all the internal registers and its DO pin is used for shifting out the data in the same order as the inputs. The device is suitable for a wide range of applications and is an ideal choice for time-critical data.

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