74HC597D/AUJ

Series:	74HC
Packaging:	Tape & Reel (TR)
Part Status:	Active
Logic Type:	Shift Register
Output Type:	--
Number of Elements:	1
Number of Bits per Element:	8
Function:	Parallel or Serial to Serial
Voltage - Supply:	2 V ~ 6 V
Operating Temperature:	-40°C ~ 125°C
Mounting Type:	Surface Mount
Package / Case:	16-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	16-SO
Base Part Number:	74HC597

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Introduction

The 74HC597D/AUJ is a high-performance 8-bit serial-in/serial-out shift register. It is a component featuring several control signals and a wide range of industry-standard bonding options, including die, die with Package Outline Replacement (POR) capability, and through hole package formats.This component can be easily integrated into designs requiring serial data manipulation, such as UART ports. Its compatibility with a variety of industry-standard devices and system architectures make it the component of choice in wide range of applications including telecommunications, data processing, personal computers, military and automotive industries.

Application field

The 74HC597D/AUJ component can be used in a variety of applications in diverse industries including:

• Telecommunication: The component can be used to improve the transmission speed and accuracy of voice, data, and video services in local access and core network applications.
• Data processing: It is ideal for buffering and transfers of data between two different processor architectures.
• Personal computers: The component can be used to facilitate interface communication between the CPU and peripherals.
• Military and aerospace: Its protective features make it suitable for use in military-grade communication systems.
• Automotive: It can be used in techniques such as Automatic Cruise Control and Vehicle Security System.

Working principle

The 74HC597D/AUJ shift register includes serial input (SI) and serial output (SO) pins. It incorporates 8 data I/O pins, a lead frame and a power pin to dissipate heat. When power is supplied to the component, the data loaded at SI port is stored in the register on a first-in-first-out (FIFO) principle. The data is then shifted out from the serial output port, one bit at a time.The component features an asynchronous serial IO. Data stored in the shift register is shifted out with a binary clock signal with a corresponding rising edge. The component also features a hold function. It allows the register to shift data until a Low logic level is applied to the hold pin. The component can be used in various modes such as parallel input parallel output (PIPO), parallel output serial input (POSI), serial output parallel input (SOPI), and serial input serial output (SISO). In PIPO mode, data is transferred between the component and a processor in parallel. Data is moved between component and processor at the maximum speed of the component. In POSI mode, data is loaded in the component in serial and unloaded in parallel. Due to the serial data loading, the component is able to shift data at high speeds when compared to PIPO mode.In the SOPI mode, the component is used to unload data from the component in serial, making it ideal for applications that require serial data. Lastly, in the SISO mode, data is shifted in and out of the component in serial as required for UART ports and for communication between two processors. The component features four control pins, SET, MR, MR/SHIFT and RESET. The RESET pin clears the register and resets it in a known state. It should be held at Low logic level during normal operation. The SET pin is used to initialize the register to a known state while the MR/SHIFT pin is used to change the modes of operation from “set” to “shift”.

Conclusion

The 74HC597D/AUJ component is a high-performance 8-bit serial-in/serial-out shift register. This component can be easily integrated into a variety of designs needing serial data manipulation. It features four control pins for easy initialization and shifting of data. The component also features several industry-standard bonding options and can be used in multiple modes such as PIPO, POSI, SOPI, and SISO. The component can be used in several applications in diverse industries, making it a great choice for designers in need of serial I/O capabilities.

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