Series:	74LS
Packaging:	Tube
Part Status:	Active
Logic Type:	Shift Register
Output Type:	Open Collector
Number of Elements:	1
Number of Bits per Element:	8
Function:	Serial to Parallel, Serial
Voltage - Supply:	4.75 V ~ 5.25 V
Operating Temperature:	0°C ~ 70°C
Mounting Type:	Through Hole
Package / Case:	16-DIP (0.300", 7.62mm)
Supplier Device Package:	16-PDIP
Base Part Number:	74LS596

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SN74LS596N Application Field and Working Principle

SN74LS596N, or the 74LS596N Octal Latch/Shift Register, is a logic-shift register from Texas Instruments that is part of the 74LS00 series TTL Logic ICs. The 74LS596N is popular for its ability to be used for controlling 8 loads simultaneously with just 3 pins, by helping to do a parallel-in/serial-out shift register operation. The SN74LS596N is an 8-bit parallel-in/serial-out shift register that can simultaneously store and output data. It is an ideal chip used in combination with other logic chips to create complex memory/data storage/data retrieval devices.

Application Fields

The SN74LS596N shift register is used in digital logic circuits and devices including microprocessors, televisions, VCRs, DVD players, arcade games, and numerous other logic-intensive electronics projects. It is commonly used in data shifting and memory applications, in which its Bytewide and serial-in/parallel-out capabilities help to significantly reduce the amount of circuit board space required for data manipulation. The chip can also be connected to a long matrix of LEDs, so that each latch corresponds to one row in the matrix, and the shifting motion causes a whole row to be lit in sequence. As a result, this makes it ideal for using in low-power audio/visual display projects.

Working Principle

The SN74LS596N 8-bit serial-in/parallel-out shift register functions by latching and storing 8-bit data words, plus 8 output enable bits. The data is latched and shifted right on a logical low-level clock pulse and can be shifted more than once by supplying additional pulses, where the serial data output (Q7) will be shifted into the serial data input (D7). This serial-in/serial-out to parallel-out arrangement is also valid when shifting left and the serial data output (Q7) will be shifted into the serial data input (D0).The SN74LS596N chip is a five-stage shift register, meaning that\'s it\'s able to store up to five bits of data and output five bits of data at once. To use it, the first five bits of data (i.e. D0-D4) must be provided to the serial data-in (SDI) input along with the clock input (SCLK). The chip then stores the data on the rising edge of the clock and outputs the data to the parallel data-out (PDO) pins.The SN74LS596N can be used as a stand-alone register, as part of a larger shift register, or as part of an 8-bit register bank. It can be operated in either parallel or serial mode, allowing designers to pick and choose the best architecture for their application. The chip also features an enable (EN) pin and an output enable (OE) pin, which are used to control the output of the register and its connection to the external circuit.

Conclusion

The SN74LS596N is a versatile and powerful 8-bit parallel-in/ serial-out shift register with popular applications in data shifting and memory applications. It can be used to control 8 loads simultaneously and is ideal for low-power audio/visual displays. Additionally, the SN74LS596N features an enable (EN) and output enable (OE) pin for controlling the output and connection to an external circuit. All of these features make the SN74LS596N a great choice for logic-intensive electronic projects.

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