74HC595 Shift Register 8-Bit (Up-to 8 Outputs) - 75595

At sometime or another you may run out of pins on your Arduino board and need to extend it with shift registers.
74HC595 is very useful in expanding how many pins a microcontroller can write to. Use 3 to write to 8

The 74HC595 is a very handy IC used in many microcontroller projects. You clock in 8 bits of data (like, on/off settings for 8 LEDs) via two lines, and when you toggle a third line, it pops these settings out on 8 outputs on the IC. So you trade 3 valuable lines on your microcontroller for 8 outputs - a pretty good deal, eh?

This is called "Shifting data out" of the microcontroller by "synchronous serial communication". This is the serial part of the deal, where each bit is "shifted in" one at a time, then BOOM, they all appear at once (in parallel) on the chips output.

These chips are DIP package so you can easily plug them into any breadboard or perfboard with 0.1" spacing. The digital outputs are good for about 20mA, which makes them ideal for LEDs or driving power transistors

Applications

Clock & Timing, Consumer Electronics, Embedded Design & Development

Features

• 8 bit serial-in, parallel-out shift
• Wide operating voltage range of 2V to 6V
• High current 3 state outputs can drive up To 15 LSTTL loads
• Low power consumption: 80µA max.
• ±6-mA output drive at 5V
• Low input current: 1µA max.
• Shift register has direct clear

Specifications

• Logic Family : HC
• Bits Per Element: 8-Bit
• Logical Function : Shift Register
• Shift Register Function: Serial to Parallel 
• Operating Supply Voltage (Typ) : 5V
• Operating Supply Voltage (Min) : 2V
• Operating Supply Voltage (Max) : 6V
• Output Type : 3-State
• Propagation Delay Time : 265ns
• Operating Temp Range : -40C to 125C
• >No. of Pins: 16 Pins
• Package Type : DIP

Package Content

1 x 74HC595N

Pin-outs

	PINS 1-7, 15	Q0 " Q7	Output Pins
	PIN 8	GND	Ground, Vss
	PIN 9	Q7"	Serial Out
	PIN 10	MR	Master Reclear, active low
	PIN 11	SH_CP	Shift register clock pin
	PIN 12	ST_CP	Storage register clock pin (latch pin)
	PIN 13	OE	Output enable, active low
	PIN 14	DS	Serial data input
	PIN 16	Vcc	Positive supply voltage