Integrated Circuits (ICs, Chips)

 2
Available
Electronics

74HC595 Shift-Register SOIC - 16( SMD CMS )

Texas Instruments
ELC74HC595CMS
€0.67
The very popular 595 shift register chip of the 74 series is used a lot by hobbyis because of its wide availability, good speed and simplicity. Just plug it on an arduino like shown in the tutorials and youi have 8 more outputs, put two and you have 16 more outputs ! (up to a lot of them actually, with only three pins !)
 2
Available
Electronics

CD4077BE quad exclusive NOR gate (DIP)

Texas Instruments
ELCD4077BE
€0.83
CD4077BE is a quad CMOS Exclusive-NOR Gate for use with logical comparators, adders/subtractors, parity generators and checkers. The CD4077B provide the system designer with a means for direct implementation of the Exclusive-OR and Exclusive-NOR functions, respectively.
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