Search results for: 'logic gate'

This is a breakout board for the very handy 16-Channel Analog/Digital Multiplexer/Demultiplexer CD74HC4067. This chip is like a rotary switch - it internally routes the common pin (COM in the schematic, SIG on the board) to one of 16 channel pins (CHANxx). It works with both digital and analog signals (the voltage can’t be higher than VCC), and the connections function in either direction. To control it, connect 4 digital outputs to the chip’s address select pins (S0-S3), and send it the binary address of the channel you want (see the datasheet for details). This allows you to connect up to 16 sensors to your system using only 5 pins!

4017 Decade Counter/Divider CMOS IC (Complementary Metal-Oxide-Semiconductor) logic chips are popular due to their lower power consumption, wider range of power supply voltages (3-15V) than those offered by TTL (Transistor-Transistor Logic) and a reduced need for extraneous circuitry, simplifying the design process and reducing circuit board size.

DIP-14 Package.

Sometimes you feel low, and sometimes you feel high - cause your logic levels are opposite what they should be! But this easy-to-use inverter chip will flip that...

4093 14 Quad 2 input NAND schmitt trigger

CMOS (Complementary Metal-Oxide-Semiconductor) logic chips are popular due to their lower power consumption, wider range of power supply voltages (3-15V) than those offered by TTL (Transistor-Transistor Logic) and a reduced need for extraneous circuitry, simplifying the design process and reducing circuit board size.

DIP014 Package.

4081 14 Quad 2 input AND gate

The XOR module is a logic gate with two inputs. Think of it as “exclusive or,” meaning that it sends an on signal when it’s receiving an on signal exclusively from one input or the other, but not both.

The NAND module is a logic gate with two inputs. Think of it as “not and.” The NAND module will always send an on signal unless both input one and input two are receiving an on signal. It’s the exact opposite of the AND module.

The OR Bit is a logic gate with two inputs. Just like its name, if input one OR input two is receiving an ON signal, then it sends an ON signal from its output.

The inverter is a very contrary logic Bit. It sends out the opposite of whatever it receives: send it an ON signal, and the inverter changes it to an OFF signal, or vice versa. Try putting it between two lights after a button: clicking will make the LEDs blink back and forth, like the lights on top of a police car!

The AND Bit is a logic gate with two inputs. Just like its name implies, it sends an ON signal from its output only when input one AND input two are both receiving an ON signal.

The NOR module is a logic gate with two inputs. As its name suggests, it sends an on signal only when neither input is receiving an on signal. In other words, it’s the exact opposite of the OR module. The NOR module is good for projects in which you want the output to be on unless one or both of its inputs are triggered.