Specification Brand : DIYMakerLab BulletPoint : 1Pcs CD74HC4067 16-Channel 16CH Analog Digital MUX Breakout Board CD74HC4067 Precise Module For Arduino 2V-6V Microcontroller BulletPoint1 : Wide Range of Digital and Analog Signal Levels Digital: 3 V to 20 V Analog: ≤ 20 VP-P, Break-Before-Make Switching Eliminates Channel Overlap BulletPoint2 : Low ON Resistance, 125 Ω (Typical) Over 15 VP-P Signal Input Range for VDD – VEE = 18 V BulletPoint3 : High OFF Resistance, Channel Leakage of ±100 pA (Typical) at VDD – VEE = 18 V, Maximum Input Current of 1 µA at 18 V Over Full Package Temperature Range, 100 nA at 18 V and 25°C BulletPoint4 : Logic-Level Conversion for Digital Addressing Signals of 3 V to 20 V (VDD – VSS = 3 V to 20 V) to Switch Analog Signals to 20 VP-P (VDD – VEE = 20 V) Matched Switch Characteristics, rON = 5 Ω (Typical) for VDD – VEE = 15 V Very Low Quiescent Power Dissipation Under All Digital-Control Input and Supply Conditions, 0.2 µW (Typical) at VDD – VSS = VDD – VEE = 10 V BulletPoint5 : Binary Address Decoding on Chip, 5 V, 10 V, and 15 V Parametric Ratings, 100% Tested for Quiescent Current at 20 V ExternallyAssignedProductIdentifier : 4852343705656 ExternallyAssignedProductIdentifier1 : 0034731410173 ExternallyAssignedProductIdentifier2 : 034731410173 IncludedComponents : No ItemName : 1Pcs CD74HC4067 16-Channel 16CH Analog Digital MUX Breakout Board CD74HC4067 Precise Module for Arduino 2V-6V Microcontroller ItemPackageDimensions_Height : 3 centimeters ItemPackageDimensions_Length : 14 centimeters ItemPackageDimensions_Width : 10 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : digital-multiplexers Manufacturer : DIYMakerLab Material : PDIP ModelNumber : CD4052BE NumberOfItems : 20 PartNumber : Ycx-mixLJ1402 ProductDescription : CD74HC4067 16-Channel Analog Digital Multiplexer Breakout Board Module For Arduino
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!
Since the mux/demux also works with digital signals, you can use it to pipe TTL-level serial data to or from multiple devices. For example, you could use it to connect the TX pins of 16 devices to one RX pin on your microcontroller. You can then select any one of those 16 devices to listen to. If you want two-way communications, you can add a second board to route your microcontroller's TX line to 16 device's RX lines. By using multiple boards, you can create similar arrangements for I2C, SPI, etc.
The internal switches are bidirectional, support voltages between ground and VCC, have low “on” resistance and low “off” leakage, and to prevent crosstalk, perform “break-before-make” switching. The board also breaks out the chip's “enable” pin, which when driven high, will completely disconnect the common pin (all switches “off”).