DollaTek CMOS 16 Channel 16 CH Digital Analog Multiplexer Breakout Module For Arduino - 5pcs

About this item

• •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).
• •Specifications
• •1. 2V to 6V operation
• •2. ""On"" resistance: 70 Ohms @ 4.5V
• •3. 6ns break-before-make @ 4.5V
• •4. Wide operating temperature range: -55℃ to 125℃
• •Package Included:
• •5x CD74HC4067 CMOS 16 Channel 16 CH Digital Analog Multiplexer Breakout Module For Arduino

Specifications