Productos
Analog/Digital MUX Breakout
Multiplexor Analógico de 16 Canales
COD: SFBOB09056
Peso: 0.010 Kg
Disponibilidad: Sin Stock
ARS 8565.00
El producto no está disponible para la venta en este momento
Características
Description: 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").
Features:
- 2V to 6V operation
- "On" resistance: 70 Ohms @ 4.5V
- 6ns break-before-make @ 4.5V
- Wide operating temperature range: -55C to 125C
Documents:
- Schematic
- Eagle Files
- Datasheet
- bildr blog - CD74HC4067
Galería de Imágenes
Schematic (16 Kb)
Eagle Files (23 Kb)Comentarios
Escribir ComentarioJuan Pablo (24/08/2013 - 08:04)
Hola Nicolás, el breakout viene sin los pines. Por el momento no vendemos los pines, pero se pueden comprar en cualquier casa de electrónica ya que son estándar.
Nicolás (20/08/2013 - 23:23)
Hola, quería saber si este breakout viene con los pines (break away headers) para soldar o ya soldados por ustedes o si bien los venden por separado ya que necesito usarla en un protoboard. Gracias!
