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Description: Texas Instruments CD74HC4067 16-Channel multiplexer. What can you do with it? How about taking an analog to digital reading from 16 devices with only 1 ADC channel and 4 control pins. That’s right, 16 for the price of 5! 24-Pin SSOP package. Works great with our 28-Pin SSOP to DIP adapters.


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Customer Comments

  • Love this part but have recently had a slight project setback. I was hoping to use this for charlieplexing, as 2 of them would yield control over 240 leds without alot of fancy grid work, but sadly (and not in the datasheet!) each of the 16 lines has a 680ohm pullup resistor on it. Ah well, back to the drawing board :D

  • Oooo, that looks absolutely delicious.
    But… The datasheet seems inconsistent. It shows some other forms of this chip, but doesn’t have this one. It has a similar 28-pin package, but this is 24-pin. Are they similar enough to assume that the pinouts are identical? ( minus four pins? )

  • Hi,

    I need to read/write 16 I2C devices which have the same I2C address (0x68) using only one I2C port in my uC. Is possible to this with this product?

    Thank you,

  • Damn… bought some of these and didn’t notice (until they arrived) that they were not the 28-pin devices in the datasheet but actually a 24-pin package that isn’t mentioned in the datasheet. A few hours of Eagle time down the gurgler :-( I must pay more attention in future.

  • It comes in a DIP package from TI part number CD74HC4067EE. I understand Sparkfun wishes to push there own products (i.e., SSOP to DIP Adapters) which is great! However I wish Sparkfun would sale this chip it in a DIP package, since it is offered in a DIP package from the manufacture.
    Thanks SF.

  • I’m not sure, but can the PCD8544 LCD Library be used in tandem with this? I’m trying to run 4 LCDs at once, so I need more outputs.
    These are the LCDs I’m trying to use:

  • There wouldn’t happen to be an eagle part for this, would there?

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