Microcontroller DAC module situation

[Flyback]

Hello,
In the DAC column of the following product selector guide, "5b/8b/9b" presumably means "5 bit/8bit/9bit"?

Microchip product selector guide...
**broken link removed**

We can't find a single microcontroller that has all our requirements because none have 3 DAC outputs, and so they all need an external DAC IC, which needs to be communicated with via a serial module, and none of us can use serial modules on microcontrollers....therefore, do you believe we are better off using two microcontrollers?......one with the three DAC modules on it that we need, and the other with all the other stuff (ADC's digital I/O, PWM outputs etc) that we need?

 

[Ian Rogers]

and none of us can use serial modules on microcontrollers...

There are very few Micro's that have even one DAC.... If you use two of the I2C MCP4922 chips you will have four 12 bit DAC's

The I2C module is supported by most compilers, so you don't need to do anything...

 

[Flyback]

The I2C module needs to be set up...its complex....."flowcode" software can't do I2C.

 

[geko]

The I2C module needs to be set up...its complex....."flowcode" software can't do I2C.

This seems to suggest it can do I2C
https://www.matrixtsl.com/wiki/index.php?title=Component:_ID_24219805_113d_4b12_b6bd_e1b0b0c33981

 

[Ian Rogers]

If you use two of the I2C MCP4922 chips you will have four 12 bit DAC's

Whoops... This is an SPI device.... Sorry.. BUT!!! The SPI is supported in flowcde..
https://www.matrixtsl.com/wiki/index.php?title=Component:_ID_4627d2fb_b41e_44cf_b125_e8511e5ebaa4