Does anyone know of a uC that has at least 3 DACs?
Even 1 DAC is not common.
LPC213X and LPC 2148 have 1 DAC, 10 bits.
Analog devices, AD702X familly have up to 4 12bits DACs.
But with a simple PWM, you can build a cheap DAC.
Or use a serial DAC, like DAC7612, dual 12 bit, connected to a SPI port.
Angelo
You can multiplex a single DAC with an analogue switch/mux… Maxim and Intersil have a few.
[Edit] For a DAC you’ll need sample & hold.