(Note: Sorry, I'm not cypress, but I studied this for myself, too)
"PSoC 4000S Family PSoC 4 Architecture Reference Manual (TRM)"
Document No.002-10129 Rev.*A
In 8. Power Supply and Monitoring
There are two scenarios
(1) Single 1.8V to 5.5V Unreguralted Supply
According to the Figure 8-2 VDDD and VDDA are supposed to be connected.
So I suppose that the VDDD_ABS applies to VDDA_ABS,(if I may call it so), in this scenario.
(2) Direct 1.71V to 1.89V Regulated Supply
In the note 1 of 8.1 Block Diagram it is written as below.
So I suppose that the VDDA_ABS is 1.89V in this scenario.
1. When the system supply is in the range 1.80 V to 1.89 V, both direct supply and internal regulator options can be used. The selection can be made depending on the user’s system capability. Note that the supply voltage cannot go above 1.89 V for the direct supply option because it will damage the device. It should
not go below 1.80 V for the internal regulator option because the regulator will turn off.
Thank you for your comment.
I am going to use it as an example.
Please comment about VDDA absolute voltage.
I think VDDA absolute voltage is the same as VDDD.
(VDDD_ABS: -0.5V to 6V)
If user uses “Direct 1.71 V to 1.89 V Regulated Supply”, I think that VCCD absolute voltage has priority over VDDD.
Because VCCD_ABS is lower than VDDD_ABS.
Could you please let us know a correct value of VDDA absolute voltage?
And can cypress add a description of VDDA absolute voltage to DS?
I thing your comments about this point is meaningful.
VDDA should has same absolute range with VDDD. Please let me discuss it with Cypress team internally and update the thread when I got a conclusion.
Thank you for your support.
I will wait your update.
Is there any update about below?
>>> Please let me discuss it with Cypress team internally and update the thread when I got a conclusion.
Can you update this discussion?