There is no separate data sheet for the MAX32666GWP+ non-BLE version of the chip. We can confirm that the MAX32666GWP+ has the BLE pins (VTXIN, VRXIN,VTXOUT, VRXOUT, ANT, VDD_BTx, VSSA_BTx) brought out on this version of the chip. The BLE block on the MAX32666GWP+, however, gets disabled as part of the part's final test program. This is done by modifying a specific OTP memory register that controls the BLE functionality. This register can’t be accessed after the part completes the factory test program.
Please note that a capacitor is recommended on the VREGO_D pin in case software ever turns on the VREGO_D output, which is controlled by a register bit. The customer can leave the capacitors off of the VDD_BTx, VRXOUT, and VTXOUT supply pins.
1. Can we leave VRXIN and VTXIN unconnected, or should we ground these pins?
Grounding is preferred.
This is ok.
3. Can we leave VDD_BT(1-5) unconnected or should we ground these pins?
Grounding is preferred.
4. How should we connect the ANT pin? The ANT pin can be left unconnected.