What are the absolute Min and Max voltages on any port pin of a BLE Radio Silicon?

[GrCa_1363456]

Regarding the Port Signals on the CYW20721 (Px.x) along with tables 9, 16 and 17 from the CYW20721 datasheet…

What are the absolute voltage ratings for any GPIO Port Pin (Px.x)?

Table 9 does not appear to list Absolute Maximum ratings for individual port pins Px.x.

Table 17 lists “GPIO input voltage” which states, “Always lower that avddBAT”.

Is there a requirement, assumed or stated, for voltage potential between VDDBAT and VDDIO?

If a port is powered by 1.8V (VDDIO) nominal what is minimum and maximum voltages to pins on that port? 

If a port is powered by 3.0V (VDDIO) nominal what is minimum and maximum voltages to pins on that port?
Does either answer change if VBAT is either 1.8V or 3.0V?

Greg

[DheerajPK_41 · Accepted solution]

Hi,

The max & min voltages can be found in Table 12. Recommended Operating Conditions. 

Please check Table 5. 40-Pin QFN and WLCSP GPIOs for the voltage domain. 

https://www.infineon.com/dgdl/Infineon-CYW20721_Enhanced_Low_Power_BR_EDR_BLE_Bluetooth_5.0_SOC_for_...

Thanks,

-Dheeraj.P.K

[GrCa_1363456]

Dheerraj,

Table 12 is for the power inputs. I'm looking for Absolute Maximum Ratings for the signal inputs (GPIO Port Pins).

[DheerajPK_41]

Update:

At the present moment, the available values are given under the electrical specifications in the datasheet. Digital I/O Characteristics are given in table 16 in the datasheet. Table 12 gives the recommended operating conditions. I guess, these values are sufficient. 

There are no assumed or stated specifications apart from the values specified in the datasheet.