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Part Number: ISO7721
To whom it may concern,
I was looking to use the ISO7721DBQ, but would like to confirm if the part performs level-translation if I was to connect VCC1 to 3.3V and VCC2 to 5V?
It is not clear from the datasheet as reference to different voltages on VCC1 and VCC2 is only made to ISO7720 and not the ISO7721. All references to ISO7721 have VCC1 and VCC2 at the same voltage. Please confirm.
Look forward to your response.
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In reply to Abhi Aarey:
Thanks for your prompt response, but I don't feel this is quite resolved yet.
This indeed was my assumption too, however the following items in the datasheet made me think otherwise:
a) Section 6.19: Supply currents given for VCC1@3v3 and VCC2@5V specifically for ISO7720, but only VCC1=VCC2= 3v3 or 5V given for ISO7721
b) Section 9.2: Example using the ISO7721 is given using VCC1=VCC2= 3v3
Please confirm if specifically the ISO7721 is designed to perform level-translation and it is acceptable to use VCC1=3v3 and VCC2=5V?
Also, wrt point a) above, could you provide a similar graph (i.e. Supply current Vs Data Rate, with and without loading) for ICC1@VCC=3v3 and ICC2@VCC=5V?
Look forward your response.
In reply to Bhavesh Tailor:
Thank you for clearing this up Abhi.
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