Author Topic: Can't understant from nxp datasheet... Are those 5VT pins available or not?  (Read 919 times)

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Offline JPorticiTopic starter

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I am to design a data logger for product testing (Basically Voltage/Current measurement of the target device power input, UART to receive data from the target device, RTC, external flash and usb to dump the saved data to a computer for analysis)

I was thinking to use an ARM MCU  for this project and between others i am considering using a NXP LPC11U68JBDxx
I wish to keep the board dimension as small as possible, i would like to use the 48 pin LQFP package variant of the MCU

but looking through the datasheet I see that there are not many 5VT pins, and the indication is only put in the lqfp100 coloums.
does this mean that all 5VT pins are only in the LQFP100? seem strange to me but better double check

The need of 5VT pins comes because all the target boards are 5V powered. In theory only the UART pins will have to interface with the target board and I guess i could use a level translator but, again, tigh space, if i can get away with two pullups, that's better

Product Page <- that's some ugly url
Datasheet - Reference Manual
 

Offline Cervisia

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As shown by, for example, footnote [2], these remarks are meant to apply to all three columns.
So these pins are 5V tolerant in all three packages.
 

Offline JPorticiTopic starter

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Of course. thanks, i was used to the foot note being present each time the condition was actually true
 


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