Hello Mr. Charles, Seth here. Okay. I was looking at the incorrect info. when looking for CMOS info. I was searching the Rev. C SRM instead of the TRM for the am335x SoC. Thank you, sir.
Seth P.S. CMOS...good to know. Thank you. On Tuesday, January 15, 2019 at 11:41:24 AM UTC-6, Charles Steinkuehler wrote: > > On 1/15/2019 10:30 AM, Mala Dies wrote: > > Hello, > > > > I am looking to find out about the input signal from the BBB. If I am > using > > GPIO, what is the input signal? Is it GPIO or is it CMOS? I have done > > little research and I am looking for some basics on answers. > > > > ... > > > > I was dealing w/ DigiKey and they wanted me to know the input signal. I > > thought it was as easy as 3.3v to 5.0v shifting. > > Most of the inputs on the BBB are GPIO (General Purpose Input Output). > Most of the pins also have other functions (eg: timer input, UART, > etc) which can be selected via pin multiplexing. > > Some of the pins are not digital at all (eg: Analog ADC inputs). > > The I/O voltage varies, but is typically 3.3V for the digital I/O pins > and 1.8V for the analog inputs, with a few "oddball" pins (eg: the > real-time clock crystal pins, USB pins, etc). > > *ALL* of the inputs are CMOS, the AM3358 is a CMOS chip. > > > Seth > > > > P.S. I will keep up the research and I am currently searching online. I > > will look through my SRM too. > > The I/O specifications are not in the TRM, they are in the data sheet > for the specific part: > > http://www.ti.com/product/AM3358 > > -- > Charles Steinkuehler > [email protected] <javascript:> > -- website: http://www.machinekit.io blog: http://blog.machinekit.io github: https://github.com/machinekit --- You received this message because you are subscribed to the Google Groups "Machinekit" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. Visit this group at https://groups.google.com/group/machinekit. For more options, visit https://groups.google.com/d/optout.
