On Mon, 15 Jun 2020 09:10:27 -0700 (PDT), in gmane.comp.hardware.beagleboard.user Nathan Smith <[email protected]> wrote:
>Is anybody familiar with the voltage of the output pins? I looked through >the technical reference sheet, but I could not find this information. > https://github.com/beagleboard/beaglebone-black/wiki/System-Reference-Manual#beaglebone-black-features-and-specification """ Expansion Connectors Power 5V, 3.3V , VDD_ADC(1.8V) 3.3V I/O on all signals McASP0, SPI1, I2C, GPIO(69 max), LCD, GPMC, MMC1, MMC2, 7 AIN (1.8V MAX), 4 Timers, 4 Serial Ports, CAN0, EHRPWM(0,2),XDMA Interrupt, Power button, Expansion Board ID (Up to 4 can be stacked) """ The chipset used for the various beagles is 3.3V based (analog inputs are limited to 1.8V). Presuming the old 30/70% thresholds for CMOS signals, LOW is 0.0..1.0, HIGH is 2.3..3.3, 1.0..2.3 is indeterminate (the chips should be outputting close to the 0.0 and 3.3 levels, but any input device should accept the range). -- Dennis L Bieber -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/b7dfeflt418jupqj0b51j4pfcch7li1ua3%404ax.com.
