Thank you so much On Monday, June 15, 2020 at 1:57:58 PM UTC-4, Dennis Bieber wrote: > > On Mon, 15 Jun 2020 09:10:27 -0700 (PDT), in > gmane.comp.hardware.beagleboard.user Nathan Smith > <[email protected] <javascript:>> 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 > >
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