华为电平规范

319...............................................................................318.4GTL.................................................................308.3GTL.................................................................308.2GTLPCB.............................................................298.1GTL...........................................................298GTL................................................................287.7LVDS.............................................................277.6LVDS...............................................................267.5LVDS...................................................................257.4LVDS...................................................................247.3LVDS...........................................................237.2LVDS...............................................................227.1LVDS.................................................................227LVDS..............................................................226.7ECL.............................................................216.6ECL.............................................................196.5ECL.............................................................196.4ECL.................................................................186.3PECL/LVPECL..................................................176.2ECL.................................................................166.1ECL.................................................................166ECL................................................................155.2....................................................155.1..........................................................................155EPLDFPGA..........................................................144.52.5VCMOS......................................................144.45VCMOS............................................................144.33.3VTTL/CMOS......................................................144.25VTTL..............................................................114.1................................................................114TTLCMOS..............................................................93.6.............................................................93.5TTLCMOS......................................................83.4.........................................................73.3TTLCMOS..............................................73.2TTLMOS...............................................63.1TTLCMOS......................................................63TTLCMOS.................................................................42.3TTLCMOS......................................................42.2.................................................................32.1.............................................................32TTLCMOS.......................................................11........................................................................(Vt)VilVihCMOSVihVilVilVihVohVihVtVilVol6Ioh7Iol8Iih9Iil3*Iohm*Iih2RLVCCVol/Iolm*Iilnm2.2TTLCMOSLVTTLECLPECLGTLRS232RS422LVDSTTLCMOS5V5VTTL5VCMOS3.3V2.5V1.8V5VTTL5VCMOS3.3VLVTTL2.5V1.8VECL/PECLLVDSRS-422/485RS-232RS-422/485RS-2322.3TTLCMOS4