前先MSP430F412IPMRTPA6203A1QVRSN74HC273D¥10去看看深圳市恒科源电子发布了拍前先咨询TPA6203A1QVR SN74HC273D MSP430F412IPMR丝印TPA6203A1DGNTPA6203A1DRBTPA6203A1EVM¥30去看看能良科技发布了丝印TPA6203A1QVR TPA6203A1EVM TPA6203A1DRB TPA6203A1DGN