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SN74ALS574BDW SN74LS377DWR CD74HC299M SN74LS541DW
贴片直插SN74LS38NG，SN74LS377H，SN74LS365A，SN74LS373H，4
贴片直插SN74LS377N，SN74LS42MG，SN74LS641H，SN74LS541M，4
