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贴片直插SN74LS247D，SN74LS244M，SN74LS193D，SN74LS193N，4
贴片直插SN74LS183N，SN74LS221M，SN74LS244N，SN74LS244H，4
CD74FCT244M SN74LVC373ADW SN74ABT241ADW SN74LS541DWR
原SN74ABT244DB MC74HC04ADT SN74LS273NS MC74F74M
