正品DM7447AN DM7445DC DM7442AN DM74393N DM7438MX

贴插PT6319LQ-TA2019AP-IRGI4065-DM7442AN-FQPF4N60-N

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DM74174N/DM7438N/DM7442AN

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DM7442AN芯片 《 IC DECODER BCD-DECIMAL 16-DIP 》

DM7438N DM7442AN DM7445N

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DM7445N/DM7438N/DM7442AN