| 描述 | 计数器 IC Dl 4-Bit Dec Counter |
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【Fairchild Semiconductor】DM74LS390N,计数器 IC Dl 4-Bit Dec Counter
【Fairchild Semiconductor】DM74LS393M,计数器 IC Dl 4-Bit Dec Counter
【Fairchild Semiconductor】DM74LS393MX,计数器 IC Dl 4-Bit Dec Counter
【Fairchild Semiconductor】DM74LS393N,计数器 IC Dl 4-Bit Dec Counter
【Fairchild Semiconductor】DM74LS47M,编码器、解码器、复用器和解复用器 BCD to 7-Seg Dec/Drv
【Fairchild Semiconductor】DM74LS47MX,编码器、解码器、复用器和解复用器 BCD to 7-Seg Dec/Drv
【Fairchild Semiconductor】DM74LS47N,编码器、解码器、复用器和解复用器 BCD to 7-Seg Dec/Drv