MM74HC4040M
MM74HC4040M_Q
MM74HC4040MTC
MM74HC4040MTC_Q
MM74HC4040MTCX
MM74HC4040MX
MM74HC4040MX_NL
MM74HC4040MX_Q
MM74HC4040N
MM74HC4040N_Q
19129911934(手机优先微信同号)
19129491934(手机优先微信同号)