制造商:NSC
制造商全称:National Semiconductor
功能描述:Synchronous 4-Bit Up/Down Decade Counter
MM74C193M
MM74C193MX
MM74C193N
MM74C221N
MM74C221N_Q
MM74C240N
MM74C240N_Q
MM74C240WM
MM74C240WM_Q
MM74C240WMX
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