San Mao electronic
74139 - Dual Line 2-4 decoder
54139/74139
2 -4 :
139 2 -4 , 54/74S139 54/74LS139 , :
CT54S139/CT74S139 CT54LS139/CT74LS139
Tpd (AB->Y)(3 ) 7.5ns 22ns
PD 300mW 34mW
(G1),(A
(17 views)