74LS244N , 74LS244N , 74LS244DB , 74LS244D/PHI-SOP7.2 , 74LS244D , 74LS244D , 74LS244D , 74LS244D , 74LS244D , 74LS244D , 74LS244D , 74LS244D , 74LS244D , 74LS244D , 74LS244* , 74LS244 , 74LS244 , 74LS244 , 74LS244 , 74LS244 , 74LS244 , 74LS244 , 74LS244 , 74LS244 , 74LS244 , 74LS244 , 74LS244 , 74LS244 , 74LS244 , 74LS244 , 74LS244 , 74LS244 , 74LS244 , 74LS243 (HD74LS243P) , 74LS243 , 74LS243 , 74LS243 , 74LS242 , 74LS241DWR , 74LS241B1 , 74LS241/TI , 74LS241/MOT , 74LS241 , 74LS241 , 74LS241 , 74LS241 , 74LS241 , 74LS241 , 74LS240-SMD (SN74LS240DW) , 74LS240P/HIT , 74ls240p , 74LS240P , 74LS240N/TI , 74LS240N/FSC , 74LS240N , 74LS240N , 74LS240N , 74LS240J , 74LS240DWR2 (SMDT+R) , 74LS240D , 74LS240D , 74LS240B1 , 74LS240A , 74LS240/TI-SOP5.2中 , 74LS240 , 74LS240 , 74LS240 , 74LS240 , 74LS240 , 74LS240 , 74LS240 , 74LS240 , 74LS240 , 74LS240 , 74LS240 , 74LS240 , 74LS240 , 74LS240 , 74LS221P/HIT , 74LS221N/TI , 74LS221N , 74LS221 ON , 74LS221 , 74LS221 , 74LS221 , 74LS221 , 74LS221 , 74LS22/SSS , 74LS21P/HIT , 74ls21p , 74LS244N
74LS244N
74LS244DB
74LS244D/PHI-SOP7.2
74LS244D
74LS244D
74LS244D
74LS244D
74LS244D
74LS244D
74LS244D
74LS244D
74LS244D
74LS244D
74LS244*
74LS244
74LS244
74LS244
74LS244
74LS244
74LS244
74LS244
74LS244
74LS244
74LS244
74LS244
74LS244
74LS244
74LS244
74LS244
74LS244
74LS244
74LS244
74LS243 (HD74LS243P)
74LS243
74LS243
74LS243
74LS242
74LS241DWR
74LS241B1
74LS241/TI
74LS241/MOT
74LS241
74LS241
74LS241
74LS241
74LS241
74LS241
74LS240-SMD (SN74LS240DW)
74LS240P/HIT
74ls240p
74LS240P
74LS240N/TI
74LS240N/FSC
74LS240N
74LS240N
74LS240N
74LS240J
74LS240DWR2 (SMDT+R)
74LS240D
74LS240D
74LS240B1
74LS240A
74LS240/TI-SOP5.2中
74LS240
74LS240
74LS240
74LS240
74LS240
74LS240
74LS240
74LS240
74LS240
74LS240
74LS240
74LS240
74LS240
74LS240
74LS221P/HIT
74LS221N/TI
74LS221N
74LS221 ON
74LS221
74LS221
74LS221
74LS221
74LS221
74LS22/SSS
74LS21P/HIT
74ls21p