74F652
TI
21322
DIP
74F652
SIG
4
74F652
FAIRCHILD
19960
NA
74F652
TI
6540
DIP
onsemi(安森美)
7350
PDIP24
S
589220
PHILIPS/飞利浦
1709
DIP24
S
439
NA/
onsemi(安森美)
2181
SOP24
原厂
1252
HPI
1007
SOP
PHILIPS
9500
DIP24
SIGNETICS
4580
DIP-24
PHILIPS/飞利浦
309
SOP
FAIRCHILDSE
9856
PDIP