<Tr> <Td> 74x677 </Td> <Td> </Td> <Td> 16 - bit address comparator, enable </Td> <Td> </Td> <Td> </Td> <Td> 24 </Td> <Td> SN74ALS677 </Td> </Tr> <Tr> <Td> 74x678 </Td> <Td> </Td> <Td> 16 - bit address comparator, latch </Td> <Td> </Td> <Td> </Td> <Td> 24 </Td> <Td> SN74ALS678 </Td> </Tr> <Tr> <Td> 74x679 </Td> <Td> </Td> <Td> 12 - bit address comparator, latch </Td> <Td> </Td> <Td> </Td> <Td> 20 </Td> <Td> SN74ALS679 </Td> </Tr> <Tr> <Td> 74x680 </Td> <Td> </Td> <Td> 12 - bit address comparator, enable </Td> <Td> </Td> <Td> </Td> <Td> 20 </Td> <Td> SN74ALS680 </Td> </Tr>

4 input and gate 74ls series part number