| Manufacturer | Part # | Datasheet | Description |
 National Semiconductor ... | 74F181 |  218Kb/10P | 4-Bit Arithmetic Logic Unit |
 National Semiconductor ... | 74F181PC |  218Kb/10P | 4-Bit Arithmetic Logic Unit |
 National Semiconductor ... | 74F181SC |  218Kb/10P | 4-Bit Arithmetic Logic Unit |
 National Semiconductor ... | 74F181SPC |  218Kb/10P | 4-Bit Arithmetic Logic Unit |
 National Semiconductor ... | 74F181PC |  218Kb/ 10P | 4-Bit Arithmetic Logic Unit |
 National Semiconductor ... | 74F181SC |  218Kb/ 10P | 4-Bit Arithmetic Logic Unit |
 National Semiconductor ... | 74F181SPC |  218Kb/ 10P | 4-Bit Arithmetic Logic Unit |
 National Semiconductor ... | 74F182 |  164Kb/ 8P | Carry Lookahead Generator |
 National Semiconductor ... | 74F182PC |  164Kb/ 8P | Carry Lookahead Generator |
 National Semiconductor ... | 74F182SJ |  164Kb/ 8P | Carry Lookahead Generator |
 National Semiconductor ... | 74F189 |  166Kb/ 8P | 64-Bit Random Access Memory with TRI-STATEE Outputs |