| Manufacturer | Part # | Datasheet | Description |
 National Semiconductor ... | CD4001 |  164Kb/ 6P | Quad 2-Input NOR(NAND) Buffered B Series Gate |
 National Semiconductor ... | CD40011 |  167Kb/ 6P | Quad 2-Input NOR,NAND Buffered B Series Gate |
| CD40011BMJ |  167Kb/ 6P | Quad 2-Input NOR,NAND Buffered B Series Gate |
 National Semiconductor ... | CD4001B |  164Kb/ 6P | Quad 2-Input NOR(NAND) Buffered B Series Gate |
 National Semiconductor ... | CD4001BC |  167Kb/ 6P | Quad 2-Input NOR,NAND Buffered B Series Gate |
 National Semiconductor ... | CD4001BC |  164Kb/ 6P | Quad 2-Input NOR(NAND) Buffered B Series Gate |