| TTL Cross Reference (80's) | | | | 7490 Philips | |
| TTL Cross Reference (80's) | | | | DM7490N National Semiconductor | |
| TTL Cross Reference (80's) | | | | FJJ14 Philips | |
| TTL Cross Reference (80's) | | | | FLJ161 Siemens | |
| TTL Cross Reference (80's) | | | | HD2519 Hitachi | |
| TTL Cross Reference (80's) | | | | HD2519P Hitachi | |
| TTL Cross Reference (80's) | | | | HD7490A Hitachi | |
| TTL Cross Reference (80's) | | | | HD7490AP Hitachi | |
| TTL Cross Reference (80's) | | | | M53290P Mitsubishi | |
| TTL Cross Reference (80's) | | | | N7490A Signetics | |
| TTL Cross Reference (80's) | | | | N7490F Signetics | |
| TTL Cross Reference (80's) | | | | S5490A Signetics | |
| TTL Cross Reference (80's) | | | | S5490F Signetics | |
| TTL Cross Reference (80's) | | | | S5490W Signetics | |
| TTL Cross Reference (80's) | | | | TD3490AP Toshiba | |
| TTL Cross Reference (80's) | | | | uPB219P NEC | |
| TTL Cross Reference (80's) | | | DM54LS90 National Semiconductor | MC7490P Motorola | |
| TTL Cross Reference (80's) | | | DM74LS90 National Semiconductor | MC7490F Motorola | |
| TTL Cross Reference (80's) | | | FC74LS90D Fairchild Semiconductor | FC7490D Fairchild Semiconductor | DM54L90F National Semiconductor |
| TTL Cross Reference (80's) | | | FC74LS90F Fairchild Semiconductor | FC9390D Fairchild Semiconductor | DM74L90N National Semiconductor |
| TTL Cross Reference (80's) | | | FC74LS90P Fairchild Semiconductor | FC7490P Fairchild Semiconductor | DM74L90J National Semiconductor |
| TTL Cross Reference (80's) | | | FC9LS90D Fairchild Semiconductor | FC9390P Fairchild Semiconductor | DM74L90F National Semiconductor |
| TTL Cross Reference (80's) | | | FC9LS90F Fairchild Semiconductor | MC5490F Motorola | |
| TTL Cross Reference (80's) | | | FC9LS90P Fairchild Semiconductor | MC5490L Motorola | |
| TTL Cross Reference (80's) | | | FM54LS90D Fairchild Semiconductor | FM5490D Fairchild Semiconductor | SN74L90AN Texas Instruments |
| TTL Cross Reference (80's) | | | FM54LS90F Fairchild Semiconductor | FM5490F Fairchild Semiconductor | SN74L90AT Texas Instruments |
| TTL Cross Reference (80's) | | | FM9LS90D Fairchild Semiconductor | FM9390D Fairchild Semiconductor | DM54L90J National Semiconductor |
| TTL Cross Reference (80's) | | | FM9LS90F Fairchild Semiconductor | FM9390F Fairchild Semiconductor | DM54L90N National Semiconductor |
| TTL Cross Reference (80's) | | | HD74LS90P Hitachi | DM5490W National Semiconductor | |
| TTL Cross Reference (80's) | | | M74LS90P Mitsubishi | DM7490J National Semiconductor | |
| TTL Cross Reference (80's) | | | N74LS90 Signetics | DM5490J National Semiconductor | |
| TTL Cross Reference (80's) | | | N74LS90A Signetics | DM5490N National Semiconductor | |
| TTL Cross Reference (80's) | | | SN54L90J Texas Instruments | SN5490AJ Texas Instruments | SN54L90AJ Texas Instruments |
| TTL Cross Reference (80's) | | | SN54L90W Texas Instruments | SN5490AW Texas Instruments | SN54L90AN Texas Instruments |
| TTL Cross Reference (80's) | | | SN74L90J Texas Instruments | SN7490AJ Texas Instruments | SN54L90AT Texas Instruments |
| TTL Cross Reference (80's) | | | SN74L90N Texas Instruments | SN7490AN Texas Instruments | SN74L90AJ Texas Instruments |
| TTL Cross Reference (80's) | | | SN74LS90P Texas Instruments | MC7490L Motorola | |
