| 448521 | DM74LS28 | Quad 2-Input NOR Buffer | Fairchild Semiconductor |
| 448522 | DM74LS28 | Quad 2-Input NOR Buffer | National Semiconductor |
| 448523 | DM74LS283 | 4-Bit Binary Adder with Fast Carry | Fairchild Semiconductor |
| 448524 | DM74LS283 | 4-Bit Binary Adder with Fast Carry | National Semiconductor |
| 448525 | DM74LS283CW | 4-Bit Binary Adder with Fast Carry | Fairchild Semiconductor |
| 448526 | DM74LS283M | 4-Bit Binary Adder with Fast Carry | Fairchild Semiconductor |
| 448527 | DM74LS283M | 4-Bit Binary Adders with Fast Carry | National Semiconductor |
| 448528 | DM74LS283MX | 4-Bit Binary Adder with Fast Carry | Fairchild Semiconductor |
| 448529 | DM74LS283N | 4-Bit Binary Adder with Fast Carry | Fairchild Semiconductor |
| 448530 | DM74LS283N | 4-Bit Binary Adders with Fast Carry | National Semiconductor |
| 448531 | DM74LS28M | Quad 2-Input NOR Buffer | Fairchild Semiconductor |
| 448532 | DM74LS290 | 4-Bit Decade Counter | National Semiconductor |
| 448533 | DM74LS290M | 7 V, 4-bit decade counter | National Semiconductor |
| 448534 | DM74LS290N | 7 V, 4-bit decade counter | National Semiconductor |
| 448535 | DM74LS293 | 4-Bit Binary Counter | National Semiconductor |
| 448536 | DM74LS293M | 7 V, 4-bit binary counter | National Semiconductor |
| 448537 | DM74LS293N | 7 V, 4-bit binary counter | National Semiconductor |
| 448538 | DM74LS295A | 4-Bit Shift Register with TRI-STATE Outputs | National Semiconductor |
| 448539 | DM74LS295AM | 7 V, 4-bit shift register with TRI-STATE output | National Semiconductor |
|
| 448540 | DM74LS295AN | 7 V, 4-bit shift register with TRI-STATE output | National Semiconductor |
| 448541 | DM74LS298 | Quad 2-Port Register Multiplexer with Storage | Fairchild Semiconductor |
| 448542 | DM74LS298 | Quad 2-Port Register (Multiplexer with Storage) | National Semiconductor |
| 448543 | DM74LS298M | 7 V, quad 2-port register multiplexer with storage | National Semiconductor |
| 448544 | DM74LS298N | Quad 2-Port Register Multiplexer with Storage | Fairchild Semiconductor |
| 448545 | DM74LS298N | 7 V, quad 2-port register multiplexer with storage | National Semiconductor |
| 448546 | DM74LS299 | 8-Input Universal Shift/Storage Register with Common Parallel I/O Pins | Fairchild Semiconductor |
| 448547 | DM74LS299 | 8-Input Universal Shift/Storage Register with Common Parallel I/O Pins | National Semiconductor |
| 448548 | DM74LS299N | 8-Input Universal Shift/Storage Register with | Fairchild Semiconductor |
| 448549 | DM74LS299N | 8-Input Universal Shift/Storage Register with | Fairchild Semiconductor |
| 448550 | DM74LS299N | 8-Input Universal Shift/Storage Register with Common Parallel I/O Pins | National Semiconductor |
| 448551 | DM74LS299N | 8-Input Universal Shift/Storage Register with Common Parallel I/O Pins | National Semiconductor |
| 448552 | DM74LS299WM | 8-Input Universal Shift/Storage Register with | Fairchild Semiconductor |
| 448553 | DM74LS299WM | 8-Input Universal Shift/Storage Register with Common Parallel I/O Pins | National Semiconductor |
| 448554 | DM74LS299WMX | 8-Input Universal Shift/Storage Register with Common Parallel I/O Pins | Fairchild Semiconductor |
| 448555 | DM74LS30 | 8-Input NAND Gate | Fairchild Semiconductor |
| 448556 | DM74LS30 | 8-Input NAND Gate | National Semiconductor |
| 448557 | DM74LS30M | 8-Input NAND Gate | Fairchild Semiconductor |
| 448558 | DM74LS30M | 8-Input NAND Gate | National Semiconductor |
| 448559 | DM74LS30N | 8-Input NAND Gate | Fairchild Semiconductor |
| 448560 | DM74LS30N | 8-Input NAND Gate | National Semiconductor |
