| Nr. | Nome da parte | Descrição | Fabricante |
| 20501 | DM74S287AV | 30 ns, (256 x 4) de 1024 bits TTL PROM | National Semiconductor |
| 20502 | DM74S287J | 50 ns, (256 x 4) de 1024 bits TTL PROM | National Semiconductor |
| 20503 | DM74S287N | 50 ns, (256 x 4) de 1024 bits TTL PROM | National Semiconductor |
| 20504 | DM74S287V | 50 ns, (256 x 4) de 1024 bits TTL PROM | National Semiconductor |
| 20505 | DM74S288 | PROM DE 256-BIT TTL | National Semiconductor |
| 20506 | DM74S288 | PROM DE 256-BIT TTL | National Semiconductor |
| 20507 | DM74S288 | PROM DE 256-BIT TTL | National Semiconductor |
| 20508 | DM74S288AJ | PROM DE 256-BIT TTL | National Semiconductor |
| 20509 | DM74S288AJ | PROM DE 256-BIT TTL | National Semiconductor |
| 20510 | DM74S288AJ | PROM DE 256-BIT TTL | National Semiconductor |
| 20511 | DM74S288AN | PROM DE 256-BIT TTL | National Semiconductor |
| 20512 | DM74S288AN | PROM DE 256-BIT TTL | National Semiconductor |
| 20513 | DM74S288AN | PROM DE 256-BIT TTL | National Semiconductor |
| 20514 | DM74S288AV | PROM DE 256-BIT TTL | National Semiconductor |
| 20515 | DM74S288AV | PROM DE 256-BIT TTL | National Semiconductor |
| 20516 | DM74S288AV | PROM DE 256-BIT TTL | National Semiconductor |
| 20517 | DM74S288J | PROM DE 256-BIT TTL | National Semiconductor |
| 20518 | DM74S288J | PROM DE 256-BIT TTL | National Semiconductor |
| 20519 | DM74S288J | PROM DE 256-BIT TTL | National Semiconductor |
| 20520 | DM74S288N | PROM DE 256-BIT TTL | National Semiconductor |
| 20521 | DM74S288N | PROM DE 256-BIT TTL | National Semiconductor |
| 20522 | DM74S288N | PROM DE 256-BIT TTL | National Semiconductor |
| 20523 | DM74S288V | PROM DE 256-BIT TTL | National Semiconductor |
| 20524 | DM74S288V | PROM DE 256-BIT TTL | National Semiconductor |
| 20525 | DM74S288V | PROM DE 256-BIT TTL | National Semiconductor |
| 20526 | DM74S289J | 4,75 V a 5,25 V, 64-bit (16 x 4) de coletor aberto RAM TRI-STATE RAM | National Semiconductor |
| 20527 | DM74S289N | 4,75 V a 5,25 V, 64-bit (16 x 4) de coletor aberto RAM TRI-STATE RAM | National Semiconductor |
| 20528 | DM74S299 | Registo Universal TRI-STATE De 8-Bit Shift/Storage | National Semiconductor |
| 20529 | DM74S299N | 7 V, TRI-STATE 8-bit mudança universal / registro de armazenamento | National Semiconductor |
| 20530 | DM74S30 | Porta De 8-Input Nand | National Semiconductor |
| 20531 | DM74S32 | Quad 2-Input OU Porta | National Semiconductor |
| 20532 | DM74S373 | D-Tipo octal TRI-STATE travas transparentes e flip-flops Borda-Provocados | National Semiconductor |
| 20533 | DM74S373N | 7 V, TRI-STATE octal trinco do tipo D transparente e disparado por borda flip-flop | National Semiconductor |
| 20534 | DM74S373WM | 7 V, TRI-STATE octal trinco do tipo D transparente e disparado por borda flip-flop | National Semiconductor |
| 20535 | DM74S374 | D-Tipo octal TRI-STATE travas transparentes e flip-flops Borda-Provocados | National Semiconductor |
| 20536 | DM74S374N | 7 V, TRI-STATE octal trinco do tipo D transparente e disparado por borda flip-flop | National Semiconductor |
| 20537 | DM74S374WM | 7 V, TRI-STATE octal trinco do tipo D transparente e disparado por borda flip-flop | National Semiconductor |
| 20538 | DM74S381 | Gerador Aritmético Da Lógica Unit/Function | National Semiconductor |
| 20539 | DM74S381N | 7 V, unidade lógica aritmética / gerador de função | National Semiconductor |
| 20540 | DM74S387AJ | 30 ns, (256 x 4) de 1024 bits TTL PROM | National Semiconductor |
| 20541 | DM74S387AN | 30 ns, (256 x 4) de 1024 bits TTL PROM | National Semiconductor |
| 20542 | DM74S387AV | 30 ns, (256 x 4) de 1024 bits TTL PROM | National Semiconductor |
| 20543 | DM74S387J | 50 ns, (256 x 4) de 1024 bits TTL PROM | National Semiconductor |
| 20544 | DM74S387N | 50 ns, (256 x 4) de 1024 bits TTL PROM | National Semiconductor |
| 20545 | DM74S387V | 50 ns, (256 x 4) de 1024 bits TTL PROM | National Semiconductor |
| 20546 | DM74S40 | Dual O Amortecedor De 4-Input Nand | National Semiconductor |
| 20547 | DM74S472AJ | 45 ns, (512 x 8) de 4096 bits TTL PROM | National Semiconductor |
| 20548 | DM74S472AN | 45 ns, (512 x 8) de 4096 bits TTL PROM | National Semiconductor |
| 20549 | DM74S472AV | 45 ns, (512 x 8) de 4096 bits TTL PROM | National Semiconductor |
| 20550 | DM74S472BJ | 35 ns, (512 x 8) de 4096 bits TTL PROM | National Semiconductor |
| 20551 | DM74S472BN | 35 ns, (512 x 8) de 4096 bits TTL PROM | National Semiconductor |
| 20552 | DM74S472BV | 35 ns, (512 x 8) de 4096 bits TTL PROM | National Semiconductor |
| 20553 | DM74S472J | 60 ns, (512 x 8) de 4096 bits TTL PROM | National Semiconductor |
| 20554 | DM74S472N | 60 ns, (512 x 8) de 4096 bits TTL PROM | National Semiconductor |
| 20555 | DM74S472V | 60 ns, (512 x 8) de 4096 bits TTL PROM | National Semiconductor |
| 20556 | DM74S473 | (512 x 8) PROM de 4096-Bit TTL | National Semiconductor |
| 20557 | DM74S473AJ | (512 x 8) PROM de 4096-Bit TTL | National Semiconductor |
| 20558 | DM74S473AJ | (512 x 8) PROM de 4096-Bit TTL | National Semiconductor |
| 20559 | DM74S473AJ | (512 x 8) PROM de 4096-Bit TTL | National Semiconductor |
| 20560 | DM74S473AN | (512 x 8) PROM de 4096-Bit TTL | National Semiconductor |
| 20561 | DM74S473AN | (512 x 8) PROM de 4096-Bit TTL | National Semiconductor |
| 20562 | DM74S473AN | (512 x 8) PROM de 4096-Bit TTL | National Semiconductor |
| 20563 | DM74S473AV | (512 x 8) PROM de 4096-Bit TTL | National Semiconductor |
| 20564 | DM74S473AV | (512 x 8) PROM de 4096-Bit TTL | National Semiconductor |
| 20565 | DM74S473AV | (512 x 8) PROM de 4096-Bit TTL | National Semiconductor |
| 20566 | DM74S473J | (512 x 8) PROM de 4096-Bit TTL | National Semiconductor |
| 20567 | DM74S473J | (512 x 8) PROM de 4096-Bit TTL | National Semiconductor |
| 20568 | DM74S473J | (512 x 8) PROM de 4096-Bit TTL | National Semiconductor |
| 20569 | DM74S473N | (512 x 8) PROM de 4096-Bit TTL | National Semiconductor |
| 20570 | DM74S473N | (512 x 8) PROM de 4096-Bit TTL | National Semiconductor |
| 20571 | DM74S473N | (512 x 8) PROM de 4096-Bit TTL | National Semiconductor |
| 20572 | DM74S473V | (512 x 8) PROM de 4096-Bit TTL | National Semiconductor |
| 20573 | DM74S473V | (512 x 8) PROM de 4096-Bit TTL | National Semiconductor |
| 20574 | DM74S473V | (512 x 8) PROM de 4096-Bit TTL | National Semiconductor |
| 20575 | DM74S474AJ | 45 ns, (512 x 8) de 4096 bits TTL PROM | National Semiconductor |
| 20576 | DM74S474AN | 45 ns, (512 x 8) de 4096 bits TTL PROM | National Semiconductor |
| 20577 | DM74S474AV | 45 ns, (512 x 8) de 4096 bits TTL PROM | National Semiconductor |
| 20578 | DM74S474BJ | 35 ns, (512 x 8) de 4096 bits TTL PROM | National Semiconductor |
| 20579 | DM74S474BN | 35 ns, (512 x 8) de 4096 bits TTL PROM | National Semiconductor |
| 20580 | DM74S474BV | 35 ns, (512 x 8) de 4096 bits TTL PROM | National Semiconductor |
| 20581 | DM74S474J | 65 ns, (512 x 8) de 4096 bits TTL PROM | National Semiconductor |
| 20582 | DM74S474N | 65 ns, (512 x 8) de 4096 bits TTL PROM | National Semiconductor |
| 20583 | DM74S474V | 65 ns, (512 x 8) de 4096 bits TTL PROM | National Semiconductor |
| 20584 | DM74S475AJ | 45 ns, (512 x 8) de 4096 bits TTL PROM | National Semiconductor |
| 20585 | DM74S475AN | 45 ns, (512 x 8) de 4096 bits TTL PROM | National Semiconductor |
| 20586 | DM74S475AV | 45 ns, (512 x 8) de 4096 bits TTL PROM | National Semiconductor |
| 20587 | DM74S475J | 65 ns, (512 x 8) de 4096 bits TTL PROM | National Semiconductor |
| 20588 | DM74S475N | 65 ns, (512 x 8) de 4096 bits TTL PROM | National Semiconductor |
| 20589 | DM74S475V | 65 ns, (512 x 8) de 4096 bits TTL PROM | National Semiconductor |
| 20590 | DM74S51 | Porta Dupla De 2-Wide 2-Input AND-OR-INVERT | National Semiconductor |
| 20591 | DM74S570AJ | 45 ns, (512 x 4) de 2048 bits TTL PROM | National Semiconductor |
| 20592 | DM74S570AN | 45 ns, (512 x 4) de 2048 bits TTL PROM | National Semiconductor |
| 20593 | DM74S570AV | 45 ns, (512 x 4) de 2048 bits TTL PROM | National Semiconductor |
| 20594 | DM74S570J | 55 ns, (512 x 4) de 2048 bits TTL PROM | National Semiconductor |
| 20595 | DM74S570N | 55 ns, (512 x 4) de 2048 bits TTL PROM | National Semiconductor |
| 20596 | DM74S570V | 55 ns, (512 x 4) de 2048 bits TTL PROM | National Semiconductor |
| 20597 | DM74S571 | (512 x 4) PROM do TTL de 2048 bocados | National Semiconductor |
| 20598 | DM74S571AJ | 45 ns, (512 x 4) de 2048 bits TTL PROM | National Semiconductor |
| 20599 | DM74S571AN | 45 ns, (512 x 4) de 2048 bits TTL PROM | National Semiconductor |
| 20600 | DM74S571AV | 45 ns, (512 x 4) de 2048 bits TTL PROM | National Semiconductor |
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