| 131521 | 54ACT258D | Quad 2-Input Multiplexer with TRI-STATE Outputs | National Semiconductor |
| 131522 | 54ACT258F | Quad 2-Input Multiplexer with TRI-STATE Outputs | National Semiconductor |
| 131523 | 54ACT258L | Quad 2-Input Multiplexer with TRI-STATE Outputs | National Semiconductor |
| 131524 | 54ACT258MDA | Quad 2-Input Multiplexer with TRI-STATE Outputs | National Semiconductor |
| 131525 | 54ACT273 | Rad-Hard Octal D-Type Flip-Flop With Clear | ST Microelectronics |
| 131526 | 54ACT283 | 4-Bit Binary Full Adder with Fast Carry | National Semiconductor |
| 131527 | 54ACT283D | 4-Bit Binary Full Adder with Fast Carry | National Semiconductor |
| 131528 | 54ACT283DMQB | 4-Bit Binary Full Adder with Fast Carry | National Semiconductor |
| 131529 | 54ACT283DMQB | 4-Bit Binary Full Adder with Fast Carry | National Semiconductor |
| 131530 | 54ACT283F | 4-Bit Binary Full Adder with Fast Carry | National Semiconductor |
| 131531 | 54ACT283FMQB | 4-Bit Binary Full Adder with Fast Carry | National Semiconductor |
| 131532 | 54ACT283FMQB | 4-Bit Binary Full Adder with Fast Carry | National Semiconductor |
| 131533 | 54ACT283L | 4-Bit Binary Full Adder with Fast Carry | National Semiconductor |
| 131534 | 54ACT283LMQB | 4-Bit Binary Full Adder with Fast Carry | National Semiconductor |
| 131535 | 54ACT283LMQB | 4-Bit Binary Full Adder with Fast Carry | National Semiconductor |
| 131536 | 54ACT299 | 8-Input Universal Shift/Storage Register with Common I/O Pins | National Semiconductor |
| 131537 | 54ACT299FM-MLS | 8-Input Universal Shift/Storage Register with Common Parallel I/O Pins | National Semiconductor |
| 131538 | 54ACT299J | 8-Input Universal Shift/Storage Register with Common Parallel I/O Pins | National Semiconductor |
| 131539 | 54ACT299LCC | 8-Input Universal Shift/Storage Register with Common Parallel I/O Pins | National Semiconductor |
|
| 131540 | 54ACT32 | Rad-Hard Quad 2-Input OR Gate | ST Microelectronics |
| 131541 | 54ACT323 | 8-Bit Universal Shift-Storage Register with Synchronous Reset and Common I/O Pins | National Semiconductor |
| 131542 | 54ACT323D | 8-Bit Universal Shift/Storage Register with Synchronous Reset and Common I/O Pins | National Semiconductor |
| 131543 | 54ACT323F | 8-Bit Universal Shift/Storage Register with Synchronous Reset and Common I/O Pins | National Semiconductor |
| 131544 | 54ACT323F | 8-Bit Universal Shift/Storage Register with Synchronous Reset and Common I/O Pins | National Semiconductor |
| 131545 | 54ACT323L | 8-Bit Universal Shift/Storage Register with Synchronous Reset and Common I/O Pins | National Semiconductor |
| 131546 | 54ACT373 | Octal Transparent Latch with TRI-STATE Outputs | National Semiconductor |
| 131547 | 54ACT373 | Rad-Hard Octal D-Type Latch 3-state | ST Microelectronics |
| 131548 | 54ACT373D | Octal Transparent Latch with TRI-STATE Outputs | National Semiconductor |
| 131549 | 54ACT373DM | Octal Transparent Latch with TRI-STATE Outputs | National Semiconductor |
| 131550 | 54ACT373DM-MLS | Octal Transparent Latch with TRI-STATE Outputs | National Semiconductor |
| 131551 | 54ACT373DM-MLS | Octal Transparent Latch with TRI-STATE Outputs | National Semiconductor |
| 131552 | 54ACT373F | Octal Transparent Latch with TRI-STATE Outputs | National Semiconductor |
| 131553 | 54ACT373FM-MLS | Octal Transparent Latch with TRI-STATE Outputs | National Semiconductor |
| 131554 | 54ACT373FM-MLS | Octal Transparent Latch with TRI-STATE Outputs | National Semiconductor |
| 131555 | 54ACT373L | Octal Transparent Latch with TRI-STATE Outputs | National Semiconductor |
| 131556 | 54ACT374 | Octal D Flip-Flop with TRI-STATE Outputs | National Semiconductor |
| 131557 | 54ACT374 | Rad-Hard Octal D-Type Flip-Flop 3-state | ST Microelectronics |
| 131558 | 54ACT374D | Octal D Flip-Flop with TRI-STATE Outputs | National Semiconductor |
| 131559 | 54ACT374DM | Octal D Flip-Flop with TRI-STATE Outputs | National Semiconductor |
| 131560 | 54ACT374F | Octal D Flip-Flop with TRI-STATE Outputs | National Semiconductor |
