| 54AC574FMQB | National Semiconductor | Octal D Flip-Flop with TRI-STATE Outputs |
| 54AC574LMQB | National Semiconductor | Octal D Flip-Flop with TRI-STATE Outputs |
| 54AC646 | National Semiconductor | Octal Bus Transceiver and Register with TRI-STATE Outputs |
| 54AC74 | National Semiconductor | Dual D-Type Positive Edge-Triggered Flip-Flop |
| 54AC821 | National Semiconductor | 10-Bit D Flip-Flop with TRI-STATE Outputs |
| 54AC86 | National Semiconductor | Quad 2-input Exclusive-OR Gate |
| 54ACQ240 | National Semiconductor | Quiet Series Inverting Octal Buffer/Line Driver with TRI-STATE Outputs |
| 54ACQ240DMQB | National Semiconductor | Quiet Series Inverting Octal Buffer/Line Driver with TRI-STATE Outputs |
| 54ACQ240FMQB | National Semiconductor | Quiet Series Inverting Octal Buffer/Line Driver with TRI-STATE Outputs |
| 54ACQ240LMQB | National Semiconductor | Quiet Series Inverting Octal Buffer/Line Driver with TRI-STATE Outputs |
| 54ACQ244 | National Semiconductor | Quiet Series Octal Buffer/Line Driver w/TRI-STATE Outputs |
| 54ACQ245 | National Semiconductor | Quiet Series Octal Bidirectional Transceiver w/TRI-STATE Outputs |
| 54ACQ373 | National Semiconductor | Quiet Series Octal Transparent Latch with TRI-STATE Outputs |
| 54ACQ374 | National Semiconductor | Quiet Series Octal D Flip-Flop with TRI-STATE Outputs |
| 54ACQ374W-QMLV | National Semiconductor | Quiet Series Octal D Flip-Flop with TRI-STATE Outputs |
| 54ACQ573 | National Semiconductor | Quiet Series Octal Latch with TRI-STATE Outputs |
| 54ACT00 | National Semiconductor | Quad 2-Input NAND Gate |
| 54ACT109 | National Semiconductor | Dual JK Positive Edge-Triggered Flip-Flop |
| 54ACT112 | National Semiconductor | Dual JK Negative Edge Triggered Flip-Flop |
| 54ACT138 | National Semiconductor | 1-of-8 Decoder |