| 54ACTQ533 | National Semiconductor | Quiet Series Octal Transparent Latch with TRI-STATE Outputs |
| 54ACTQ533LMQB | National Semiconductor | Quiet Series Octal Transparent Latch with TRI-STATE Outputs |
| 54ACTQ533DMQB | National Semiconductor | Quiet Series Octal Transparent Latch with TRI-STATE Outputs |
| 54ACTQ533FMQB | National Semiconductor | Quiet Series Octal Transparent Latch with TRI-STATE Outputs |