| Компонент | Описание | Производитель | |
| 54ACTQ821SDMQB | Quiet series 10-bit D flip-flop with TRI-STATE outputs. TTL-compatible. Device with environmental and burn-in processing shipped in tubes. |
National Semiconductor |
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| 54ACTQ821SDMQB | Quiet Series 10-Bit D Flip-Flop with TRI-STATE Outputs |
National Semiconductor |