| M54HC221 | DUAL MONOSTABLE MULTIVIBRATOR | Datasheet*) |
| M54HC221A | DUAL MONOSTABLE MULTIVIBRATOR | Datasheet*) |
| M54HC221AB1R | DUAL MONOSTABLE MULTIVIBRATOR | Datasheet*) |
| M54HC221AC1R | DUAL MONOSTABLE MULTIVIBRATOR | Datasheet*) |
| M54HC221AF1R | DUAL MONOSTABLE MULTIVIBRATOR | Datasheet*) |
| M54HC221AM1R | DUAL MONOSTABLE MULTIVIBRATOR | Datasheet*) |
| M54HC221B1R | DUAL MONOSTABLE MULTIVIBRATOR | Datasheet*) |
| M54HC221C1R | DUAL MONOSTABLE MULTIVIBRATOR | Datasheet*) |
| M54HC221F1R | DUAL MONOSTABLE MULTIVIBRATOR | Datasheet*) |
| M54HC221M1R | DUAL MONOSTABLE MULTIVIBRATOR | Datasheet*) |
