| 54F161A | National Semiconductor | Synchronous Presettable 4-Bit Binary Counter (Asynchronous Reset) |
| 54F161ALMQB | National Semiconductor | Synchronous Presettable 4-Bit Binary Counter (Asynchronous Reset) |
| 54F161ADMQB | National Semiconductor | Synchronous Presettable 4-Bit Binary Counter (Asynchronous Reset) |
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