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| PartNumber | MC74AC161MG | MC74AC161M | MC74AC161MEL |
| Description | Counter Shift Registers 2-6V Synchronous Presettable Binary | Counter ICs 2-6V Synchronous | |
| Manufacturer | ON Semiconductor | ON Semiconductor | - |
| Product Category | Counter Shift Registers | Counter ICs | - |
| RoHS | Y | N | - |
| Counter Type | Binary | Binary | - |
| Counting Sequence | Up | Up | - |
| Number of Circuits | 1 | - | - |
| Number of Bits | 4 bit | - | - |
| Package / Case | SOEIAJ-16 | SOEIAJ-16 | - |
| Logic Family | 74AC | 74AC | - |
| Logic Type | CMOS | - | - |
| Number of Input Lines | 4 | - | - |
| Propagation Delay Time | 12 ns, 9.5 ns | - | - |
| Supply Voltage Max | 6 V | - | - |
| Minimum Operating Temperature | - 40 C | - | - |
| Maximum Operating Temperature | + 85 C | - | - |
| Packaging | Tube | Tube | - |
| Function | Counter | - | - |
| Width | 5.45 mm | - | - |
| Brand | ON Semiconductor | ON Semiconductor | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Number of Output Lines | 4 | - | - |
| Operating Supply Voltage | 2 V to 6 V | 2 V to 6 V | - |
| Product Type | Counter Shift Registers | Counter ICs | - |
| Factory Pack Quantity | 50 | 50 | - |
| Subcategory | Logic ICs | Counter ICs | - |
| Counting Method | - | Synchronous | - |