| PartNumber | M74HC161RM13TR | M74HC161B1R | M74HC161TTR |
| Description | Counter Shift Registers Sync Binary Counter | IC COUNTER 4BIT SYNC 16-DIP | IC COUNTER 4-BIT SYNC 16-TSSOP |
| Manufacturer | STMicroelectronics | - | - |
| Product Category | Counter Shift Registers | - | - |
| RoHS | Y | - | - |
| Counter Type | Presettable | - | - |
| Counting Sequence | Up | - | - |
| Number of Circuits | 1 | - | - |
| Number of Bits | 4 bit | - | - |
| Package / Case | SO-16 | - | - |
| Logic Family | 74HC | - | - |
| Logic Type | CMOS | - | - |
| Number of Input Lines | 4 | - | - |
| Propagation Delay Time | 125 ns, 25 ns, 21 ns | - | - |
| Supply Voltage Max | 6 V | - | - |
| Minimum Operating Temperature | - 55 C | - | - |
| Maximum Operating Temperature | + 125 C | - | - |
| Packaging | Reel | - | - |
| Function | The M74HC161 is an high speed | - | - |
| Series | M74HC161 | - | - |
| Width | 4 mm | - | - |
| Brand | STMicroelectronics | - | - |
| Mounting Style | SMD/SMT | - | - |
| Number of Output Lines | 4 | - | - |
| Operating Supply Voltage | 2 V to 6 V | - | - |
| Product Type | Counter Shift Registers | - | - |
| Factory Pack Quantity | 2500 | - | - |
| Subcategory | Logic ICs | - | - |
| Unit Weight | 0.007079 oz | - | - |