| PartNumber | SN74AS161D | SN74AS161DE4 | SN74AS161DG4 |
| Description | Counter Shift Registers Synchronous 4-Bit Binary Counters | Counter ICs Synchronous 4-Bit Binary Counters | IC COUNTER BINARY 4BIT 16SOIC |
| Manufacturer | Texas Instruments | Texas Instruments | - |
| Product Category | Counter Shift Registers | Counter ICs | - |
| RoHS | Y | Y | - |
| Counter Type | Binary | Binary | - |
| Counting Sequence | Up | - | - |
| Number of Circuits | 1 | - | - |
| Number of Bits | 4 bit | 4 | - |
| Package / Case | SOIC-16 | SOP-16 | - |
| Logic Family | TTL | TTL | - |
| Logic Type | Bipolar | - | - |
| Number of Input Lines | 4 | - | - |
| Propagation Delay Time | 13 ns | - | - |
| Supply Voltage Max | 5.5 V | - | - |
| Minimum Operating Temperature | 0 C | 0 C | - |
| Maximum Operating Temperature | + 70 C | + 70 C | - |
| Packaging | Tube | Tube | - |
| Function | Counter | - | - |
| Width | 3.91 mm | - | - |
| Brand | Texas Instruments | Texas Instruments | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Number of Output Lines | 4 | - | - |
| Operating Supply Voltage | 4.5 V to 5.5 V | 4.5 V to 5.5 V | - |
| Product Type | Counter Shift Registers | Counter ICs | - |
| Factory Pack Quantity | 1 | 1 | - |
| Subcategory | Logic ICs | Counter ICs | - |
| Unit Weight | 0.007079 oz | 0.014829 oz | - |
| Counting Method | - | Asynchronous | - |
| Operating Temperature Range | - | 0 C to + 70 C | - |