| PartNumber | SN74ALS561ADW | SN74ALS561ADWE4 | SN74ALS561ADWG4 |
| Description | Counter Shift Registers Sync 4-Bit Binary Counter W/3-St Otpt | Counter ICs Sync 4-Bit Binary Counter W/3-St Otpt | Counter ICs Synch 4B Binary Counters |
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Category | Counter Shift Registers | Counter ICs | Counter ICs |
| RoHS | Y | Y | Y |
| Counter Type | Binary | Binary | Binary |
| Counting Sequence | Up/Down | - | - |
| Number of Circuits | 1 | - | - |
| Number of Bits | 4 bit | 4 | 4 |
| Package / Case | SOIC-20 | SOIC-20 | SOIC-20 |
| Logic Family | TTL | TTL | TTL |
| Logic Type | Bipolar | - | - |
| Number of Input Lines | 4 | - | - |
| Output Type | 3-State | - | - |
| Propagation Delay Time | 18 ns | - | - |
| Supply Voltage Max | 5.5 V | - | - |
| Minimum Operating Temperature | 0 C | 0 C | - |
| Maximum Operating Temperature | + 70 C | + 70 C | - |
| Packaging | Tube | Tube | Tube |
| Function | Counter | - | - |
| Width | 7.52 mm | - | - |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| Mounting Style | SMD/SMT | 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 | 4.5 V to 5.5 V |
| Product Type | Counter Shift Registers | Counter ICs | Counter ICs |
| Factory Pack Quantity | 1 | 1 | 1 |
| Subcategory | Logic ICs | Counter ICs | Counter ICs |
| Unit Weight | 0.018953 oz | 0.028254 oz | 0.028254 oz |
| Counting Method | - | Asynchronous | Asynchronous |
| Operating Temperature Range | - | 0 C to + 70 C | - |