| PartNumber | SN74ALS166DBR | SN74ALS166DR | SN74ALS166D |
| Description | Counter Shift Registers 8bit Prll Load Shift | Counter Shift Registers Parallel-Ld 8 Bit Ser Shift Register | Counter Shift Registers Parallel-Ld 8 Bit Ser Shift Register |
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Category | Counter Shift Registers | Counter Shift Registers | Counter Shift Registers |
| RoHS | Y | Y | Y |
| Counting Sequence | Serial/Parallel to Serial | Serial/Parallel to Serial | Serial/Parallel to Serial |
| Number of Circuits | 1 | 1 | 1 |
| Number of Bits | 8 bit | 8 bit | 8 bit |
| Package / Case | SSOP-16 | SOP-16 | SOP-16 |
| Logic Family | 74ALS | ALS | 74AL |
| Logic Type | Bipolar | Bipolar | Bipolar |
| Number of Input Lines | 5 / 3 | 9 | 5 / 3 |
| Propagation Delay Time | 13 ns | 13 ns | 13 ns |
| Supply Voltage Max | 5.5 V | 5.5 V | 5.5 V |
| Minimum Operating Temperature | 0 C | 0 C | 0 C |
| Maximum Operating Temperature | + 70 C | + 70 C | + 70 C |
| Packaging | Reel | Reel | Tube |
| Function | 8 Bit Parallel Load Shift | Shift Register | Shift Register |
| Operating Temperature Range | 0 C to + 70 C | 0 C to + 70 C | 0 C to + 70 C |
| Series | SN74ALS166 | SN74ALS166 | SN74ALS166 |
| Width | 5.3 mm | 3.91 mm | 3.91 mm |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Number of Output Lines | 3 | 1 | 3 |
| Operating Supply Voltage | 4.5 V to 5.5 V | 5 V | 4.5 V to 5.5 V |
| Product Type | Counter Shift Registers | Counter Shift Registers | Counter Shift Registers |
| Factory Pack Quantity | 2000 | 2500 | 40 |
| Subcategory | Logic ICs | Logic ICs | Logic ICs |
| Unit Weight | 0.004536 oz | 0.004938 oz | 0.004998 oz |
| Supply Voltage Min | - | 4.5 V | - |
| Features | - | Parallel Enable Input | - |
| Height | - | 1.58 mm | - |
| Length | - | 9.9 mm | - |
| Reset Type | - | Asynchronous | - |
| Triggering Type | - | Positive Edge | - |