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| PartNumber | SN74LV166ADGVR | SN74LV166ADG4 | SN74LV166ADGV |
| Description | Counter Shift Registers 8-Bit Parallel Load | Counter Shift Registers Parallel Load 8B Shift Registers | |
| Manufacturer | Texas Instruments | Texas Instruments | - |
| Product Category | Counter Shift Registers | Counter Shift Registers | - |
| RoHS | Y | Y | - |
| Counting Sequence | Serial/Parallel to Serial | Serial/Parallel to Serial | - |
| Number of Circuits | 1 | 1 | - |
| Number of Bits | 8 bit | 8 bit | - |
| Package / Case | TVSOP-16 | SOP-16 | - |
| Logic Family | LV | LV | - |
| Logic Type | CMOS | CMOS | - |
| Number of Input Lines | 9 | 9 | - |
| Propagation Delay Time | 23.3 ns, 18.9 ns, 11.9 ns | 23.3 ns, 18.9 ns, 11.9 ns | - |
| Supply Voltage Min | 2 V | 2 V | - |
| Supply Voltage Max | 5.5 V | 5.5 V | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Packaging | Reel | Tube | - |
| Features | Parallel Enable Input | Parallel Enable Input | - |
| Function | Shift Register | Shift Register | - |
| Height | 1.05 mm | 1.58 mm | - |
| Length | 3.6 mm | 9.9 mm | - |
| Operating Temperature Range | - 40 C to + 85 C | - 40 C to + 85 C | - |
| Series | SN74LV166A | SN74LV166A | - |
| Width | 4.4 mm | 3.91 mm | - |
| Brand | Texas Instruments | Texas Instruments | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Number of Output Lines | 1 | 1 | - |
| Operating Supply Voltage | 2.5 V, 3.3 V, 5 V | 2.5 V, 3.3 V, 5 V | - |
| Product Type | Counter Shift Registers | Counter Shift Registers | - |
| Reset Type | Asynchronous | Asynchronous | - |
| Factory Pack Quantity | 2000 | 40 | - |
| Subcategory | Logic ICs | Logic ICs | - |
| Triggering Type | Positive Edge | Positive Edge | - |
| Unit Weight | 0.001411 oz | 0.004938 oz | - |