| PartNumber | SN74HC166AIDRQ1 | SN74HC166AIPWRG4Q1 | SN74HC166AIDREP |
| Description | Counter Shift Registers 8 Bit Parallel Load Shift Register | Counter Shift Registers 8B SHIFT Reg | Counter Shift Registers 8-Bit Parallel-Load 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 | SOP-16 | TSSOP-16 | SOP-16 |
| Logic Family | 74HC | HC | HC |
| Logic Type | CMOS | CMOS | CMOS |
| Number of Input Lines | 5 | 9 | 9 |
| Output Type | Parallel / Serial | - | - |
| Propagation Delay Time | 150 ns, 30 ns, 26 ns | 150 ns, 30 ns, 26 ns | 150 ns, 30 ns, 26 ns |
| Supply Voltage Max | 6 V | 6 V | 6 V |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 125 C | + 125 C | + 85 C |
| Qualification | AEC-Q100 | AEC-Q100 | - |
| Packaging | Reel | Reel | Reel |
| Function | Shift Register | Shift Register | Shift Register |
| Operating Temperature Range | - 40 C to + 125 C | - 40 C to + 125 C | - 40 C to + 85 C |
| Series | SN74HC166A-Q1 | SN74HC166A-Q1 | SN74HC166A-EP |
| Width | 3.91 mm | 4.4 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 | 1 |
| Operating Supply Voltage | 2 V to 6 V | - | 5 V |
| Product Type | Counter Shift Registers | Counter Shift Registers | Counter Shift Registers |
| Factory Pack Quantity | 2500 | 2000 | 2500 |
| Subcategory | Logic ICs | Logic ICs | Logic ICs |
| Unit Weight | 0.004998 oz | 0.002183 oz | 0.004938 oz |
| Supply Voltage Min | - | - | 2 V |
| Features | - | - | Parallel Enable Input |
| Height | - | - | 1.58 mm |
| Length | - | - | 9.9 mm |
| Triggering Type | - | - | Positive Edge |
| Part # Aliases | - | - | V62/04690-01XE |