| PartNumber | CD74HCT166MT | CD74HCT173E | CD74HCT166MG4 |
| Description | Counter Shift Registers High Speed CMOS 8-Bit Shift Register | Flip Flops Hi-Spd CMOS Quad D-Type F-F | Counter Shift Registers Hi Sp CMOS 8B Par-In Ser-Out Shift Reg |
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Category | Counter Shift Registers | Flip Flops | Counter Shift Registers |
| RoHS | Y | Y | Y |
| Counting Sequence | Serial/Parallel to Serial | - | Serial/Parallel to Serial |
| Number of Circuits | 1 | 4 | 1 |
| Number of Bits | 8 bit | - | 8 bit |
| Package / Case | SOP-16 | PDIP-16 | SOP-16 |
| Logic Family | 74HCT | HCT | HCT |
| Logic Type | CMOS | D-Type Flip-Flop | CMOS |
| Number of Input Lines | 9 | 4 | 9 |
| Propagation Delay Time | 40 ns | 40 ns | 40 ns |
| Supply Voltage Max | 5.5 V | 5.5 V | 5.5 V |
| Minimum Operating Temperature | - 55 C | - 55 C | - 55 C |
| Maximum Operating Temperature | + 125 C | + 125 C | + 125 C |
| Packaging | Reel | Tube | Tube |
| Function | Shift Register | D-Type Bus Interface | Shift Register |
| Operating Temperature Range | - 55 C to + 125 C | - 55 C to + 125 C | - 55 C to + 125 C |
| Series | CD74HCT166 | CD74HCT173 | CD74HCT166 |
| Width | 3.91 mm | 6.35 mm | 3.91 mm |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| Mounting Style | SMD/SMT | Through Hole | SMD/SMT |
| Number of Output Lines | 1 | 3 | 1 |
| Operating Supply Voltage | 4.5 V to 5.5 V | 5 V | - |
| Product Type | Counter Shift Registers | Flip Flops | Counter Shift Registers |
| Factory Pack Quantity | 250 | 25 | 40 |
| Subcategory | Logic ICs | Logic ICs | Logic ICs |
| Unit Weight | 0.004998 oz | 0.033570 oz | 0.004998 oz |
| Polarity | - | Non-Inverting | - |
| Input Type | - | TTL | - |
| Output Type | - | 3-State | - |
| High Level Output Current | - | - 6 mA | - |
| Low Level Output Current | - | 6 mA | - |
| Supply Voltage Min | - | 4.5 V | - |
| Height | - | 4.57 mm | - |
| Length | - | 19.3 mm | - |
| Quiescent Current | - | 8 uA | - |
| Number of Channels | - | 4 | - |
| Reset Type | - | Master Reset | - |