| PartNumber | M74HC166RM13TR | M74HC166B1R |
| Description | Counter Shift Registers 8-Bit PISO Shift Reg | Counter Shift Registers 8-Bit PISO Shift Reg |
| Manufacturer | STMicroelectronics | STMicroelectronics |
| Product Category | Counter Shift Registers | Counter Shift Registers |
| RoHS | Y | T |
| Counting Sequence | Serial/Parallel to Serial | Serial/Parallel to Serial |
| Number of Circuits | 8 | 8 |
| Number of Bits | 8 bit | 8 bit |
| Package / Case | SOP-16 | DIP-16 |
| Logic Family | 74HC | 74HC |
| Logic Type | CMOS | CMOS |
| Number of Input Lines | 9 | 9 |
| Propagation Delay Time | 150 ns, 30 ns, 26 ns | 150 ns, 30 ns, 26 ns |
| Supply Voltage Max | 6 V | 6 V |
| Minimum Operating Temperature | - 55 C | - 55 C |
| Maximum Operating Temperature | + 125 C | + 125 C |
| Packaging | Reel | Tube |
| Function | The M74HC166 is an high speed CMOS 8 BIT PISO SHIFT REGISTER | Register |
| Series | M74HC166 | M74HC166 |
| Width | 4 mm | 7.1 mm |
| Brand | STMicroelectronics | STMicroelectronics |
| Mounting Style | SMD/SMT | Through Hole |
| Number of Output Lines | 1 | 1 |
| Operating Supply Voltage | 2 V to 6 V | 2 V to 6 V |
| Product Type | Counter Shift Registers | Counter Shift Registers |
| Factory Pack Quantity | 2500 | 1000 |
| Subcategory | Logic ICs | Logic ICs |
| Unit Weight | 0.008536 oz | 0.057419 oz |