| PartNumber | 551MILFT | 551MILF | 551MLF |
| Description | Clock Buffer 1 to 4 Clock Buffer | Clock Buffer 1 TO 4 CLOCK BUFFER | Clock Buffer 1 TO 4 CLOCK BUFFER |
| Manufacturer | IDT (Integrated Device Technology) | IDT (Integrated Device Technology) | IDT (Integrated Device Technology) |
| Product Category | Clock Buffer | Clock Buffer | Clock Buffer |
| RoHS | Y | Y | Y |
| Series | 551 | 551 | 551 |
| Number of Outputs | 4 Output | 4 Output | 4 Output |
| Maximum Input Frequency | 160 MHz | 160 MHz | 160 MHz |
| Propagation Delay Max | 4 ns | 4 ns | 4 ns |
| Supply Voltage Max | 5.5 V | 5.5 V | 5.5 V |
| Supply Voltage Min | 3 V | 3 V | 3 V |
| Minimum Operating Temperature | - 40 C | - 40 C | 0 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 70 C |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | SOIC-8 | SOIC-8 | SOIC-8 |
| Packaging | Reel | Tube | Tube |
| Height | 1.5 mm | 1.5 mm | 1.5 mm |
| Length | 4.9 mm | 4.9 mm | 4.9 mm |
| Width | 3.9 mm | 3.9 mm | 3.9 mm |
| Brand | IDT | IDT | IDT |
| Operating Supply Current | 18 mA | 18 mA | 18 mA |
| Product Type | Clock Buffer | Clock Buffer | Clock Buffer |
| Factory Pack Quantity | 3000 | 97 | 97 |
| Subcategory | Clock & Timer ICs | Clock & Timer ICs | Clock & Timer ICs |
| Part # Aliases | 551 ICS551MILFT | 551 ICS551MILF | 551 ICS551MLF |
| Unit Weight | 0.019048 oz | 0.019048 oz | 0.019048 oz |