| PartNumber | 9ZX21901BKLFT | 9ZX21901CKLF | 9ZX21901BKLF |
| Description | Clock Buffer HIGH PERF. ZDB DB190 0Z w/External Fdbk | Clock Buffer PCIE BUFFER - Z TECH | Clock Buffer HIGH PERF. ZDB DB190 0Z w/External Fdbk |
| 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 | 9ZXL | 9ZXL | 9ZXL |
| Number of Outputs | 19 Output | 19 Output | 19 Output |
| Maximum Input Frequency | 400 MHz | 400 MHz | 400 MHz |
| Supply Voltage Max | 3.465 V | 3.465 V | 3.465 V |
| Supply Voltage Min | 3.135 V | 3.135 V | 3.135 V |
| Minimum Operating Temperature | 0 C | 0 C | 0 C |
| Maximum Operating Temperature | + 70 C | + 70 C | + 70 C |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | VFQFPN-72 | VFQFPN-72 | VFQFPN-72 |
| Packaging | Reel | Tray | Tray |
| Height | 1 mm | 1 mm | 1 mm |
| Length | 10 mm | 10 mm | 10 mm |
| Output Type | HCSL | HCSL | HCSL |
| Width | 10 mm | 10 mm | 10 mm |
| Brand | IDT | IDT | IDT |
| Duty Cycle Max | 55 % | 55 % | 55 % |
| Max Output Freq | 400 MHz | 400 MHz | 400 MHz |
| Moisture Sensitive | Yes | Yes | Yes |
| Operating Supply Current | 407 mA | 407 mA | 407 mA |
| Product Type | Clock Buffer | Clock Buffer | Clock Buffer |
| Factory Pack Quantity | 2500 | 168 | 168 |
| Subcategory | Clock & Timer ICs | Clock & Timer ICs | Clock & Timer ICs |
| Tradename | 9ZX219 | 9ZX219 | 9ZX219 |
| Part # Aliases | 9ZX21901 ICS9ZX21901BKLFT | 9ZX21901 ICS9ZX21901CKLF | 9ZX21901 ICS9ZX21901BKLF |
| Input Type | - | Clock | - |