The 557-01 is a clock chip designed for use in PCI Express® Cards as a clock source. It provides a pair of differential outputs at 100 MHz in a small 8-pin SOIC package. Using IDT ’s patented Phase-Locked Loop ( PLL ) techniques, the device takes a 25 MHz crystal input and produces HCSL (Host Clock Signal Level) differential outputs at 100 MHz clock frequency. LVDS signal levels can also be supported via an alternative termination scheme.
| Integrated Device Technology | |
|---|---|
| Product Category | IC Clocks |
| Product Number | 557MI-01LFT |
| Product Name | PCI Express GEN1 Clock Source |
| Device Type | Real Time Clock |
| Bus Interface | HCSL |
| Package Type | Surface Mount; SOIC; SOIC |
| Supply Voltage | 3.3 volts |
