Datasheet Summary
Y2254A
..
Pentium® Processor patible Clock Synthesizer/Driver
Features
- Multiple clock outputs to meet requirements of most Pentium® motherboards
- Four pin-selectable CPU clocks @ 66.66 MHz, 60.0 MHz, and 50.0 MHz for support of Intel Triton™ PCIset based PC
- 55.0 MHz pin-selectable CPU clock also available (2 option only)
- Six PCI clocks at 1/2 CPU Clock frequency
- One I/O clock @ 24 MHz
- One Keyboard Controller clock @ 12 MHz (1 option) or one Universal Serial Bus clock @ 48 MHz (2 option)
- Two Ref. clocks @ 14.318 MHz
- Ref. 14.318 MHz Xtal oscillator input
- CPU clock jitter < 200 ps cycle-to-cycle
- Low skew outputs
- < 250 ps between CPU clocks
-...
